‡‡‡ Chapter 9 was amended by 
Local Law 
77 
of 2023
. This law has an effective
 date of June 10, 2023.
CHAPTER 9
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION MC 901
GENERAL
901.1 Scope. 
This chapter shall govern the approval, design, installation, construction, maintenance, alteration and 
repair of the appliances and equipment specific
ally identified herein and factory
-
built fireplaces. The approval, design, 
installation, construction, maintenance, alteration and repair of 
gas
-
fired
appliances shall be regulated by the 
New 
York City
Fuel Gas Code
. 
901.2 General. 
The 
requirements of this chapter shall apply to the mechanical equipment and appliances regulated by 
this chapter, in addition to the other requirements of this code, and installed in accordance with the requirements of 
NFPA 31, NFPA 54 and NFPA 211
. 
901.3 Sol
id fuel
-
burning fireplaces and appliances.
All solid fuel
-
burning fireplaces and appliances shall be in-
stalled, altered and maintained in buildings in conformity with the applicable provisions of the 
New York City Air 
Pollution Control
Code
and no new solid fuel
-
burning fireplaces or appliances shall be permitted except those that 
burn the types of fuel allowed by such code.
901.4 Hazardous locations. 
Fireplaces and solid fuel
-
burning appliances shall not be installed in hazardous locations.
901.5 Inspectio
n of solid fuel
-
burning heating appliances, chimneys and flues.
Inspections of solid fuel
-
burning 
heating appliances, chimneys and flues shall be in accordance with the 
New York City Building Code
.
901.6 Fireplaces.
Fireplaces (solid
-
fuel
-
type or ANSI Z21.50) shall be installed with tight
-
fitting noncombustible 
fireplace doors to control infiltration losses in construction types listed here:
1.
Masonry or factory
-
built fireplaces designed to allow an open burn.
2.
Decorative appliances (ANSI Z21.60 gas
-
log 
style unit) installed in a vented solid fuel fireplace.
3.
Vented decorative gas fireplace appliances (ANSI Z21.50 unit).
Fireplaces shall be provided with a source of combustion air as required by the fireplace construction provisions of 
the 
New York City
Building Code
and Chapter 7 of this code.
SECTION 
MC 902
MASONRY FIREPLACES
902.1 General. 
Masonry fireplaces shall be constructed in accordance with the 
New York City Building Code
. 
902.2 Fireplace accessories. 
Listed and labeled fireplace accessories shall be installed in accordance with the condi-
tions of the listing and the manufacturer’s instructions. Fireplace accessories shall comply with UL 907.
SECTION MC 903
FACTORY
-
BUILT FIREPLACES
903.1 General. 
Factory
-
built fireplaces shall be li
sted and labeled and shall be installed in accordance with the con-
ditions of the listing. Factory
-
built fireplaces shall be tested in accordance with UL 127.
SPECIFIC APPLIANCES AND EQUIPMENT
903.2 Hearth extensions. 
Hearth extensions of approved factory
-
built fireplaces shall be installed
in accordance with 
the listing of the fireplace. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed 
and labeled hearth extensions shall comply with UL 1618.
903.3 Unvented gas log heaters.
The installation of 
unv
ented gas
-
fired space heaters, gas stoves, gas logs, gas fire-
places and gas 
fireplace 
inserts is prohibited
.
903.4 Gasketed fireplace doors. 
A gasketed fireplace door shall not be installed on a factory
-
built fireplace except 
where the fireplace system has
been specifically tested, listed and labeled for such use in accordance with UL 127.
903.5 Flues.
Separate flues shall be provided for every
fireplace
and 
fireplace 
stove.
903.6 Combustion air supply.
All installations of
factory
-
built 
fireplaces shall co
mply
with 
the requirements of the 
New York City Energy Conservation Code
concerning combustion air supply
.
SECTION 
MC 
904
PELLET FUEL
-
BURNING APPLIANCES
904.1 General. 
Pellet fuel
-
burning appliances shall be listed and labeled in accordance with ASTM E 
1509 and shall 
be installed in accordance with the terms of the listing.
If permitted, such appliances shall be operated in accordance 
with the 
New York City Air Pollution Control Code.
SECTION 
MC 
905
FIREPLACE STOVES AND ROOM HEATERS
905.1 General. 
Fireplace stoves and solid
-
fuel
-
type room heaters shall be listed and labeled and shall be installed in 
accordance with the conditions of the listing. Fireplace stoves shall be tested in accordance with UL 737. Solid
-
fuel
-
type room heaters s
hall be tested in accordance with UL 1482. Fireplace inserts intended for installation in fireplaces 
shall be listed and labeled in accordance with the requirements of UL 1482 and shall be installed in accordance with 
the manufacturer’s instructions.
905.2
Connection to fireplace. 
The connection of solid fuel appliances to chimney flues serving fireplaces shall 
comply with Sections 801.7 and 801.10.
905.3 Hearth extensions. 
Hearth extensions for fireplace stoves shall be installed in accordance with the lis
ting of 
the fireplace stove. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed and 
labeled hearth extensions shall comply with UL 1618.
905.4 Air pollution.
All 
fireplace stoves 
and room heaters shall comply with
the requirements of the 
New York City 
Air Pollution Control Code
.
905.5 Combustion air supply.
All fireplace stoves and room heaters shall comply with the requirements of the 
New 
York City Energy Conservation Code
concerning combustion air supply.
905.6 F
lues.
Separate flues and independent combustion air source 
shall be 
provided for every fireplace stove and 
room heater. Combustion air shall be provided
in accordance with the 
manufacturer’s recommendations and Chapter 
7
.
SECTION 
MC 
906
FACTORY
-
BUILT BARBECUE APPLIANCES
‡‡‡
906.1 General. 
Factory
-
built barbecue appliances shall be listed and labeled for the use intended and shall be 
installed in accordance with the manufacturer’s instructions, this chapter
, 
the 
New York City
Fuel Gas Code
,
and 
Chapters 3, 5, 7, and 8 of this code
. 
The construction and installation of chimneys serving barbeque appliances shall 
comply with all construction and installation requirements of fireplaces.
‡‡‡ Chapter 9 was amended by 
Local Law 
77 
of 2023
. This law has an effective
 date of June 10, 2023.
CHAPTER 9
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION MC 901
GENERAL
901.1 Scope. 
This chapter shall govern the approval, design, installation, construction, maintenance, alteration and 
repair of the appliances and equipment specific
ally identified herein and factory
-
built fireplaces. The approval, design, 
installation, construction, maintenance, alteration and repair of 
gas
-
fired
appliances shall be regulated by the 
New 
York City
Fuel Gas Code
. 
901.2 General. 
The 
requirements of this chapter shall apply to the mechanical equipment and appliances regulated by 
this chapter, in addition to the other requirements of this code, and installed in accordance with the requirements of 
NFPA 31, NFPA 54 and NFPA 211
. 
901.3 Sol
id fuel
-
burning fireplaces and appliances.
All solid fuel
-
burning fireplaces and appliances shall be in-
stalled, altered and maintained in buildings in conformity with the applicable provisions of the 
New York City Air 
Pollution Control
Code
and no new solid fuel
-
burning fireplaces or appliances shall be permitted except those that 
burn the types of fuel allowed by such code.
901.4 Hazardous locations. 
Fireplaces and solid fuel
-
burning appliances shall not be installed in hazardous locations.
901.5 Inspectio
n of solid fuel
-
burning heating appliances, chimneys and flues.
Inspections of solid fuel
-
burning 
heating appliances, chimneys and flues shall be in accordance with the 
New York City Building Code
.
901.6 Fireplaces.
Fireplaces (solid
-
fuel
-
type or ANSI Z21.50) shall be installed with tight
-
fitting noncombustible 
fireplace doors to control infiltration losses in construction types listed here:
1.
Masonry or factory
-
built fireplaces designed to allow an open burn.
2.
Decorative appliances (ANSI Z21.60 gas
-
log 
style unit) installed in a vented solid fuel fireplace.
3.
Vented decorative gas fireplace appliances (ANSI Z21.50 unit).
Fireplaces shall be provided with a source of combustion air as required by the fireplace construction provisions of 
the 
New York City
Building Code
and Chapter 7 of this code.
SECTION 
MC 902
MASONRY FIREPLACES
902.1 General. 
Masonry fireplaces shall be constructed in accordance with the 
New York City Building Code
. 
902.2 Fireplace accessories. 
Listed and labeled fireplace accessories shall be installed in accordance with the condi-
tions of the listing and the manufacturer’s instructions. Fireplace accessories shall comply with UL 907.
SECTION MC 903
FACTORY
-
BUILT FIREPLACES
903.1 General. 
Factory
-
built fireplaces shall be li
sted and labeled and shall be installed in accordance with the con-
ditions of the listing. Factory
-
built fireplaces shall be tested in accordance with UL 127.
SPECIFIC APPLIANCES AND EQUIPMENT
903.2 Hearth extensions. 
Hearth extensions of approved factory
-
built fireplaces shall be installed
in accordance with 
the listing of the fireplace. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed 
and labeled hearth extensions shall comply with UL 1618.
903.3 Unvented gas log heaters.
The installation of 
unv
ented gas
-
fired space heaters, gas stoves, gas logs, gas fire-
places and gas 
fireplace 
inserts is prohibited
.
903.4 Gasketed fireplace doors. 
A gasketed fireplace door shall not be installed on a factory
-
built fireplace except 
where the fireplace system has
been specifically tested, listed and labeled for such use in accordance with UL 127.
903.5 Flues.
Separate flues shall be provided for every
fireplace
and 
fireplace 
stove.
903.6 Combustion air supply.
All installations of
factory
-
built 
fireplaces shall co
mply
with 
the requirements of the 
New York City Energy Conservation Code
concerning combustion air supply
.
SECTION 
MC 
904
PELLET FUEL
-
BURNING APPLIANCES
904.1 General. 
Pellet fuel
-
burning appliances shall be listed and labeled in accordance with ASTM E 
1509 and shall 
be installed in accordance with the terms of the listing.
If permitted, such appliances shall be operated in accordance 
with the 
New York City Air Pollution Control Code.
SECTION 
MC 
905
FIREPLACE STOVES AND ROOM HEATERS
905.1 General. 
Fireplace stoves and solid
-
fuel
-
type room heaters shall be listed and labeled and shall be installed in 
accordance with the conditions of the listing. Fireplace stoves shall be tested in accordance with UL 737. Solid
-
fuel
-
type room heaters s
hall be tested in accordance with UL 1482. Fireplace inserts intended for installation in fireplaces 
shall be listed and labeled in accordance with the requirements of UL 1482 and shall be installed in accordance with 
the manufacturer’s instructions.
905.2
Connection to fireplace. 
The connection of solid fuel appliances to chimney flues serving fireplaces shall 
comply with Sections 801.7 and 801.10.
905.3 Hearth extensions. 
Hearth extensions for fireplace stoves shall be installed in accordance with the lis
ting of 
the fireplace stove. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed and 
labeled hearth extensions shall comply with UL 1618.
905.4 Air pollution.
All 
fireplace stoves 
and room heaters shall comply with
the requirements of the 
New York City 
Air Pollution Control Code
.
905.5 Combustion air supply.
All fireplace stoves and room heaters shall comply with the requirements of the 
New 
York City Energy Conservation Code
concerning combustion air supply.
905.6 F
lues.
Separate flues and independent combustion air source 
shall be 
provided for every fireplace stove and 
room heater. Combustion air shall be provided
in accordance with the 
manufacturer’s recommendations and Chapter 
7
.
SECTION 
MC 
906
FACTORY
-
BUILT BARBECUE APPLIANCES
‡‡‡
906.1 General. 
Factory
-
built barbecue appliances shall be listed and labeled for the use intended and shall be 
installed in accordance with the manufacturer’s instructions, this chapter
, 
the 
New York City
Fuel Gas Code
,
and 
Chapters 3, 5, 7, and 8 of this code
. 
The construction and installation of chimneys serving barbeque appliances shall 
comply with all construction and installation requirements of fireplaces.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
907
INCINERATORS AND CREMATORIES
907.1 General. 
Incinerators and crematories shall be listed and labeled in accordance with UL 791 and 
NFPA 82 and 
shall be installed in accordance with the manufacturer’s
instructions.
907.2 Compliance.
All incinerators and crematories shall be installed, altered and mai
ntained in buildings in con-
formity with the applicable provisions of the 
Administrative Code
and the 
New York City Air Pollution Control Code
.
SECTION 
MC 
908
COOLING TOWERS, EVAPORATIVE CONDENSERS AND FLUID COOLERS
908.1 General. 
A cooling tower used in 
conjunction with an air
-
conditioning appliance shall be installed in accordance 
with the manufacturer’s instructions.
908.2 Access. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with ready access.
908.3 Location. 
Cooling towers
, evaporative condensers and fluid coolers shall be located to prevent the discharge 
vapor plumes from entering occupied spaces. Plume discharges shall be not less than 5 feet (1524 mm) above or 20 
feet (6096 mm) away from any ventilation inlet to a buildi
ng. Location on the property shall be as required for build-
ings in accordance with the 
New York City
Building Code
.
908.3.1 Indoor.
Cooling towers, evaporative condensers and fluid coolers located inside of buildings shall be 
constructed of noncombustible 
materials including fill and drift eliminators.
908.3.2 Outside.
Cooling towers shall be constructed of noncombustible materials.
Exceptions:
1.
Fill and drift eliminators of limited combustible materials may be considered noncombustible if the cool-
ing to
wers are provided with automatic sprinkler protection in compliance with Chapter 9 of the 
New York 
City Building Code
.
2.
Fill and drift eliminators for any individual cooling tower cell may be made of limited combustible mate-
rials provided all the followi
ng conditions are met:
2.1.
The cooling tower is located on a building of construction Types IA or IB of the 
New York City 
Building Code
.
2.2.
The cooling tower cell is located at least 30 feet (9144 mm) away from windows or fresh air intakes 
which are at 
an elevation above the roof on which the cooling tower is located, whether in the same 
building or in an adjoining building.
2.3.
The cooling tower cell is located not less than 15 feet (4572 mm) from the lot line.
2.4.
The cooling tower cell is located no
t less than 10 feet (3048 mm) from any chimney, except that the 
distance shall not be less than 20 feet (6096 mm) from a chimney venting products of combustion 
other than from gas
-
or oil
-
fired appliances, whether on the same or an adjoining building.
908.
4 Support and anchorage.   
Supports for cooling towers, evaporative condensers and fluid coolers shall be de-
signed in accordance with the 
New York City
Building Code. 
Seismic restraints shall be as required by the 
New York 
City
Building Code
. Adequate vibra
tion isolation shall be provided in accordance with the manufacturer’s guidelines 
and as required for the supporting structure, and in accordance with Sections 313.3.7 and 313.3.8.
908.5 Water supply. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with an approved 
water supply, sized for peak demand. The quality of water shall be provided in accordance with the equipment man-
ufacturer’s recommendations. The piping system and p
rotection of the potable water supply system shall be installed 
as required by the 
New York City
Plumbing Code
.
908.6 Drainage. 
Drains, overflows and blowdown provisions shall be indirectly connected to an approved disposal 
location. Discharge of 
chemical waste shall be approved by the appropriate regulatory authority.
908.7 Refrigerants and hazardous fluids. 
Heat exchange equipment that contains a refrigerant and that is part of a 
closed refrigeration system shall comply with Chapter 11. Heat 
exch
ange 
equipment containing heat transfer fluids 
‡‡‡ Chapter 9 was amended by 
Local Law 
77 
of 2023
. This law has an effective
 date of June 10, 2023.
CHAPTER 9
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION MC 901
GENERAL
901.1 Scope. 
This chapter shall govern the approval, design, installation, construction, maintenance, alteration and 
repair of the appliances and equipment specific
ally identified herein and factory
-
built fireplaces. The approval, design, 
installation, construction, maintenance, alteration and repair of 
gas
-
fired
appliances shall be regulated by the 
New 
York City
Fuel Gas Code
. 
901.2 General. 
The 
requirements of this chapter shall apply to the mechanical equipment and appliances regulated by 
this chapter, in addition to the other requirements of this code, and installed in accordance with the requirements of 
NFPA 31, NFPA 54 and NFPA 211
. 
901.3 Sol
id fuel
-
burning fireplaces and appliances.
All solid fuel
-
burning fireplaces and appliances shall be in-
stalled, altered and maintained in buildings in conformity with the applicable provisions of the 
New York City Air 
Pollution Control
Code
and no new solid fuel
-
burning fireplaces or appliances shall be permitted except those that 
burn the types of fuel allowed by such code.
901.4 Hazardous locations. 
Fireplaces and solid fuel
-
burning appliances shall not be installed in hazardous locations.
901.5 Inspectio
n of solid fuel
-
burning heating appliances, chimneys and flues.
Inspections of solid fuel
-
burning 
heating appliances, chimneys and flues shall be in accordance with the 
New York City Building Code
.
901.6 Fireplaces.
Fireplaces (solid
-
fuel
-
type or ANSI Z21.50) shall be installed with tight
-
fitting noncombustible 
fireplace doors to control infiltration losses in construction types listed here:
1.
Masonry or factory
-
built fireplaces designed to allow an open burn.
2.
Decorative appliances (ANSI Z21.60 gas
-
log 
style unit) installed in a vented solid fuel fireplace.
3.
Vented decorative gas fireplace appliances (ANSI Z21.50 unit).
Fireplaces shall be provided with a source of combustion air as required by the fireplace construction provisions of 
the 
New York City
Building Code
and Chapter 7 of this code.
SECTION 
MC 902
MASONRY FIREPLACES
902.1 General. 
Masonry fireplaces shall be constructed in accordance with the 
New York City Building Code
. 
902.2 Fireplace accessories. 
Listed and labeled fireplace accessories shall be installed in accordance with the condi-
tions of the listing and the manufacturer’s instructions. Fireplace accessories shall comply with UL 907.
SECTION MC 903
FACTORY
-
BUILT FIREPLACES
903.1 General. 
Factory
-
built fireplaces shall be li
sted and labeled and shall be installed in accordance with the con-
ditions of the listing. Factory
-
built fireplaces shall be tested in accordance with UL 127.
SPECIFIC APPLIANCES AND EQUIPMENT
903.2 Hearth extensions. 
Hearth extensions of approved factory
-
built fireplaces shall be installed
in accordance with 
the listing of the fireplace. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed 
and labeled hearth extensions shall comply with UL 1618.
903.3 Unvented gas log heaters.
The installation of 
unv
ented gas
-
fired space heaters, gas stoves, gas logs, gas fire-
places and gas 
fireplace 
inserts is prohibited
.
903.4 Gasketed fireplace doors. 
A gasketed fireplace door shall not be installed on a factory
-
built fireplace except 
where the fireplace system has
been specifically tested, listed and labeled for such use in accordance with UL 127.
903.5 Flues.
Separate flues shall be provided for every
fireplace
and 
fireplace 
stove.
903.6 Combustion air supply.
All installations of
factory
-
built 
fireplaces shall co
mply
with 
the requirements of the 
New York City Energy Conservation Code
concerning combustion air supply
.
SECTION 
MC 
904
PELLET FUEL
-
BURNING APPLIANCES
904.1 General. 
Pellet fuel
-
burning appliances shall be listed and labeled in accordance with ASTM E 
1509 and shall 
be installed in accordance with the terms of the listing.
If permitted, such appliances shall be operated in accordance 
with the 
New York City Air Pollution Control Code.
SECTION 
MC 
905
FIREPLACE STOVES AND ROOM HEATERS
905.1 General. 
Fireplace stoves and solid
-
fuel
-
type room heaters shall be listed and labeled and shall be installed in 
accordance with the conditions of the listing. Fireplace stoves shall be tested in accordance with UL 737. Solid
-
fuel
-
type room heaters s
hall be tested in accordance with UL 1482. Fireplace inserts intended for installation in fireplaces 
shall be listed and labeled in accordance with the requirements of UL 1482 and shall be installed in accordance with 
the manufacturer’s instructions.
905.2
Connection to fireplace. 
The connection of solid fuel appliances to chimney flues serving fireplaces shall 
comply with Sections 801.7 and 801.10.
905.3 Hearth extensions. 
Hearth extensions for fireplace stoves shall be installed in accordance with the lis
ting of 
the fireplace stove. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed and 
labeled hearth extensions shall comply with UL 1618.
905.4 Air pollution.
All 
fireplace stoves 
and room heaters shall comply with
the requirements of the 
New York City 
Air Pollution Control Code
.
905.5 Combustion air supply.
All fireplace stoves and room heaters shall comply with the requirements of the 
New 
York City Energy Conservation Code
concerning combustion air supply.
905.6 F
lues.
Separate flues and independent combustion air source 
shall be 
provided for every fireplace stove and 
room heater. Combustion air shall be provided
in accordance with the 
manufacturer’s recommendations and Chapter 
7
.
SECTION 
MC 
906
FACTORY
-
BUILT BARBECUE APPLIANCES
‡‡‡
906.1 General. 
Factory
-
built barbecue appliances shall be listed and labeled for the use intended and shall be 
installed in accordance with the manufacturer’s instructions, this chapter
, 
the 
New York City
Fuel Gas Code
,
and 
Chapters 3, 5, 7, and 8 of this code
. 
The construction and installation of chimneys serving barbeque appliances shall 
comply with all construction and installation requirements of fireplaces.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
907
INCINERATORS AND CREMATORIES
907.1 General. 
Incinerators and crematories shall be listed and labeled in accordance with UL 791 and 
NFPA 82 and 
shall be installed in accordance with the manufacturer’s
instructions.
907.2 Compliance.
All incinerators and crematories shall be installed, altered and mai
ntained in buildings in con-
formity with the applicable provisions of the 
Administrative Code
and the 
New York City Air Pollution Control Code
.
SECTION 
MC 
908
COOLING TOWERS, EVAPORATIVE CONDENSERS AND FLUID COOLERS
908.1 General. 
A cooling tower used in 
conjunction with an air
-
conditioning appliance shall be installed in accordance 
with the manufacturer’s instructions.
908.2 Access. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with ready access.
908.3 Location. 
Cooling towers
, evaporative condensers and fluid coolers shall be located to prevent the discharge 
vapor plumes from entering occupied spaces. Plume discharges shall be not less than 5 feet (1524 mm) above or 20 
feet (6096 mm) away from any ventilation inlet to a buildi
ng. Location on the property shall be as required for build-
ings in accordance with the 
New York City
Building Code
.
908.3.1 Indoor.
Cooling towers, evaporative condensers and fluid coolers located inside of buildings shall be 
constructed of noncombustible 
materials including fill and drift eliminators.
908.3.2 Outside.
Cooling towers shall be constructed of noncombustible materials.
Exceptions:
1.
Fill and drift eliminators of limited combustible materials may be considered noncombustible if the cool-
ing to
wers are provided with automatic sprinkler protection in compliance with Chapter 9 of the 
New York 
City Building Code
.
2.
Fill and drift eliminators for any individual cooling tower cell may be made of limited combustible mate-
rials provided all the followi
ng conditions are met:
2.1.
The cooling tower is located on a building of construction Types IA or IB of the 
New York City 
Building Code
.
2.2.
The cooling tower cell is located at least 30 feet (9144 mm) away from windows or fresh air intakes 
which are at 
an elevation above the roof on which the cooling tower is located, whether in the same 
building or in an adjoining building.
2.3.
The cooling tower cell is located not less than 15 feet (4572 mm) from the lot line.
2.4.
The cooling tower cell is located no
t less than 10 feet (3048 mm) from any chimney, except that the 
distance shall not be less than 20 feet (6096 mm) from a chimney venting products of combustion 
other than from gas
-
or oil
-
fired appliances, whether on the same or an adjoining building.
908.
4 Support and anchorage.   
Supports for cooling towers, evaporative condensers and fluid coolers shall be de-
signed in accordance with the 
New York City
Building Code. 
Seismic restraints shall be as required by the 
New York 
City
Building Code
. Adequate vibra
tion isolation shall be provided in accordance with the manufacturer’s guidelines 
and as required for the supporting structure, and in accordance with Sections 313.3.7 and 313.3.8.
908.5 Water supply. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with an approved 
water supply, sized for peak demand. The quality of water shall be provided in accordance with the equipment man-
ufacturer’s recommendations. The piping system and p
rotection of the potable water supply system shall be installed 
as required by the 
New York City
Plumbing Code
.
908.6 Drainage. 
Drains, overflows and blowdown provisions shall be indirectly connected to an approved disposal 
location. Discharge of 
chemical waste shall be approved by the appropriate regulatory authority.
908.7 Refrigerants and hazardous fluids. 
Heat exchange equipment that contains a refrigerant and that is part of a 
closed refrigeration system shall comply with Chapter 11. Heat 
exch
ange 
equipment containing heat transfer fluids 
‡‡‡ Chapter 9 was amended by 
Local Law 
77 
of 2023
. This law has an effective
 date of June 10, 2023.
CHAPTER 9
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION MC 901
GENERAL
901.1 Scope. 
This chapter shall govern the approval, design, installation, construction, maintenance, alteration and 
repair of the appliances and equipment specific
ally identified herein and factory
-
built fireplaces. The approval, design, 
installation, construction, maintenance, alteration and repair of 
gas
-
fired
appliances shall be regulated by the 
New 
York City
Fuel Gas Code
. 
901.2 General. 
The 
requirements of this chapter shall apply to the mechanical equipment and appliances regulated by 
this chapter, in addition to the other requirements of this code, and installed in accordance with the requirements of 
NFPA 31, NFPA 54 and NFPA 211
. 
901.3 Sol
id fuel
-
burning fireplaces and appliances.
All solid fuel
-
burning fireplaces and appliances shall be in-
stalled, altered and maintained in buildings in conformity with the applicable provisions of the 
New York City Air 
Pollution Control
Code
and no new solid fuel
-
burning fireplaces or appliances shall be permitted except those that 
burn the types of fuel allowed by such code.
901.4 Hazardous locations. 
Fireplaces and solid fuel
-
burning appliances shall not be installed in hazardous locations.
901.5 Inspectio
n of solid fuel
-
burning heating appliances, chimneys and flues.
Inspections of solid fuel
-
burning 
heating appliances, chimneys and flues shall be in accordance with the 
New York City Building Code
.
901.6 Fireplaces.
Fireplaces (solid
-
fuel
-
type or ANSI Z21.50) shall be installed with tight
-
fitting noncombustible 
fireplace doors to control infiltration losses in construction types listed here:
1.
Masonry or factory
-
built fireplaces designed to allow an open burn.
2.
Decorative appliances (ANSI Z21.60 gas
-
log 
style unit) installed in a vented solid fuel fireplace.
3.
Vented decorative gas fireplace appliances (ANSI Z21.50 unit).
Fireplaces shall be provided with a source of combustion air as required by the fireplace construction provisions of 
the 
New York City
Building Code
and Chapter 7 of this code.
SECTION 
MC 902
MASONRY FIREPLACES
902.1 General. 
Masonry fireplaces shall be constructed in accordance with the 
New York City Building Code
. 
902.2 Fireplace accessories. 
Listed and labeled fireplace accessories shall be installed in accordance with the condi-
tions of the listing and the manufacturer’s instructions. Fireplace accessories shall comply with UL 907.
SECTION MC 903
FACTORY
-
BUILT FIREPLACES
903.1 General. 
Factory
-
built fireplaces shall be li
sted and labeled and shall be installed in accordance with the con-
ditions of the listing. Factory
-
built fireplaces shall be tested in accordance with UL 127.
SPECIFIC APPLIANCES AND EQUIPMENT
903.2 Hearth extensions. 
Hearth extensions of approved factory
-
built fireplaces shall be installed
in accordance with 
the listing of the fireplace. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed 
and labeled hearth extensions shall comply with UL 1618.
903.3 Unvented gas log heaters.
The installation of 
unv
ented gas
-
fired space heaters, gas stoves, gas logs, gas fire-
places and gas 
fireplace 
inserts is prohibited
.
903.4 Gasketed fireplace doors. 
A gasketed fireplace door shall not be installed on a factory
-
built fireplace except 
where the fireplace system has
been specifically tested, listed and labeled for such use in accordance with UL 127.
903.5 Flues.
Separate flues shall be provided for every
fireplace
and 
fireplace 
stove.
903.6 Combustion air supply.
All installations of
factory
-
built 
fireplaces shall co
mply
with 
the requirements of the 
New York City Energy Conservation Code
concerning combustion air supply
.
SECTION 
MC 
904
PELLET FUEL
-
BURNING APPLIANCES
904.1 General. 
Pellet fuel
-
burning appliances shall be listed and labeled in accordance with ASTM E 
1509 and shall 
be installed in accordance with the terms of the listing.
If permitted, such appliances shall be operated in accordance 
with the 
New York City Air Pollution Control Code.
SECTION 
MC 
905
FIREPLACE STOVES AND ROOM HEATERS
905.1 General. 
Fireplace stoves and solid
-
fuel
-
type room heaters shall be listed and labeled and shall be installed in 
accordance with the conditions of the listing. Fireplace stoves shall be tested in accordance with UL 737. Solid
-
fuel
-
type room heaters s
hall be tested in accordance with UL 1482. Fireplace inserts intended for installation in fireplaces 
shall be listed and labeled in accordance with the requirements of UL 1482 and shall be installed in accordance with 
the manufacturer’s instructions.
905.2
Connection to fireplace. 
The connection of solid fuel appliances to chimney flues serving fireplaces shall 
comply with Sections 801.7 and 801.10.
905.3 Hearth extensions. 
Hearth extensions for fireplace stoves shall be installed in accordance with the lis
ting of 
the fireplace stove. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed and 
labeled hearth extensions shall comply with UL 1618.
905.4 Air pollution.
All 
fireplace stoves 
and room heaters shall comply with
the requirements of the 
New York City 
Air Pollution Control Code
.
905.5 Combustion air supply.
All fireplace stoves and room heaters shall comply with the requirements of the 
New 
York City Energy Conservation Code
concerning combustion air supply.
905.6 F
lues.
Separate flues and independent combustion air source 
shall be 
provided for every fireplace stove and 
room heater. Combustion air shall be provided
in accordance with the 
manufacturer’s recommendations and Chapter 
7
.
SECTION 
MC 
906
FACTORY
-
BUILT BARBECUE APPLIANCES
‡‡‡
906.1 General. 
Factory
-
built barbecue appliances shall be listed and labeled for the use intended and shall be 
installed in accordance with the manufacturer’s instructions, this chapter
, 
the 
New York City
Fuel Gas Code
,
and 
Chapters 3, 5, 7, and 8 of this code
. 
The construction and installation of chimneys serving barbeque appliances shall 
comply with all construction and installation requirements of fireplaces.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
907
INCINERATORS AND CREMATORIES
907.1 General. 
Incinerators and crematories shall be listed and labeled in accordance with UL 791 and 
NFPA 82 and 
shall be installed in accordance with the manufacturer’s
instructions.
907.2 Compliance.
All incinerators and crematories shall be installed, altered and mai
ntained in buildings in con-
formity with the applicable provisions of the 
Administrative Code
and the 
New York City Air Pollution Control Code
.
SECTION 
MC 
908
COOLING TOWERS, EVAPORATIVE CONDENSERS AND FLUID COOLERS
908.1 General. 
A cooling tower used in 
conjunction with an air
-
conditioning appliance shall be installed in accordance 
with the manufacturer’s instructions.
908.2 Access. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with ready access.
908.3 Location. 
Cooling towers
, evaporative condensers and fluid coolers shall be located to prevent the discharge 
vapor plumes from entering occupied spaces. Plume discharges shall be not less than 5 feet (1524 mm) above or 20 
feet (6096 mm) away from any ventilation inlet to a buildi
ng. Location on the property shall be as required for build-
ings in accordance with the 
New York City
Building Code
.
908.3.1 Indoor.
Cooling towers, evaporative condensers and fluid coolers located inside of buildings shall be 
constructed of noncombustible 
materials including fill and drift eliminators.
908.3.2 Outside.
Cooling towers shall be constructed of noncombustible materials.
Exceptions:
1.
Fill and drift eliminators of limited combustible materials may be considered noncombustible if the cool-
ing to
wers are provided with automatic sprinkler protection in compliance with Chapter 9 of the 
New York 
City Building Code
.
2.
Fill and drift eliminators for any individual cooling tower cell may be made of limited combustible mate-
rials provided all the followi
ng conditions are met:
2.1.
The cooling tower is located on a building of construction Types IA or IB of the 
New York City 
Building Code
.
2.2.
The cooling tower cell is located at least 30 feet (9144 mm) away from windows or fresh air intakes 
which are at 
an elevation above the roof on which the cooling tower is located, whether in the same 
building or in an adjoining building.
2.3.
The cooling tower cell is located not less than 15 feet (4572 mm) from the lot line.
2.4.
The cooling tower cell is located no
t less than 10 feet (3048 mm) from any chimney, except that the 
distance shall not be less than 20 feet (6096 mm) from a chimney venting products of combustion 
other than from gas
-
or oil
-
fired appliances, whether on the same or an adjoining building.
908.
4 Support and anchorage.   
Supports for cooling towers, evaporative condensers and fluid coolers shall be de-
signed in accordance with the 
New York City
Building Code. 
Seismic restraints shall be as required by the 
New York 
City
Building Code
. Adequate vibra
tion isolation shall be provided in accordance with the manufacturer’s guidelines 
and as required for the supporting structure, and in accordance with Sections 313.3.7 and 313.3.8.
908.5 Water supply. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with an approved 
water supply, sized for peak demand. The quality of water shall be provided in accordance with the equipment man-
ufacturer’s recommendations. The piping system and p
rotection of the potable water supply system shall be installed 
as required by the 
New York City
Plumbing Code
.
908.6 Drainage. 
Drains, overflows and blowdown provisions shall be indirectly connected to an approved disposal 
location. Discharge of 
chemical waste shall be approved by the appropriate regulatory authority.
908.7 Refrigerants and hazardous fluids. 
Heat exchange equipment that contains a refrigerant and that is part of a 
closed refrigeration system shall comply with Chapter 11. Heat 
exch
ange 
equipment containing heat transfer fluids 
SPECIFIC APPLIANCES AND EQUIPMENT
which are combustible or hazardous shall comply with the 
New York City
Fire Code
. Flammable heat transfer fluids 
are prohibited
.
908.8 Cooling towers. 
Cooling towers, both open circuit and closed circuit type,
and evaporative condensers shall 
comply with Sections 908.8.1 and 908.8.2.
908.8.1 Conductivity or flow
-
based control of cycles of concentration. 
Cooling towers and evaporative conden-
sers shall include controls that automate system bleed based on conducti
vity, fraction of metered makeup volume, 
metered bleed volume, recirculating pump run time or bleed time.
908.8.2 Drift eliminators. 
Cooling towers and evaporative condensers shall be equipped with drift eliminators that 
have a maximum drift rate of 0.005 
percent of the circulated water flow rate as established in the equipment’s 
design specifications.
‡‡‡
908.9
Additional requirements. 
The installation and maintenance of all cooling towers, evaporative condensers, 
and fluid coolers shall comply with the req
uirements of Article 317 of Chapter 3 of Title 
28 
of the 
Administrative 
Code
.
SECTION 
MC 
909
VENTED WALL FURNACES
909.1 General. 
Vented wall furnaces shall be installed in accordance with their listing and the manufacturer’s instruc-
tions. 
Oil
-
fired furnaces shall be tested in accordance with UL 730.
909.2 Location. 
Vented wall furnaces shall be located so as not to cause a fire hazard to walls, floors, combustible 
furnishings or doors. Vented wall furnaces installed between bathrooms and ad
joining rooms shall not circulate air 
from bathrooms to other parts of the building.
909.3 Door swing. 
Vented wall furnaces shall be located so that a door cannot swing within 12 inches (304.8 mm) of 
an air inlet or air outlet of such furnace measured at r
ight angles to the opening. Doorstops or door closers shall not 
be installed to obtain this clearance.
909.4 Ducts prohibited. 
Ducts shall not be attached to wall furnaces. Casing extension boots shall not be installed 
unless listed as part of the applianc
e.
909.5 Manual shutoff valve. 
A manual shutoff valve shall be installed ahead of all controls.
909.6 Access. 
Vented wall furnaces shall be provided with access for cleaning of heating surfaces, removal of burners, 
replacement of sections, motors, controls
, filters and other working parts, and for adjustments and lubrication of parts 
requiring such attention. Panels, grilles and access doors that must be removed for normal servicing operations shall 
not be attached to the building construction.
SECTION 
MC 
9
10
FLOOR FURNACES
910.1 General. 
Floor furnaces shall be installed in accordance with their listing and the manufacturer’s instructions. 
Oil
-
fired furnaces shall be tested in accordance with UL 729.
Unvented floor furnaces are prohibited.
910.2 Placement. 
Floor furnaces shall not be installed in 
any corridor, in 
the floor of any aisle or passageway of any 
auditorium, public hall, place of assembly, or in any egress element from any such room or space.
With the exception of wall register models, a floor furn
ace shall not be placed closer than 6 inches (152.4 mm) to 
the nearest wall, and wall register models shall not be placed closer than 6 inches (152.4 mm) to a corner.
The furnace shall be placed such that a drapery or similar combustible object will not be
nearer than 12 inches 
(304.8 mm) to any portion of the register of the furnace. Floor furnaces shall not be installed in concrete floor con-
struction built on grade. The controlling thermostat for a floor furnace shall be located within the same room or sp
ace 
as the floor furnace or shall be located in an adjacent room or space that is permanently open to the room or space 
containing the floor furnace.
Floor furnaces shall be located so as to be accessible. Floor furnaces shall be installed 
‡‡‡ Chapter 9 was amended by 
Local Law 
77 
of 2023
. This law has an effective
 date of June 10, 2023.
CHAPTER 9
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION MC 901
GENERAL
901.1 Scope. 
This chapter shall govern the approval, design, installation, construction, maintenance, alteration and 
repair of the appliances and equipment specific
ally identified herein and factory
-
built fireplaces. The approval, design, 
installation, construction, maintenance, alteration and repair of 
gas
-
fired
appliances shall be regulated by the 
New 
York City
Fuel Gas Code
. 
901.2 General. 
The 
requirements of this chapter shall apply to the mechanical equipment and appliances regulated by 
this chapter, in addition to the other requirements of this code, and installed in accordance with the requirements of 
NFPA 31, NFPA 54 and NFPA 211
. 
901.3 Sol
id fuel
-
burning fireplaces and appliances.
All solid fuel
-
burning fireplaces and appliances shall be in-
stalled, altered and maintained in buildings in conformity with the applicable provisions of the 
New York City Air 
Pollution Control
Code
and no new solid fuel
-
burning fireplaces or appliances shall be permitted except those that 
burn the types of fuel allowed by such code.
901.4 Hazardous locations. 
Fireplaces and solid fuel
-
burning appliances shall not be installed in hazardous locations.
901.5 Inspectio
n of solid fuel
-
burning heating appliances, chimneys and flues.
Inspections of solid fuel
-
burning 
heating appliances, chimneys and flues shall be in accordance with the 
New York City Building Code
.
901.6 Fireplaces.
Fireplaces (solid
-
fuel
-
type or ANSI Z21.50) shall be installed with tight
-
fitting noncombustible 
fireplace doors to control infiltration losses in construction types listed here:
1.
Masonry or factory
-
built fireplaces designed to allow an open burn.
2.
Decorative appliances (ANSI Z21.60 gas
-
log 
style unit) installed in a vented solid fuel fireplace.
3.
Vented decorative gas fireplace appliances (ANSI Z21.50 unit).
Fireplaces shall be provided with a source of combustion air as required by the fireplace construction provisions of 
the 
New York City
Building Code
and Chapter 7 of this code.
SECTION 
MC 902
MASONRY FIREPLACES
902.1 General. 
Masonry fireplaces shall be constructed in accordance with the 
New York City Building Code
. 
902.2 Fireplace accessories. 
Listed and labeled fireplace accessories shall be installed in accordance with the condi-
tions of the listing and the manufacturer’s instructions. Fireplace accessories shall comply with UL 907.
SECTION MC 903
FACTORY
-
BUILT FIREPLACES
903.1 General. 
Factory
-
built fireplaces shall be li
sted and labeled and shall be installed in accordance with the con-
ditions of the listing. Factory
-
built fireplaces shall be tested in accordance with UL 127.
SPECIFIC APPLIANCES AND EQUIPMENT
903.2 Hearth extensions. 
Hearth extensions of approved factory
-
built fireplaces shall be installed
in accordance with 
the listing of the fireplace. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed 
and labeled hearth extensions shall comply with UL 1618.
903.3 Unvented gas log heaters.
The installation of 
unv
ented gas
-
fired space heaters, gas stoves, gas logs, gas fire-
places and gas 
fireplace 
inserts is prohibited
.
903.4 Gasketed fireplace doors. 
A gasketed fireplace door shall not be installed on a factory
-
built fireplace except 
where the fireplace system has
been specifically tested, listed and labeled for such use in accordance with UL 127.
903.5 Flues.
Separate flues shall be provided for every
fireplace
and 
fireplace 
stove.
903.6 Combustion air supply.
All installations of
factory
-
built 
fireplaces shall co
mply
with 
the requirements of the 
New York City Energy Conservation Code
concerning combustion air supply
.
SECTION 
MC 
904
PELLET FUEL
-
BURNING APPLIANCES
904.1 General. 
Pellet fuel
-
burning appliances shall be listed and labeled in accordance with ASTM E 
1509 and shall 
be installed in accordance with the terms of the listing.
If permitted, such appliances shall be operated in accordance 
with the 
New York City Air Pollution Control Code.
SECTION 
MC 
905
FIREPLACE STOVES AND ROOM HEATERS
905.1 General. 
Fireplace stoves and solid
-
fuel
-
type room heaters shall be listed and labeled and shall be installed in 
accordance with the conditions of the listing. Fireplace stoves shall be tested in accordance with UL 737. Solid
-
fuel
-
type room heaters s
hall be tested in accordance with UL 1482. Fireplace inserts intended for installation in fireplaces 
shall be listed and labeled in accordance with the requirements of UL 1482 and shall be installed in accordance with 
the manufacturer’s instructions.
905.2
Connection to fireplace. 
The connection of solid fuel appliances to chimney flues serving fireplaces shall 
comply with Sections 801.7 and 801.10.
905.3 Hearth extensions. 
Hearth extensions for fireplace stoves shall be installed in accordance with the lis
ting of 
the fireplace stove. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed and 
labeled hearth extensions shall comply with UL 1618.
905.4 Air pollution.
All 
fireplace stoves 
and room heaters shall comply with
the requirements of the 
New York City 
Air Pollution Control Code
.
905.5 Combustion air supply.
All fireplace stoves and room heaters shall comply with the requirements of the 
New 
York City Energy Conservation Code
concerning combustion air supply.
905.6 F
lues.
Separate flues and independent combustion air source 
shall be 
provided for every fireplace stove and 
room heater. Combustion air shall be provided
in accordance with the 
manufacturer’s recommendations and Chapter 
7
.
SECTION 
MC 
906
FACTORY
-
BUILT BARBECUE APPLIANCES
‡‡‡
906.1 General. 
Factory
-
built barbecue appliances shall be listed and labeled for the use intended and shall be 
installed in accordance with the manufacturer’s instructions, this chapter
, 
the 
New York City
Fuel Gas Code
,
and 
Chapters 3, 5, 7, and 8 of this code
. 
The construction and installation of chimneys serving barbeque appliances shall 
comply with all construction and installation requirements of fireplaces.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
907
INCINERATORS AND CREMATORIES
907.1 General. 
Incinerators and crematories shall be listed and labeled in accordance with UL 791 and 
NFPA 82 and 
shall be installed in accordance with the manufacturer’s
instructions.
907.2 Compliance.
All incinerators and crematories shall be installed, altered and mai
ntained in buildings in con-
formity with the applicable provisions of the 
Administrative Code
and the 
New York City Air Pollution Control Code
.
SECTION 
MC 
908
COOLING TOWERS, EVAPORATIVE CONDENSERS AND FLUID COOLERS
908.1 General. 
A cooling tower used in 
conjunction with an air
-
conditioning appliance shall be installed in accordance 
with the manufacturer’s instructions.
908.2 Access. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with ready access.
908.3 Location. 
Cooling towers
, evaporative condensers and fluid coolers shall be located to prevent the discharge 
vapor plumes from entering occupied spaces. Plume discharges shall be not less than 5 feet (1524 mm) above or 20 
feet (6096 mm) away from any ventilation inlet to a buildi
ng. Location on the property shall be as required for build-
ings in accordance with the 
New York City
Building Code
.
908.3.1 Indoor.
Cooling towers, evaporative condensers and fluid coolers located inside of buildings shall be 
constructed of noncombustible 
materials including fill and drift eliminators.
908.3.2 Outside.
Cooling towers shall be constructed of noncombustible materials.
Exceptions:
1.
Fill and drift eliminators of limited combustible materials may be considered noncombustible if the cool-
ing to
wers are provided with automatic sprinkler protection in compliance with Chapter 9 of the 
New York 
City Building Code
.
2.
Fill and drift eliminators for any individual cooling tower cell may be made of limited combustible mate-
rials provided all the followi
ng conditions are met:
2.1.
The cooling tower is located on a building of construction Types IA or IB of the 
New York City 
Building Code
.
2.2.
The cooling tower cell is located at least 30 feet (9144 mm) away from windows or fresh air intakes 
which are at 
an elevation above the roof on which the cooling tower is located, whether in the same 
building or in an adjoining building.
2.3.
The cooling tower cell is located not less than 15 feet (4572 mm) from the lot line.
2.4.
The cooling tower cell is located no
t less than 10 feet (3048 mm) from any chimney, except that the 
distance shall not be less than 20 feet (6096 mm) from a chimney venting products of combustion 
other than from gas
-
or oil
-
fired appliances, whether on the same or an adjoining building.
908.
4 Support and anchorage.   
Supports for cooling towers, evaporative condensers and fluid coolers shall be de-
signed in accordance with the 
New York City
Building Code. 
Seismic restraints shall be as required by the 
New York 
City
Building Code
. Adequate vibra
tion isolation shall be provided in accordance with the manufacturer’s guidelines 
and as required for the supporting structure, and in accordance with Sections 313.3.7 and 313.3.8.
908.5 Water supply. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with an approved 
water supply, sized for peak demand. The quality of water shall be provided in accordance with the equipment man-
ufacturer’s recommendations. The piping system and p
rotection of the potable water supply system shall be installed 
as required by the 
New York City
Plumbing Code
.
908.6 Drainage. 
Drains, overflows and blowdown provisions shall be indirectly connected to an approved disposal 
location. Discharge of 
chemical waste shall be approved by the appropriate regulatory authority.
908.7 Refrigerants and hazardous fluids. 
Heat exchange equipment that contains a refrigerant and that is part of a 
closed refrigeration system shall comply with Chapter 11. Heat 
exch
ange 
equipment containing heat transfer fluids 
SPECIFIC APPLIANCES AND EQUIPMENT
which are combustible or hazardous shall comply with the 
New York City
Fire Code
. Flammable heat transfer fluids 
are prohibited
.
908.8 Cooling towers. 
Cooling towers, both open circuit and closed circuit type,
and evaporative condensers shall 
comply with Sections 908.8.1 and 908.8.2.
908.8.1 Conductivity or flow
-
based control of cycles of concentration. 
Cooling towers and evaporative conden-
sers shall include controls that automate system bleed based on conducti
vity, fraction of metered makeup volume, 
metered bleed volume, recirculating pump run time or bleed time.
908.8.2 Drift eliminators. 
Cooling towers and evaporative condensers shall be equipped with drift eliminators that 
have a maximum drift rate of 0.005 
percent of the circulated water flow rate as established in the equipment’s 
design specifications.
‡‡‡
908.9
Additional requirements. 
The installation and maintenance of all cooling towers, evaporative condensers, 
and fluid coolers shall comply with the req
uirements of Article 317 of Chapter 3 of Title 
28 
of the 
Administrative 
Code
.
SECTION 
MC 
909
VENTED WALL FURNACES
909.1 General. 
Vented wall furnaces shall be installed in accordance with their listing and the manufacturer’s instruc-
tions. 
Oil
-
fired furnaces shall be tested in accordance with UL 730.
909.2 Location. 
Vented wall furnaces shall be located so as not to cause a fire hazard to walls, floors, combustible 
furnishings or doors. Vented wall furnaces installed between bathrooms and ad
joining rooms shall not circulate air 
from bathrooms to other parts of the building.
909.3 Door swing. 
Vented wall furnaces shall be located so that a door cannot swing within 12 inches (304.8 mm) of 
an air inlet or air outlet of such furnace measured at r
ight angles to the opening. Doorstops or door closers shall not 
be installed to obtain this clearance.
909.4 Ducts prohibited. 
Ducts shall not be attached to wall furnaces. Casing extension boots shall not be installed 
unless listed as part of the applianc
e.
909.5 Manual shutoff valve. 
A manual shutoff valve shall be installed ahead of all controls.
909.6 Access. 
Vented wall furnaces shall be provided with access for cleaning of heating surfaces, removal of burners, 
replacement of sections, motors, controls
, filters and other working parts, and for adjustments and lubrication of parts 
requiring such attention. Panels, grilles and access doors that must be removed for normal servicing operations shall 
not be attached to the building construction.
SECTION 
MC 
9
10
FLOOR FURNACES
910.1 General. 
Floor furnaces shall be installed in accordance with their listing and the manufacturer’s instructions. 
Oil
-
fired furnaces shall be tested in accordance with UL 729.
Unvented floor furnaces are prohibited.
910.2 Placement. 
Floor furnaces shall not be installed in 
any corridor, in 
the floor of any aisle or passageway of any 
auditorium, public hall, place of assembly, or in any egress element from any such room or space.
With the exception of wall register models, a floor furn
ace shall not be placed closer than 6 inches (152.4 mm) to 
the nearest wall, and wall register models shall not be placed closer than 6 inches (152.4 mm) to a corner.
The furnace shall be placed such that a drapery or similar combustible object will not be
nearer than 12 inches 
(304.8 mm) to any portion of the register of the furnace. Floor furnaces shall not be installed in concrete floor con-
struction built on grade. The controlling thermostat for a floor furnace shall be located within the same room or sp
ace 
as the floor furnace or shall be located in an adjacent room or space that is permanently open to the room or space 
containing the floor furnace.
Floor furnaces shall be located so as to be accessible. Floor furnaces shall be installed 
‡‡‡ Chapter 9 was amended by 
Local Law 
77 
of 2023
. This law has an effective
 date of June 10, 2023.
CHAPTER 9
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION MC 901
GENERAL
901.1 Scope. 
This chapter shall govern the approval, design, installation, construction, maintenance, alteration and 
repair of the appliances and equipment specific
ally identified herein and factory
-
built fireplaces. The approval, design, 
installation, construction, maintenance, alteration and repair of 
gas
-
fired
appliances shall be regulated by the 
New 
York City
Fuel Gas Code
. 
901.2 General. 
The 
requirements of this chapter shall apply to the mechanical equipment and appliances regulated by 
this chapter, in addition to the other requirements of this code, and installed in accordance with the requirements of 
NFPA 31, NFPA 54 and NFPA 211
. 
901.3 Sol
id fuel
-
burning fireplaces and appliances.
All solid fuel
-
burning fireplaces and appliances shall be in-
stalled, altered and maintained in buildings in conformity with the applicable provisions of the 
New York City Air 
Pollution Control
Code
and no new solid fuel
-
burning fireplaces or appliances shall be permitted except those that 
burn the types of fuel allowed by such code.
901.4 Hazardous locations. 
Fireplaces and solid fuel
-
burning appliances shall not be installed in hazardous locations.
901.5 Inspectio
n of solid fuel
-
burning heating appliances, chimneys and flues.
Inspections of solid fuel
-
burning 
heating appliances, chimneys and flues shall be in accordance with the 
New York City Building Code
.
901.6 Fireplaces.
Fireplaces (solid
-
fuel
-
type or ANSI Z21.50) shall be installed with tight
-
fitting noncombustible 
fireplace doors to control infiltration losses in construction types listed here:
1.
Masonry or factory
-
built fireplaces designed to allow an open burn.
2.
Decorative appliances (ANSI Z21.60 gas
-
log 
style unit) installed in a vented solid fuel fireplace.
3.
Vented decorative gas fireplace appliances (ANSI Z21.50 unit).
Fireplaces shall be provided with a source of combustion air as required by the fireplace construction provisions of 
the 
New York City
Building Code
and Chapter 7 of this code.
SECTION 
MC 902
MASONRY FIREPLACES
902.1 General. 
Masonry fireplaces shall be constructed in accordance with the 
New York City Building Code
. 
902.2 Fireplace accessories. 
Listed and labeled fireplace accessories shall be installed in accordance with the condi-
tions of the listing and the manufacturer’s instructions. Fireplace accessories shall comply with UL 907.
SECTION MC 903
FACTORY
-
BUILT FIREPLACES
903.1 General. 
Factory
-
built fireplaces shall be li
sted and labeled and shall be installed in accordance with the con-
ditions of the listing. Factory
-
built fireplaces shall be tested in accordance with UL 127.
SPECIFIC APPLIANCES AND EQUIPMENT
903.2 Hearth extensions. 
Hearth extensions of approved factory
-
built fireplaces shall be installed
in accordance with 
the listing of the fireplace. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed 
and labeled hearth extensions shall comply with UL 1618.
903.3 Unvented gas log heaters.
The installation of 
unv
ented gas
-
fired space heaters, gas stoves, gas logs, gas fire-
places and gas 
fireplace 
inserts is prohibited
.
903.4 Gasketed fireplace doors. 
A gasketed fireplace door shall not be installed on a factory
-
built fireplace except 
where the fireplace system has
been specifically tested, listed and labeled for such use in accordance with UL 127.
903.5 Flues.
Separate flues shall be provided for every
fireplace
and 
fireplace 
stove.
903.6 Combustion air supply.
All installations of
factory
-
built 
fireplaces shall co
mply
with 
the requirements of the 
New York City Energy Conservation Code
concerning combustion air supply
.
SECTION 
MC 
904
PELLET FUEL
-
BURNING APPLIANCES
904.1 General. 
Pellet fuel
-
burning appliances shall be listed and labeled in accordance with ASTM E 
1509 and shall 
be installed in accordance with the terms of the listing.
If permitted, such appliances shall be operated in accordance 
with the 
New York City Air Pollution Control Code.
SECTION 
MC 
905
FIREPLACE STOVES AND ROOM HEATERS
905.1 General. 
Fireplace stoves and solid
-
fuel
-
type room heaters shall be listed and labeled and shall be installed in 
accordance with the conditions of the listing. Fireplace stoves shall be tested in accordance with UL 737. Solid
-
fuel
-
type room heaters s
hall be tested in accordance with UL 1482. Fireplace inserts intended for installation in fireplaces 
shall be listed and labeled in accordance with the requirements of UL 1482 and shall be installed in accordance with 
the manufacturer’s instructions.
905.2
Connection to fireplace. 
The connection of solid fuel appliances to chimney flues serving fireplaces shall 
comply with Sections 801.7 and 801.10.
905.3 Hearth extensions. 
Hearth extensions for fireplace stoves shall be installed in accordance with the lis
ting of 
the fireplace stove. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed and 
labeled hearth extensions shall comply with UL 1618.
905.4 Air pollution.
All 
fireplace stoves 
and room heaters shall comply with
the requirements of the 
New York City 
Air Pollution Control Code
.
905.5 Combustion air supply.
All fireplace stoves and room heaters shall comply with the requirements of the 
New 
York City Energy Conservation Code
concerning combustion air supply.
905.6 F
lues.
Separate flues and independent combustion air source 
shall be 
provided for every fireplace stove and 
room heater. Combustion air shall be provided
in accordance with the 
manufacturer’s recommendations and Chapter 
7
.
SECTION 
MC 
906
FACTORY
-
BUILT BARBECUE APPLIANCES
‡‡‡
906.1 General. 
Factory
-
built barbecue appliances shall be listed and labeled for the use intended and shall be 
installed in accordance with the manufacturer’s instructions, this chapter
, 
the 
New York City
Fuel Gas Code
,
and 
Chapters 3, 5, 7, and 8 of this code
. 
The construction and installation of chimneys serving barbeque appliances shall 
comply with all construction and installation requirements of fireplaces.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
907
INCINERATORS AND CREMATORIES
907.1 General. 
Incinerators and crematories shall be listed and labeled in accordance with UL 791 and 
NFPA 82 and 
shall be installed in accordance with the manufacturer’s
instructions.
907.2 Compliance.
All incinerators and crematories shall be installed, altered and mai
ntained in buildings in con-
formity with the applicable provisions of the 
Administrative Code
and the 
New York City Air Pollution Control Code
.
SECTION 
MC 
908
COOLING TOWERS, EVAPORATIVE CONDENSERS AND FLUID COOLERS
908.1 General. 
A cooling tower used in 
conjunction with an air
-
conditioning appliance shall be installed in accordance 
with the manufacturer’s instructions.
908.2 Access. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with ready access.
908.3 Location. 
Cooling towers
, evaporative condensers and fluid coolers shall be located to prevent the discharge 
vapor plumes from entering occupied spaces. Plume discharges shall be not less than 5 feet (1524 mm) above or 20 
feet (6096 mm) away from any ventilation inlet to a buildi
ng. Location on the property shall be as required for build-
ings in accordance with the 
New York City
Building Code
.
908.3.1 Indoor.
Cooling towers, evaporative condensers and fluid coolers located inside of buildings shall be 
constructed of noncombustible 
materials including fill and drift eliminators.
908.3.2 Outside.
Cooling towers shall be constructed of noncombustible materials.
Exceptions:
1.
Fill and drift eliminators of limited combustible materials may be considered noncombustible if the cool-
ing to
wers are provided with automatic sprinkler protection in compliance with Chapter 9 of the 
New York 
City Building Code
.
2.
Fill and drift eliminators for any individual cooling tower cell may be made of limited combustible mate-
rials provided all the followi
ng conditions are met:
2.1.
The cooling tower is located on a building of construction Types IA or IB of the 
New York City 
Building Code
.
2.2.
The cooling tower cell is located at least 30 feet (9144 mm) away from windows or fresh air intakes 
which are at 
an elevation above the roof on which the cooling tower is located, whether in the same 
building or in an adjoining building.
2.3.
The cooling tower cell is located not less than 15 feet (4572 mm) from the lot line.
2.4.
The cooling tower cell is located no
t less than 10 feet (3048 mm) from any chimney, except that the 
distance shall not be less than 20 feet (6096 mm) from a chimney venting products of combustion 
other than from gas
-
or oil
-
fired appliances, whether on the same or an adjoining building.
908.
4 Support and anchorage.   
Supports for cooling towers, evaporative condensers and fluid coolers shall be de-
signed in accordance with the 
New York City
Building Code. 
Seismic restraints shall be as required by the 
New York 
City
Building Code
. Adequate vibra
tion isolation shall be provided in accordance with the manufacturer’s guidelines 
and as required for the supporting structure, and in accordance with Sections 313.3.7 and 313.3.8.
908.5 Water supply. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with an approved 
water supply, sized for peak demand. The quality of water shall be provided in accordance with the equipment man-
ufacturer’s recommendations. The piping system and p
rotection of the potable water supply system shall be installed 
as required by the 
New York City
Plumbing Code
.
908.6 Drainage. 
Drains, overflows and blowdown provisions shall be indirectly connected to an approved disposal 
location. Discharge of 
chemical waste shall be approved by the appropriate regulatory authority.
908.7 Refrigerants and hazardous fluids. 
Heat exchange equipment that contains a refrigerant and that is part of a 
closed refrigeration system shall comply with Chapter 11. Heat 
exch
ange 
equipment containing heat transfer fluids 
SPECIFIC APPLIANCES AND EQUIPMENT
which are combustible or hazardous shall comply with the 
New York City
Fire Code
. Flammable heat transfer fluids 
are prohibited
.
908.8 Cooling towers. 
Cooling towers, both open circuit and closed circuit type,
and evaporative condensers shall 
comply with Sections 908.8.1 and 908.8.2.
908.8.1 Conductivity or flow
-
based control of cycles of concentration. 
Cooling towers and evaporative conden-
sers shall include controls that automate system bleed based on conducti
vity, fraction of metered makeup volume, 
metered bleed volume, recirculating pump run time or bleed time.
908.8.2 Drift eliminators. 
Cooling towers and evaporative condensers shall be equipped with drift eliminators that 
have a maximum drift rate of 0.005 
percent of the circulated water flow rate as established in the equipment’s 
design specifications.
‡‡‡
908.9
Additional requirements. 
The installation and maintenance of all cooling towers, evaporative condensers, 
and fluid coolers shall comply with the req
uirements of Article 317 of Chapter 3 of Title 
28 
of the 
Administrative 
Code
.
SECTION 
MC 
909
VENTED WALL FURNACES
909.1 General. 
Vented wall furnaces shall be installed in accordance with their listing and the manufacturer’s instruc-
tions. 
Oil
-
fired furnaces shall be tested in accordance with UL 730.
909.2 Location. 
Vented wall furnaces shall be located so as not to cause a fire hazard to walls, floors, combustible 
furnishings or doors. Vented wall furnaces installed between bathrooms and ad
joining rooms shall not circulate air 
from bathrooms to other parts of the building.
909.3 Door swing. 
Vented wall furnaces shall be located so that a door cannot swing within 12 inches (304.8 mm) of 
an air inlet or air outlet of such furnace measured at r
ight angles to the opening. Doorstops or door closers shall not 
be installed to obtain this clearance.
909.4 Ducts prohibited. 
Ducts shall not be attached to wall furnaces. Casing extension boots shall not be installed 
unless listed as part of the applianc
e.
909.5 Manual shutoff valve. 
A manual shutoff valve shall be installed ahead of all controls.
909.6 Access. 
Vented wall furnaces shall be provided with access for cleaning of heating surfaces, removal of burners, 
replacement of sections, motors, controls
, filters and other working parts, and for adjustments and lubrication of parts 
requiring such attention. Panels, grilles and access doors that must be removed for normal servicing operations shall 
not be attached to the building construction.
SECTION 
MC 
9
10
FLOOR FURNACES
910.1 General. 
Floor furnaces shall be installed in accordance with their listing and the manufacturer’s instructions. 
Oil
-
fired furnaces shall be tested in accordance with UL 729.
Unvented floor furnaces are prohibited.
910.2 Placement. 
Floor furnaces shall not be installed in 
any corridor, in 
the floor of any aisle or passageway of any 
auditorium, public hall, place of assembly, or in any egress element from any such room or space.
With the exception of wall register models, a floor furn
ace shall not be placed closer than 6 inches (152.4 mm) to 
the nearest wall, and wall register models shall not be placed closer than 6 inches (152.4 mm) to a corner.
The furnace shall be placed such that a drapery or similar combustible object will not be
nearer than 12 inches 
(304.8 mm) to any portion of the register of the furnace. Floor furnaces shall not be installed in concrete floor con-
struction built on grade. The controlling thermostat for a floor furnace shall be located within the same room or sp
ace 
as the floor furnace or shall be located in an adjacent room or space that is permanently open to the room or space 
containing the floor furnace.
Floor furnaces shall be located so as to be accessible. Floor furnaces shall be installed 
SPECIFIC APPLIANCES AND EQUIPMENT
only in floors o
f noncombustible construction having at least a 2
-
hour fire rating, except as where required for one
-
and two
-
family dwellings.
910.3 Bracing. 
The floor around the furnace shall be braced and headed with a support framework design in accord-
ance with the 
Ne
w York City
Building Code
.
910.4 Clearance. 
The lowest portion of the floor furnace shall have not less than a 6
-
inch (152.4 mm) clearance from 
the grade level; except where the lower 6
-
inch (152.4 mm) portion of the floor furnace is sealed by the 
manufacturer 
to prevent entrance of water, the minimum clearance shall be reduced to not less than 2 inches (50.8 mm). Where 
these clearances are not present, the ground below and to the sides shall be excavated to form a pit under the furnace 
so that the 
required clearance is provided beneath the lowest portion of the furnace. A 12
-
inch (304.8 mm) minimum 
clearance shall be provided on all sides except the control side, which shall have an 18
-
inch (457.2 mm) minimum 
clearance.
910.5 Enclosures.
Enclosures 
of floor furnaces shall be constructed entirely of noncombustible materials with a fire
-
resistance rating of at least 1 hour and shall be provided with adequate outdoor air to ensure proper combustion. The 
enclosure shall be provided with adequate means of
access for servicing the furnace.
910.6 Duct temperature.
The outlet duct temperature of warm air heating furnaces shall not be greater than 250°F 
(121.1°C).
910.7 One
-
and two
-
family dwellings.
Floor furnace enclosures shall be constructed of noncombust
ible materials 
with a fire
-
resistance rating of at least 1 hour. Means shall be provided for supporting the furnace when the grille is 
removed. Clearances shall be provided as per NFPA 54.
SECTION 
MC 
911
DUCT FURNACES AND HEATERS
911.1 General. 
Duct furnac
es and heaters shall be installed in accordance with the manufacturer’s instructions. Elec-
tric 
furnaces and duct heaters
shall
comply with UL 
1995 or UL 1996, as applicable. Unvented fuel
-
fired duct fur-
naces are prohibited
.
911.2 Access panels.
Ducts conne
cted to duct furnaces shall have removable access panels on both the upstream and 
downstream sides of the furnace.
911.3 Location of draft hood and controls.
The controls, combustion air inlets and draft hoods for duct furnaces 
shall be located outside of 
the ducts. The draft hood shall be located in the same enclosure from which combustion 
air is taken.
911.4 Circulating air.
Where a duct furnace is installed so that supply ducts convey air to areas outside the space 
containing the furnace, the 
return air shall also be conveyed by a duct(s) sealed to the furnace casing and terminating 
outside the space containing the furnace. The duct furnace shall be installed on the positive pressure side of the 
circulating air blower.
911.5 Duct temperature.
T
he outlet duct temperature of duct furnaces shall not be greater than 250°F (121.1°C).
SECTION 
MC 
912
INFRARED RADIANT HEATERS
912.1 General. 
Electric infrared radiant heaters shall comply with UL 499.
912.2 Support. 
Infrared radiant heaters shall be fixed
in a position independent of fuel and electric supply lines. 
Hangers and brackets shall be noncombustible material.
912.3 Clearances. 
Heaters shall be installed with clearances from combustible material in accordance with the man-
ufacturer’s instructions.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
913
CLOTHES DRYERS
913.1 General. 
Clothes dryers shall be installed in accordance with the manufacturer’s instructions and shall comply 
with the following as applicable: 
1.
Electric commercial clothes dryers shall be tested in accordance with U
L 1240. 
2.
Electric residential clothes dryers shall be tested in accordance with UL 2158. 
3.
Electric coin
-
, ticket
-
, or card
-
operated clothes dryers shall be tested in accordance with UL 2158.
913.2 Exhaust required. 
Clothes dryers shall be exhausted i
n accordance with Section 504.
Exception:
Electric clothes dryers provided with a condensate drain. Spaces containing such dryers shall be pro-
vided with transfer air openings or other approved means to provide adequate air exchanges with adjacent spaces.
9
13.3 Clearances. 
Clothes dryers shall be installed with clearance to combustibles in accordance with the manufac-
turer’s instructions.
SECTION 
MC 
914
SAUNA HEATERS
914.1 Location and protection. 
Sauna heaters shall be located so as to minimize the possibili
ty of accidental contact 
by a person in the room.
914.1.1 Guards. 
Sauna heaters shall be protected from accidental contact by an approved guard or barrier of ma-
terial having a low coefficient of thermal conductivity. The guard shall not substantially affec
t the transfer of heat 
from the heater to the room.
914.2 Installation. 
Sauna heaters shall be listed and labeled in accordance with UL 875 and shall be installed in 
accordance with their listing and the manufacturer’s instructions.
914.3 Access. 
Panels, g
rilles and access doors that are required to be removed for normal servicing operations shall 
not be attached to the building.
914.4 Heat and time controls. 
Sauna heaters shall be equipped with a thermostat that will limit room temperature to 
194°F (90°C).
If the thermostat is not an integral part of the sauna heater, the heat
-
sensing element shall be located 
within 6 inches (152.4 mm) of the ceiling. If the heat
-
sensing element is a capillary tube and bulb, the assembly shall 
be attached to the wall or oth
er support, and shall be protected against physical damage.
914.4.1 Timers. 
A timer, if provided to control main burner operation, shall have a maximum operating time of 1 
hour. The control for the timer shall be located outside the sauna room.
914.5 
Sauna room. 
A ventilation opening into the sauna room shall be provided. The opening shall be not less than 
4 inches by 8 inches (101.6 mm by 203.2 mm) located near the top of the door into the sauna room.
914.5.1 Warning notice. 
The following permanent no
tice, constructed of approved material, shall be mechanically 
attached to the sauna room on the outside:
WARNING: DO NOT EXCEED 30 MINUTES IN SAUNA. EXCESSIVE EXPOSURE CAN BE HARMFUL 
TO HEALTH. ANY PERSON WITH POOR HEALTH SHOULD CONSULT A PHYSICIAN BEFORE 
US-
ING SAUNA.
The words shall contrast with the background and the wording shall be in letters not less than
1
/
4
-
inch (6.4 mm) 
high.
Exception: 
This section shall not apply to one
-
and two
-
family dwellings.
SECTION 
MC 
915
ENGINE AND GAS TURBINE
-
POWERED EQUI
PMENT AND APPLIANCES
‡‡‡ Chapter 9 was amended by 
Local Law 
77 
of 2023
. This law has an effective
 date of June 10, 2023.
CHAPTER 9
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION MC 901
GENERAL
901.1 Scope. 
This chapter shall govern the approval, design, installation, construction, maintenance, alteration and 
repair of the appliances and equipment specific
ally identified herein and factory
-
built fireplaces. The approval, design, 
installation, construction, maintenance, alteration and repair of 
gas
-
fired
appliances shall be regulated by the 
New 
York City
Fuel Gas Code
. 
901.2 General. 
The 
requirements of this chapter shall apply to the mechanical equipment and appliances regulated by 
this chapter, in addition to the other requirements of this code, and installed in accordance with the requirements of 
NFPA 31, NFPA 54 and NFPA 211
. 
901.3 Sol
id fuel
-
burning fireplaces and appliances.
All solid fuel
-
burning fireplaces and appliances shall be in-
stalled, altered and maintained in buildings in conformity with the applicable provisions of the 
New York City Air 
Pollution Control
Code
and no new solid fuel
-
burning fireplaces or appliances shall be permitted except those that 
burn the types of fuel allowed by such code.
901.4 Hazardous locations. 
Fireplaces and solid fuel
-
burning appliances shall not be installed in hazardous locations.
901.5 Inspectio
n of solid fuel
-
burning heating appliances, chimneys and flues.
Inspections of solid fuel
-
burning 
heating appliances, chimneys and flues shall be in accordance with the 
New York City Building Code
.
901.6 Fireplaces.
Fireplaces (solid
-
fuel
-
type or ANSI Z21.50) shall be installed with tight
-
fitting noncombustible 
fireplace doors to control infiltration losses in construction types listed here:
1.
Masonry or factory
-
built fireplaces designed to allow an open burn.
2.
Decorative appliances (ANSI Z21.60 gas
-
log 
style unit) installed in a vented solid fuel fireplace.
3.
Vented decorative gas fireplace appliances (ANSI Z21.50 unit).
Fireplaces shall be provided with a source of combustion air as required by the fireplace construction provisions of 
the 
New York City
Building Code
and Chapter 7 of this code.
SECTION 
MC 902
MASONRY FIREPLACES
902.1 General. 
Masonry fireplaces shall be constructed in accordance with the 
New York City Building Code
. 
902.2 Fireplace accessories. 
Listed and labeled fireplace accessories shall be installed in accordance with the condi-
tions of the listing and the manufacturer’s instructions. Fireplace accessories shall comply with UL 907.
SECTION MC 903
FACTORY
-
BUILT FIREPLACES
903.1 General. 
Factory
-
built fireplaces shall be li
sted and labeled and shall be installed in accordance with the con-
ditions of the listing. Factory
-
built fireplaces shall be tested in accordance with UL 127.
SPECIFIC APPLIANCES AND EQUIPMENT
903.2 Hearth extensions. 
Hearth extensions of approved factory
-
built fireplaces shall be installed
in accordance with 
the listing of the fireplace. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed 
and labeled hearth extensions shall comply with UL 1618.
903.3 Unvented gas log heaters.
The installation of 
unv
ented gas
-
fired space heaters, gas stoves, gas logs, gas fire-
places and gas 
fireplace 
inserts is prohibited
.
903.4 Gasketed fireplace doors. 
A gasketed fireplace door shall not be installed on a factory
-
built fireplace except 
where the fireplace system has
been specifically tested, listed and labeled for such use in accordance with UL 127.
903.5 Flues.
Separate flues shall be provided for every
fireplace
and 
fireplace 
stove.
903.6 Combustion air supply.
All installations of
factory
-
built 
fireplaces shall co
mply
with 
the requirements of the 
New York City Energy Conservation Code
concerning combustion air supply
.
SECTION 
MC 
904
PELLET FUEL
-
BURNING APPLIANCES
904.1 General. 
Pellet fuel
-
burning appliances shall be listed and labeled in accordance with ASTM E 
1509 and shall 
be installed in accordance with the terms of the listing.
If permitted, such appliances shall be operated in accordance 
with the 
New York City Air Pollution Control Code.
SECTION 
MC 
905
FIREPLACE STOVES AND ROOM HEATERS
905.1 General. 
Fireplace stoves and solid
-
fuel
-
type room heaters shall be listed and labeled and shall be installed in 
accordance with the conditions of the listing. Fireplace stoves shall be tested in accordance with UL 737. Solid
-
fuel
-
type room heaters s
hall be tested in accordance with UL 1482. Fireplace inserts intended for installation in fireplaces 
shall be listed and labeled in accordance with the requirements of UL 1482 and shall be installed in accordance with 
the manufacturer’s instructions.
905.2
Connection to fireplace. 
The connection of solid fuel appliances to chimney flues serving fireplaces shall 
comply with Sections 801.7 and 801.10.
905.3 Hearth extensions. 
Hearth extensions for fireplace stoves shall be installed in accordance with the lis
ting of 
the fireplace stove. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed and 
labeled hearth extensions shall comply with UL 1618.
905.4 Air pollution.
All 
fireplace stoves 
and room heaters shall comply with
the requirements of the 
New York City 
Air Pollution Control Code
.
905.5 Combustion air supply.
All fireplace stoves and room heaters shall comply with the requirements of the 
New 
York City Energy Conservation Code
concerning combustion air supply.
905.6 F
lues.
Separate flues and independent combustion air source 
shall be 
provided for every fireplace stove and 
room heater. Combustion air shall be provided
in accordance with the 
manufacturer’s recommendations and Chapter 
7
.
SECTION 
MC 
906
FACTORY
-
BUILT BARBECUE APPLIANCES
‡‡‡
906.1 General. 
Factory
-
built barbecue appliances shall be listed and labeled for the use intended and shall be 
installed in accordance with the manufacturer’s instructions, this chapter
, 
the 
New York City
Fuel Gas Code
,
and 
Chapters 3, 5, 7, and 8 of this code
. 
The construction and installation of chimneys serving barbeque appliances shall 
comply with all construction and installation requirements of fireplaces.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
907
INCINERATORS AND CREMATORIES
907.1 General. 
Incinerators and crematories shall be listed and labeled in accordance with UL 791 and 
NFPA 82 and 
shall be installed in accordance with the manufacturer’s
instructions.
907.2 Compliance.
All incinerators and crematories shall be installed, altered and mai
ntained in buildings in con-
formity with the applicable provisions of the 
Administrative Code
and the 
New York City Air Pollution Control Code
.
SECTION 
MC 
908
COOLING TOWERS, EVAPORATIVE CONDENSERS AND FLUID COOLERS
908.1 General. 
A cooling tower used in 
conjunction with an air
-
conditioning appliance shall be installed in accordance 
with the manufacturer’s instructions.
908.2 Access. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with ready access.
908.3 Location. 
Cooling towers
, evaporative condensers and fluid coolers shall be located to prevent the discharge 
vapor plumes from entering occupied spaces. Plume discharges shall be not less than 5 feet (1524 mm) above or 20 
feet (6096 mm) away from any ventilation inlet to a buildi
ng. Location on the property shall be as required for build-
ings in accordance with the 
New York City
Building Code
.
908.3.1 Indoor.
Cooling towers, evaporative condensers and fluid coolers located inside of buildings shall be 
constructed of noncombustible 
materials including fill and drift eliminators.
908.3.2 Outside.
Cooling towers shall be constructed of noncombustible materials.
Exceptions:
1.
Fill and drift eliminators of limited combustible materials may be considered noncombustible if the cool-
ing to
wers are provided with automatic sprinkler protection in compliance with Chapter 9 of the 
New York 
City Building Code
.
2.
Fill and drift eliminators for any individual cooling tower cell may be made of limited combustible mate-
rials provided all the followi
ng conditions are met:
2.1.
The cooling tower is located on a building of construction Types IA or IB of the 
New York City 
Building Code
.
2.2.
The cooling tower cell is located at least 30 feet (9144 mm) away from windows or fresh air intakes 
which are at 
an elevation above the roof on which the cooling tower is located, whether in the same 
building or in an adjoining building.
2.3.
The cooling tower cell is located not less than 15 feet (4572 mm) from the lot line.
2.4.
The cooling tower cell is located no
t less than 10 feet (3048 mm) from any chimney, except that the 
distance shall not be less than 20 feet (6096 mm) from a chimney venting products of combustion 
other than from gas
-
or oil
-
fired appliances, whether on the same or an adjoining building.
908.
4 Support and anchorage.   
Supports for cooling towers, evaporative condensers and fluid coolers shall be de-
signed in accordance with the 
New York City
Building Code. 
Seismic restraints shall be as required by the 
New York 
City
Building Code
. Adequate vibra
tion isolation shall be provided in accordance with the manufacturer’s guidelines 
and as required for the supporting structure, and in accordance with Sections 313.3.7 and 313.3.8.
908.5 Water supply. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with an approved 
water supply, sized for peak demand. The quality of water shall be provided in accordance with the equipment man-
ufacturer’s recommendations. The piping system and p
rotection of the potable water supply system shall be installed 
as required by the 
New York City
Plumbing Code
.
908.6 Drainage. 
Drains, overflows and blowdown provisions shall be indirectly connected to an approved disposal 
location. Discharge of 
chemical waste shall be approved by the appropriate regulatory authority.
908.7 Refrigerants and hazardous fluids. 
Heat exchange equipment that contains a refrigerant and that is part of a 
closed refrigeration system shall comply with Chapter 11. Heat 
exch
ange 
equipment containing heat transfer fluids 
SPECIFIC APPLIANCES AND EQUIPMENT
which are combustible or hazardous shall comply with the 
New York City
Fire Code
. Flammable heat transfer fluids 
are prohibited
.
908.8 Cooling towers. 
Cooling towers, both open circuit and closed circuit type,
and evaporative condensers shall 
comply with Sections 908.8.1 and 908.8.2.
908.8.1 Conductivity or flow
-
based control of cycles of concentration. 
Cooling towers and evaporative conden-
sers shall include controls that automate system bleed based on conducti
vity, fraction of metered makeup volume, 
metered bleed volume, recirculating pump run time or bleed time.
908.8.2 Drift eliminators. 
Cooling towers and evaporative condensers shall be equipped with drift eliminators that 
have a maximum drift rate of 0.005 
percent of the circulated water flow rate as established in the equipment’s 
design specifications.
‡‡‡
908.9
Additional requirements. 
The installation and maintenance of all cooling towers, evaporative condensers, 
and fluid coolers shall comply with the req
uirements of Article 317 of Chapter 3 of Title 
28 
of the 
Administrative 
Code
.
SECTION 
MC 
909
VENTED WALL FURNACES
909.1 General. 
Vented wall furnaces shall be installed in accordance with their listing and the manufacturer’s instruc-
tions. 
Oil
-
fired furnaces shall be tested in accordance with UL 730.
909.2 Location. 
Vented wall furnaces shall be located so as not to cause a fire hazard to walls, floors, combustible 
furnishings or doors. Vented wall furnaces installed between bathrooms and ad
joining rooms shall not circulate air 
from bathrooms to other parts of the building.
909.3 Door swing. 
Vented wall furnaces shall be located so that a door cannot swing within 12 inches (304.8 mm) of 
an air inlet or air outlet of such furnace measured at r
ight angles to the opening. Doorstops or door closers shall not 
be installed to obtain this clearance.
909.4 Ducts prohibited. 
Ducts shall not be attached to wall furnaces. Casing extension boots shall not be installed 
unless listed as part of the applianc
e.
909.5 Manual shutoff valve. 
A manual shutoff valve shall be installed ahead of all controls.
909.6 Access. 
Vented wall furnaces shall be provided with access for cleaning of heating surfaces, removal of burners, 
replacement of sections, motors, controls
, filters and other working parts, and for adjustments and lubrication of parts 
requiring such attention. Panels, grilles and access doors that must be removed for normal servicing operations shall 
not be attached to the building construction.
SECTION 
MC 
9
10
FLOOR FURNACES
910.1 General. 
Floor furnaces shall be installed in accordance with their listing and the manufacturer’s instructions. 
Oil
-
fired furnaces shall be tested in accordance with UL 729.
Unvented floor furnaces are prohibited.
910.2 Placement. 
Floor furnaces shall not be installed in 
any corridor, in 
the floor of any aisle or passageway of any 
auditorium, public hall, place of assembly, or in any egress element from any such room or space.
With the exception of wall register models, a floor furn
ace shall not be placed closer than 6 inches (152.4 mm) to 
the nearest wall, and wall register models shall not be placed closer than 6 inches (152.4 mm) to a corner.
The furnace shall be placed such that a drapery or similar combustible object will not be
nearer than 12 inches 
(304.8 mm) to any portion of the register of the furnace. Floor furnaces shall not be installed in concrete floor con-
struction built on grade. The controlling thermostat for a floor furnace shall be located within the same room or sp
ace 
as the floor furnace or shall be located in an adjacent room or space that is permanently open to the room or space 
containing the floor furnace.
Floor furnaces shall be located so as to be accessible. Floor furnaces shall be installed 
SPECIFIC APPLIANCES AND EQUIPMENT
only in floors o
f noncombustible construction having at least a 2
-
hour fire rating, except as where required for one
-
and two
-
family dwellings.
910.3 Bracing. 
The floor around the furnace shall be braced and headed with a support framework design in accord-
ance with the 
Ne
w York City
Building Code
.
910.4 Clearance. 
The lowest portion of the floor furnace shall have not less than a 6
-
inch (152.4 mm) clearance from 
the grade level; except where the lower 6
-
inch (152.4 mm) portion of the floor furnace is sealed by the 
manufacturer 
to prevent entrance of water, the minimum clearance shall be reduced to not less than 2 inches (50.8 mm). Where 
these clearances are not present, the ground below and to the sides shall be excavated to form a pit under the furnace 
so that the 
required clearance is provided beneath the lowest portion of the furnace. A 12
-
inch (304.8 mm) minimum 
clearance shall be provided on all sides except the control side, which shall have an 18
-
inch (457.2 mm) minimum 
clearance.
910.5 Enclosures.
Enclosures 
of floor furnaces shall be constructed entirely of noncombustible materials with a fire
-
resistance rating of at least 1 hour and shall be provided with adequate outdoor air to ensure proper combustion. The 
enclosure shall be provided with adequate means of
access for servicing the furnace.
910.6 Duct temperature.
The outlet duct temperature of warm air heating furnaces shall not be greater than 250°F 
(121.1°C).
910.7 One
-
and two
-
family dwellings.
Floor furnace enclosures shall be constructed of noncombust
ible materials 
with a fire
-
resistance rating of at least 1 hour. Means shall be provided for supporting the furnace when the grille is 
removed. Clearances shall be provided as per NFPA 54.
SECTION 
MC 
911
DUCT FURNACES AND HEATERS
911.1 General. 
Duct furnac
es and heaters shall be installed in accordance with the manufacturer’s instructions. Elec-
tric 
furnaces and duct heaters
shall
comply with UL 
1995 or UL 1996, as applicable. Unvented fuel
-
fired duct fur-
naces are prohibited
.
911.2 Access panels.
Ducts conne
cted to duct furnaces shall have removable access panels on both the upstream and 
downstream sides of the furnace.
911.3 Location of draft hood and controls.
The controls, combustion air inlets and draft hoods for duct furnaces 
shall be located outside of 
the ducts. The draft hood shall be located in the same enclosure from which combustion 
air is taken.
911.4 Circulating air.
Where a duct furnace is installed so that supply ducts convey air to areas outside the space 
containing the furnace, the 
return air shall also be conveyed by a duct(s) sealed to the furnace casing and terminating 
outside the space containing the furnace. The duct furnace shall be installed on the positive pressure side of the 
circulating air blower.
911.5 Duct temperature.
T
he outlet duct temperature of duct furnaces shall not be greater than 250°F (121.1°C).
SECTION 
MC 
912
INFRARED RADIANT HEATERS
912.1 General. 
Electric infrared radiant heaters shall comply with UL 499.
912.2 Support. 
Infrared radiant heaters shall be fixed
in a position independent of fuel and electric supply lines. 
Hangers and brackets shall be noncombustible material.
912.3 Clearances. 
Heaters shall be installed with clearances from combustible material in accordance with the man-
ufacturer’s instructions.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
913
CLOTHES DRYERS
913.1 General. 
Clothes dryers shall be installed in accordance with the manufacturer’s instructions and shall comply 
with the following as applicable: 
1.
Electric commercial clothes dryers shall be tested in accordance with U
L 1240. 
2.
Electric residential clothes dryers shall be tested in accordance with UL 2158. 
3.
Electric coin
-
, ticket
-
, or card
-
operated clothes dryers shall be tested in accordance with UL 2158.
913.2 Exhaust required. 
Clothes dryers shall be exhausted i
n accordance with Section 504.
Exception:
Electric clothes dryers provided with a condensate drain. Spaces containing such dryers shall be pro-
vided with transfer air openings or other approved means to provide adequate air exchanges with adjacent spaces.
9
13.3 Clearances. 
Clothes dryers shall be installed with clearance to combustibles in accordance with the manufac-
turer’s instructions.
SECTION 
MC 
914
SAUNA HEATERS
914.1 Location and protection. 
Sauna heaters shall be located so as to minimize the possibili
ty of accidental contact 
by a person in the room.
914.1.1 Guards. 
Sauna heaters shall be protected from accidental contact by an approved guard or barrier of ma-
terial having a low coefficient of thermal conductivity. The guard shall not substantially affec
t the transfer of heat 
from the heater to the room.
914.2 Installation. 
Sauna heaters shall be listed and labeled in accordance with UL 875 and shall be installed in 
accordance with their listing and the manufacturer’s instructions.
914.3 Access. 
Panels, g
rilles and access doors that are required to be removed for normal servicing operations shall 
not be attached to the building.
914.4 Heat and time controls. 
Sauna heaters shall be equipped with a thermostat that will limit room temperature to 
194°F (90°C).
If the thermostat is not an integral part of the sauna heater, the heat
-
sensing element shall be located 
within 6 inches (152.4 mm) of the ceiling. If the heat
-
sensing element is a capillary tube and bulb, the assembly shall 
be attached to the wall or oth
er support, and shall be protected against physical damage.
914.4.1 Timers. 
A timer, if provided to control main burner operation, shall have a maximum operating time of 1 
hour. The control for the timer shall be located outside the sauna room.
914.5 
Sauna room. 
A ventilation opening into the sauna room shall be provided. The opening shall be not less than 
4 inches by 8 inches (101.6 mm by 203.2 mm) located near the top of the door into the sauna room.
914.5.1 Warning notice. 
The following permanent no
tice, constructed of approved material, shall be mechanically 
attached to the sauna room on the outside:
WARNING: DO NOT EXCEED 30 MINUTES IN SAUNA. EXCESSIVE EXPOSURE CAN BE HARMFUL 
TO HEALTH. ANY PERSON WITH POOR HEALTH SHOULD CONSULT A PHYSICIAN BEFORE 
US-
ING SAUNA.
The words shall contrast with the background and the wording shall be in letters not less than
1
/
4
-
inch (6.4 mm) 
high.
Exception: 
This section shall not apply to one
-
and two
-
family dwellings.
SECTION 
MC 
915
ENGINE AND GAS TURBINE
-
POWERED EQUI
PMENT AND APPLIANCES
‡‡‡ Chapter 9 was amended by 
Local Law 
77 
of 2023
. This law has an effective
 date of June 10, 2023.
CHAPTER 9
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION MC 901
GENERAL
901.1 Scope. 
This chapter shall govern the approval, design, installation, construction, maintenance, alteration and 
repair of the appliances and equipment specific
ally identified herein and factory
-
built fireplaces. The approval, design, 
installation, construction, maintenance, alteration and repair of 
gas
-
fired
appliances shall be regulated by the 
New 
York City
Fuel Gas Code
. 
901.2 General. 
The 
requirements of this chapter shall apply to the mechanical equipment and appliances regulated by 
this chapter, in addition to the other requirements of this code, and installed in accordance with the requirements of 
NFPA 31, NFPA 54 and NFPA 211
. 
901.3 Sol
id fuel
-
burning fireplaces and appliances.
All solid fuel
-
burning fireplaces and appliances shall be in-
stalled, altered and maintained in buildings in conformity with the applicable provisions of the 
New York City Air 
Pollution Control
Code
and no new solid fuel
-
burning fireplaces or appliances shall be permitted except those that 
burn the types of fuel allowed by such code.
901.4 Hazardous locations. 
Fireplaces and solid fuel
-
burning appliances shall not be installed in hazardous locations.
901.5 Inspectio
n of solid fuel
-
burning heating appliances, chimneys and flues.
Inspections of solid fuel
-
burning 
heating appliances, chimneys and flues shall be in accordance with the 
New York City Building Code
.
901.6 Fireplaces.
Fireplaces (solid
-
fuel
-
type or ANSI Z21.50) shall be installed with tight
-
fitting noncombustible 
fireplace doors to control infiltration losses in construction types listed here:
1.
Masonry or factory
-
built fireplaces designed to allow an open burn.
2.
Decorative appliances (ANSI Z21.60 gas
-
log 
style unit) installed in a vented solid fuel fireplace.
3.
Vented decorative gas fireplace appliances (ANSI Z21.50 unit).
Fireplaces shall be provided with a source of combustion air as required by the fireplace construction provisions of 
the 
New York City
Building Code
and Chapter 7 of this code.
SECTION 
MC 902
MASONRY FIREPLACES
902.1 General. 
Masonry fireplaces shall be constructed in accordance with the 
New York City Building Code
. 
902.2 Fireplace accessories. 
Listed and labeled fireplace accessories shall be installed in accordance with the condi-
tions of the listing and the manufacturer’s instructions. Fireplace accessories shall comply with UL 907.
SECTION MC 903
FACTORY
-
BUILT FIREPLACES
903.1 General. 
Factory
-
built fireplaces shall be li
sted and labeled and shall be installed in accordance with the con-
ditions of the listing. Factory
-
built fireplaces shall be tested in accordance with UL 127.
SPECIFIC APPLIANCES AND EQUIPMENT
903.2 Hearth extensions. 
Hearth extensions of approved factory
-
built fireplaces shall be installed
in accordance with 
the listing of the fireplace. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed 
and labeled hearth extensions shall comply with UL 1618.
903.3 Unvented gas log heaters.
The installation of 
unv
ented gas
-
fired space heaters, gas stoves, gas logs, gas fire-
places and gas 
fireplace 
inserts is prohibited
.
903.4 Gasketed fireplace doors. 
A gasketed fireplace door shall not be installed on a factory
-
built fireplace except 
where the fireplace system has
been specifically tested, listed and labeled for such use in accordance with UL 127.
903.5 Flues.
Separate flues shall be provided for every
fireplace
and 
fireplace 
stove.
903.6 Combustion air supply.
All installations of
factory
-
built 
fireplaces shall co
mply
with 
the requirements of the 
New York City Energy Conservation Code
concerning combustion air supply
.
SECTION 
MC 
904
PELLET FUEL
-
BURNING APPLIANCES
904.1 General. 
Pellet fuel
-
burning appliances shall be listed and labeled in accordance with ASTM E 
1509 and shall 
be installed in accordance with the terms of the listing.
If permitted, such appliances shall be operated in accordance 
with the 
New York City Air Pollution Control Code.
SECTION 
MC 
905
FIREPLACE STOVES AND ROOM HEATERS
905.1 General. 
Fireplace stoves and solid
-
fuel
-
type room heaters shall be listed and labeled and shall be installed in 
accordance with the conditions of the listing. Fireplace stoves shall be tested in accordance with UL 737. Solid
-
fuel
-
type room heaters s
hall be tested in accordance with UL 1482. Fireplace inserts intended for installation in fireplaces 
shall be listed and labeled in accordance with the requirements of UL 1482 and shall be installed in accordance with 
the manufacturer’s instructions.
905.2
Connection to fireplace. 
The connection of solid fuel appliances to chimney flues serving fireplaces shall 
comply with Sections 801.7 and 801.10.
905.3 Hearth extensions. 
Hearth extensions for fireplace stoves shall be installed in accordance with the lis
ting of 
the fireplace stove. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed and 
labeled hearth extensions shall comply with UL 1618.
905.4 Air pollution.
All 
fireplace stoves 
and room heaters shall comply with
the requirements of the 
New York City 
Air Pollution Control Code
.
905.5 Combustion air supply.
All fireplace stoves and room heaters shall comply with the requirements of the 
New 
York City Energy Conservation Code
concerning combustion air supply.
905.6 F
lues.
Separate flues and independent combustion air source 
shall be 
provided for every fireplace stove and 
room heater. Combustion air shall be provided
in accordance with the 
manufacturer’s recommendations and Chapter 
7
.
SECTION 
MC 
906
FACTORY
-
BUILT BARBECUE APPLIANCES
‡‡‡
906.1 General. 
Factory
-
built barbecue appliances shall be listed and labeled for the use intended and shall be 
installed in accordance with the manufacturer’s instructions, this chapter
, 
the 
New York City
Fuel Gas Code
,
and 
Chapters 3, 5, 7, and 8 of this code
. 
The construction and installation of chimneys serving barbeque appliances shall 
comply with all construction and installation requirements of fireplaces.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
907
INCINERATORS AND CREMATORIES
907.1 General. 
Incinerators and crematories shall be listed and labeled in accordance with UL 791 and 
NFPA 82 and 
shall be installed in accordance with the manufacturer’s
instructions.
907.2 Compliance.
All incinerators and crematories shall be installed, altered and mai
ntained in buildings in con-
formity with the applicable provisions of the 
Administrative Code
and the 
New York City Air Pollution Control Code
.
SECTION 
MC 
908
COOLING TOWERS, EVAPORATIVE CONDENSERS AND FLUID COOLERS
908.1 General. 
A cooling tower used in 
conjunction with an air
-
conditioning appliance shall be installed in accordance 
with the manufacturer’s instructions.
908.2 Access. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with ready access.
908.3 Location. 
Cooling towers
, evaporative condensers and fluid coolers shall be located to prevent the discharge 
vapor plumes from entering occupied spaces. Plume discharges shall be not less than 5 feet (1524 mm) above or 20 
feet (6096 mm) away from any ventilation inlet to a buildi
ng. Location on the property shall be as required for build-
ings in accordance with the 
New York City
Building Code
.
908.3.1 Indoor.
Cooling towers, evaporative condensers and fluid coolers located inside of buildings shall be 
constructed of noncombustible 
materials including fill and drift eliminators.
908.3.2 Outside.
Cooling towers shall be constructed of noncombustible materials.
Exceptions:
1.
Fill and drift eliminators of limited combustible materials may be considered noncombustible if the cool-
ing to
wers are provided with automatic sprinkler protection in compliance with Chapter 9 of the 
New York 
City Building Code
.
2.
Fill and drift eliminators for any individual cooling tower cell may be made of limited combustible mate-
rials provided all the followi
ng conditions are met:
2.1.
The cooling tower is located on a building of construction Types IA or IB of the 
New York City 
Building Code
.
2.2.
The cooling tower cell is located at least 30 feet (9144 mm) away from windows or fresh air intakes 
which are at 
an elevation above the roof on which the cooling tower is located, whether in the same 
building or in an adjoining building.
2.3.
The cooling tower cell is located not less than 15 feet (4572 mm) from the lot line.
2.4.
The cooling tower cell is located no
t less than 10 feet (3048 mm) from any chimney, except that the 
distance shall not be less than 20 feet (6096 mm) from a chimney venting products of combustion 
other than from gas
-
or oil
-
fired appliances, whether on the same or an adjoining building.
908.
4 Support and anchorage.   
Supports for cooling towers, evaporative condensers and fluid coolers shall be de-
signed in accordance with the 
New York City
Building Code. 
Seismic restraints shall be as required by the 
New York 
City
Building Code
. Adequate vibra
tion isolation shall be provided in accordance with the manufacturer’s guidelines 
and as required for the supporting structure, and in accordance with Sections 313.3.7 and 313.3.8.
908.5 Water supply. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with an approved 
water supply, sized for peak demand. The quality of water shall be provided in accordance with the equipment man-
ufacturer’s recommendations. The piping system and p
rotection of the potable water supply system shall be installed 
as required by the 
New York City
Plumbing Code
.
908.6 Drainage. 
Drains, overflows and blowdown provisions shall be indirectly connected to an approved disposal 
location. Discharge of 
chemical waste shall be approved by the appropriate regulatory authority.
908.7 Refrigerants and hazardous fluids. 
Heat exchange equipment that contains a refrigerant and that is part of a 
closed refrigeration system shall comply with Chapter 11. Heat 
exch
ange 
equipment containing heat transfer fluids 
SPECIFIC APPLIANCES AND EQUIPMENT
which are combustible or hazardous shall comply with the 
New York City
Fire Code
. Flammable heat transfer fluids 
are prohibited
.
908.8 Cooling towers. 
Cooling towers, both open circuit and closed circuit type,
and evaporative condensers shall 
comply with Sections 908.8.1 and 908.8.2.
908.8.1 Conductivity or flow
-
based control of cycles of concentration. 
Cooling towers and evaporative conden-
sers shall include controls that automate system bleed based on conducti
vity, fraction of metered makeup volume, 
metered bleed volume, recirculating pump run time or bleed time.
908.8.2 Drift eliminators. 
Cooling towers and evaporative condensers shall be equipped with drift eliminators that 
have a maximum drift rate of 0.005 
percent of the circulated water flow rate as established in the equipment’s 
design specifications.
‡‡‡
908.9
Additional requirements. 
The installation and maintenance of all cooling towers, evaporative condensers, 
and fluid coolers shall comply with the req
uirements of Article 317 of Chapter 3 of Title 
28 
of the 
Administrative 
Code
.
SECTION 
MC 
909
VENTED WALL FURNACES
909.1 General. 
Vented wall furnaces shall be installed in accordance with their listing and the manufacturer’s instruc-
tions. 
Oil
-
fired furnaces shall be tested in accordance with UL 730.
909.2 Location. 
Vented wall furnaces shall be located so as not to cause a fire hazard to walls, floors, combustible 
furnishings or doors. Vented wall furnaces installed between bathrooms and ad
joining rooms shall not circulate air 
from bathrooms to other parts of the building.
909.3 Door swing. 
Vented wall furnaces shall be located so that a door cannot swing within 12 inches (304.8 mm) of 
an air inlet or air outlet of such furnace measured at r
ight angles to the opening. Doorstops or door closers shall not 
be installed to obtain this clearance.
909.4 Ducts prohibited. 
Ducts shall not be attached to wall furnaces. Casing extension boots shall not be installed 
unless listed as part of the applianc
e.
909.5 Manual shutoff valve. 
A manual shutoff valve shall be installed ahead of all controls.
909.6 Access. 
Vented wall furnaces shall be provided with access for cleaning of heating surfaces, removal of burners, 
replacement of sections, motors, controls
, filters and other working parts, and for adjustments and lubrication of parts 
requiring such attention. Panels, grilles and access doors that must be removed for normal servicing operations shall 
not be attached to the building construction.
SECTION 
MC 
9
10
FLOOR FURNACES
910.1 General. 
Floor furnaces shall be installed in accordance with their listing and the manufacturer’s instructions. 
Oil
-
fired furnaces shall be tested in accordance with UL 729.
Unvented floor furnaces are prohibited.
910.2 Placement. 
Floor furnaces shall not be installed in 
any corridor, in 
the floor of any aisle or passageway of any 
auditorium, public hall, place of assembly, or in any egress element from any such room or space.
With the exception of wall register models, a floor furn
ace shall not be placed closer than 6 inches (152.4 mm) to 
the nearest wall, and wall register models shall not be placed closer than 6 inches (152.4 mm) to a corner.
The furnace shall be placed such that a drapery or similar combustible object will not be
nearer than 12 inches 
(304.8 mm) to any portion of the register of the furnace. Floor furnaces shall not be installed in concrete floor con-
struction built on grade. The controlling thermostat for a floor furnace shall be located within the same room or sp
ace 
as the floor furnace or shall be located in an adjacent room or space that is permanently open to the room or space 
containing the floor furnace.
Floor furnaces shall be located so as to be accessible. Floor furnaces shall be installed 
SPECIFIC APPLIANCES AND EQUIPMENT
only in floors o
f noncombustible construction having at least a 2
-
hour fire rating, except as where required for one
-
and two
-
family dwellings.
910.3 Bracing. 
The floor around the furnace shall be braced and headed with a support framework design in accord-
ance with the 
Ne
w York City
Building Code
.
910.4 Clearance. 
The lowest portion of the floor furnace shall have not less than a 6
-
inch (152.4 mm) clearance from 
the grade level; except where the lower 6
-
inch (152.4 mm) portion of the floor furnace is sealed by the 
manufacturer 
to prevent entrance of water, the minimum clearance shall be reduced to not less than 2 inches (50.8 mm). Where 
these clearances are not present, the ground below and to the sides shall be excavated to form a pit under the furnace 
so that the 
required clearance is provided beneath the lowest portion of the furnace. A 12
-
inch (304.8 mm) minimum 
clearance shall be provided on all sides except the control side, which shall have an 18
-
inch (457.2 mm) minimum 
clearance.
910.5 Enclosures.
Enclosures 
of floor furnaces shall be constructed entirely of noncombustible materials with a fire
-
resistance rating of at least 1 hour and shall be provided with adequate outdoor air to ensure proper combustion. The 
enclosure shall be provided with adequate means of
access for servicing the furnace.
910.6 Duct temperature.
The outlet duct temperature of warm air heating furnaces shall not be greater than 250°F 
(121.1°C).
910.7 One
-
and two
-
family dwellings.
Floor furnace enclosures shall be constructed of noncombust
ible materials 
with a fire
-
resistance rating of at least 1 hour. Means shall be provided for supporting the furnace when the grille is 
removed. Clearances shall be provided as per NFPA 54.
SECTION 
MC 
911
DUCT FURNACES AND HEATERS
911.1 General. 
Duct furnac
es and heaters shall be installed in accordance with the manufacturer’s instructions. Elec-
tric 
furnaces and duct heaters
shall
comply with UL 
1995 or UL 1996, as applicable. Unvented fuel
-
fired duct fur-
naces are prohibited
.
911.2 Access panels.
Ducts conne
cted to duct furnaces shall have removable access panels on both the upstream and 
downstream sides of the furnace.
911.3 Location of draft hood and controls.
The controls, combustion air inlets and draft hoods for duct furnaces 
shall be located outside of 
the ducts. The draft hood shall be located in the same enclosure from which combustion 
air is taken.
911.4 Circulating air.
Where a duct furnace is installed so that supply ducts convey air to areas outside the space 
containing the furnace, the 
return air shall also be conveyed by a duct(s) sealed to the furnace casing and terminating 
outside the space containing the furnace. The duct furnace shall be installed on the positive pressure side of the 
circulating air blower.
911.5 Duct temperature.
T
he outlet duct temperature of duct furnaces shall not be greater than 250°F (121.1°C).
SECTION 
MC 
912
INFRARED RADIANT HEATERS
912.1 General. 
Electric infrared radiant heaters shall comply with UL 499.
912.2 Support. 
Infrared radiant heaters shall be fixed
in a position independent of fuel and electric supply lines. 
Hangers and brackets shall be noncombustible material.
912.3 Clearances. 
Heaters shall be installed with clearances from combustible material in accordance with the man-
ufacturer’s instructions.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
913
CLOTHES DRYERS
913.1 General. 
Clothes dryers shall be installed in accordance with the manufacturer’s instructions and shall comply 
with the following as applicable: 
1.
Electric commercial clothes dryers shall be tested in accordance with U
L 1240. 
2.
Electric residential clothes dryers shall be tested in accordance with UL 2158. 
3.
Electric coin
-
, ticket
-
, or card
-
operated clothes dryers shall be tested in accordance with UL 2158.
913.2 Exhaust required. 
Clothes dryers shall be exhausted i
n accordance with Section 504.
Exception:
Electric clothes dryers provided with a condensate drain. Spaces containing such dryers shall be pro-
vided with transfer air openings or other approved means to provide adequate air exchanges with adjacent spaces.
9
13.3 Clearances. 
Clothes dryers shall be installed with clearance to combustibles in accordance with the manufac-
turer’s instructions.
SECTION 
MC 
914
SAUNA HEATERS
914.1 Location and protection. 
Sauna heaters shall be located so as to minimize the possibili
ty of accidental contact 
by a person in the room.
914.1.1 Guards. 
Sauna heaters shall be protected from accidental contact by an approved guard or barrier of ma-
terial having a low coefficient of thermal conductivity. The guard shall not substantially affec
t the transfer of heat 
from the heater to the room.
914.2 Installation. 
Sauna heaters shall be listed and labeled in accordance with UL 875 and shall be installed in 
accordance with their listing and the manufacturer’s instructions.
914.3 Access. 
Panels, g
rilles and access doors that are required to be removed for normal servicing operations shall 
not be attached to the building.
914.4 Heat and time controls. 
Sauna heaters shall be equipped with a thermostat that will limit room temperature to 
194°F (90°C).
If the thermostat is not an integral part of the sauna heater, the heat
-
sensing element shall be located 
within 6 inches (152.4 mm) of the ceiling. If the heat
-
sensing element is a capillary tube and bulb, the assembly shall 
be attached to the wall or oth
er support, and shall be protected against physical damage.
914.4.1 Timers. 
A timer, if provided to control main burner operation, shall have a maximum operating time of 1 
hour. The control for the timer shall be located outside the sauna room.
914.5 
Sauna room. 
A ventilation opening into the sauna room shall be provided. The opening shall be not less than 
4 inches by 8 inches (101.6 mm by 203.2 mm) located near the top of the door into the sauna room.
914.5.1 Warning notice. 
The following permanent no
tice, constructed of approved material, shall be mechanically 
attached to the sauna room on the outside:
WARNING: DO NOT EXCEED 30 MINUTES IN SAUNA. EXCESSIVE EXPOSURE CAN BE HARMFUL 
TO HEALTH. ANY PERSON WITH POOR HEALTH SHOULD CONSULT A PHYSICIAN BEFORE 
US-
ING SAUNA.
The words shall contrast with the background and the wording shall be in letters not less than
1
/
4
-
inch (6.4 mm) 
high.
Exception: 
This section shall not apply to one
-
and two
-
family dwellings.
SECTION 
MC 
915
ENGINE AND GAS TURBINE
-
POWERED EQUI
PMENT AND APPLIANCES
SPECIFIC APPLIANCES AND EQUIPMENT
915.1 General. 
The installation of liquid
-
fueled stationary internal combustion engines and gas turbines, including 
combustion air, 
exhaust, fuel storage and piping, shall meet the requirements of NFPA 37
and Chapters 7, 8, and 13 
of t
his code
. Stationary engine generator assemblies shall meet the requirements of UL 2200.
915.2 Powered equipment and appliances. 
Permanently installed equipment and appliances powered by internal 
combustion engines and turbines shall be installed in 
accordance with the manufacturer’s instructions and NFPA 37.
SECTION 
MC 
916
POOL AND SPA HEATERS
916.1 General. 
Pool and spa heaters shall be installed in accordance with the manufacturer’s instructions. Oil
-
fired 
pool and spa heaters shall be tested in ac
cordance with UL 726. Electric pool and spa heaters shall be tested in accord-
ance with UL 1261.
SECTION 
MC 
917
COOKING APPLIANCES
917.1 Cooking appliances. 
Cooking appliances that are designed for permanent installation, including ranges, ovens, 
stoves, br
oilers, grills, fryers and griddles shall be listed, labeled and installed in accordance with the manufacturer’s 
instructions.
Oil
-
fired cooking appliances are prohibited.
Commercial electric cooking appliances shall be listed and 
labeled in accordance wit
h UL 197. Household electric ranges shall be listed and labeled in accordance with UL 858. 
Microwave cooking appliances shall be listed and labeled in accordance with UL 923. Oil
-
burning stoves shall be 
listed and labeled in accordance with UL 896. Solid
-
f
uel
-
fired ovens shall be listed and labeled in accordance with 
UL 2162.
917.2 Prohibited location.
Cooking appliances designed, tested, listed and labeled for use in commercial occupan-
cies shall not be installed within dwelling units or within any area whe
re domestic cooking operations occur.
917.3 Domestic appliances. 
Cooking appliances installed within dwelling units and within areas where domestic 
cooking operations occur shall be listed and labeled as 
household
-
type
appliances for domestic use.
917.4 Do
mestic range installation.
Domestic ranges installed on combustible floors shall be set on their own bases 
or legs and shall be installed with clearances of not less than that shown on the label.
917.5 Open
-
top broiler unit hoods.
A ventilating hood 
shall be provided above a domestic open
-
top broiler unit, 
unless otherwise listed for forced down draft ventilation.
917.5.1 Clearances.
A minimum clearance of 24 inches (
609.6
mm) shall be maintained between the cooking top 
and combustible material above 
the hood. The hood shall be at least as wide as the open
-
top broiler unit and be 
centered over the unit.
917.6 Commercial cooking appliance venting.
Commercial cooking appliances, other than those exempted by Sec-
tion 501.8 of the 
New York City Fuel Gas Cod
e
, shall be vented by connecting the appliance to a vent or chimney in 
accordance with this code and the appliance manufacturer’s instructions or the appliance shall be vented in accord-
ance with Section 505.1.1 of the 
New York City Fuel Gas Code
.
917.7 Dom
estic ventilation.
When a hood is required for proper ventilation of a domestic cooking appliance, the 
exhaust and make
-
up air systems shall be properly engineered and designed in accordance with Chapter 5.
SECTION 
MC 
918
FORCED
-
AIR WARM
-
AIR FURNACES
918.1
Forced
-
air furnaces.   
Oil
-
fired furnaces shall be tested in accordance with UL 727. Electric furnaces shall be 
tested in accordance with UL 1995. Solid fuel furnaces shall be tested in accordance with UL 391. Forced
-
air furnaces 
shall be installed in acco
rdance with the listings and the manufacturer’s 
instructions. Forced
-
air warm
-
air furnaces 
shall be installed in accordance with the requirements of NFPA 31 and the 
New York City Fuel Gas Code
. Unvented 
fuel
-
fired furnaces are prohibited
.
‡‡‡ Chapter 9 was amended by 
Local Law 
77 
of 2023
. This law has an effective
 date of June 10, 2023.
CHAPTER 9
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION MC 901
GENERAL
901.1 Scope. 
This chapter shall govern the approval, design, installation, construction, maintenance, alteration and 
repair of the appliances and equipment specific
ally identified herein and factory
-
built fireplaces. The approval, design, 
installation, construction, maintenance, alteration and repair of 
gas
-
fired
appliances shall be regulated by the 
New 
York City
Fuel Gas Code
. 
901.2 General. 
The 
requirements of this chapter shall apply to the mechanical equipment and appliances regulated by 
this chapter, in addition to the other requirements of this code, and installed in accordance with the requirements of 
NFPA 31, NFPA 54 and NFPA 211
. 
901.3 Sol
id fuel
-
burning fireplaces and appliances.
All solid fuel
-
burning fireplaces and appliances shall be in-
stalled, altered and maintained in buildings in conformity with the applicable provisions of the 
New York City Air 
Pollution Control
Code
and no new solid fuel
-
burning fireplaces or appliances shall be permitted except those that 
burn the types of fuel allowed by such code.
901.4 Hazardous locations. 
Fireplaces and solid fuel
-
burning appliances shall not be installed in hazardous locations.
901.5 Inspectio
n of solid fuel
-
burning heating appliances, chimneys and flues.
Inspections of solid fuel
-
burning 
heating appliances, chimneys and flues shall be in accordance with the 
New York City Building Code
.
901.6 Fireplaces.
Fireplaces (solid
-
fuel
-
type or ANSI Z21.50) shall be installed with tight
-
fitting noncombustible 
fireplace doors to control infiltration losses in construction types listed here:
1.
Masonry or factory
-
built fireplaces designed to allow an open burn.
2.
Decorative appliances (ANSI Z21.60 gas
-
log 
style unit) installed in a vented solid fuel fireplace.
3.
Vented decorative gas fireplace appliances (ANSI Z21.50 unit).
Fireplaces shall be provided with a source of combustion air as required by the fireplace construction provisions of 
the 
New York City
Building Code
and Chapter 7 of this code.
SECTION 
MC 902
MASONRY FIREPLACES
902.1 General. 
Masonry fireplaces shall be constructed in accordance with the 
New York City Building Code
. 
902.2 Fireplace accessories. 
Listed and labeled fireplace accessories shall be installed in accordance with the condi-
tions of the listing and the manufacturer’s instructions. Fireplace accessories shall comply with UL 907.
SECTION MC 903
FACTORY
-
BUILT FIREPLACES
903.1 General. 
Factory
-
built fireplaces shall be li
sted and labeled and shall be installed in accordance with the con-
ditions of the listing. Factory
-
built fireplaces shall be tested in accordance with UL 127.
SPECIFIC APPLIANCES AND EQUIPMENT
903.2 Hearth extensions. 
Hearth extensions of approved factory
-
built fireplaces shall be installed
in accordance with 
the listing of the fireplace. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed 
and labeled hearth extensions shall comply with UL 1618.
903.3 Unvented gas log heaters.
The installation of 
unv
ented gas
-
fired space heaters, gas stoves, gas logs, gas fire-
places and gas 
fireplace 
inserts is prohibited
.
903.4 Gasketed fireplace doors. 
A gasketed fireplace door shall not be installed on a factory
-
built fireplace except 
where the fireplace system has
been specifically tested, listed and labeled for such use in accordance with UL 127.
903.5 Flues.
Separate flues shall be provided for every
fireplace
and 
fireplace 
stove.
903.6 Combustion air supply.
All installations of
factory
-
built 
fireplaces shall co
mply
with 
the requirements of the 
New York City Energy Conservation Code
concerning combustion air supply
.
SECTION 
MC 
904
PELLET FUEL
-
BURNING APPLIANCES
904.1 General. 
Pellet fuel
-
burning appliances shall be listed and labeled in accordance with ASTM E 
1509 and shall 
be installed in accordance with the terms of the listing.
If permitted, such appliances shall be operated in accordance 
with the 
New York City Air Pollution Control Code.
SECTION 
MC 
905
FIREPLACE STOVES AND ROOM HEATERS
905.1 General. 
Fireplace stoves and solid
-
fuel
-
type room heaters shall be listed and labeled and shall be installed in 
accordance with the conditions of the listing. Fireplace stoves shall be tested in accordance with UL 737. Solid
-
fuel
-
type room heaters s
hall be tested in accordance with UL 1482. Fireplace inserts intended for installation in fireplaces 
shall be listed and labeled in accordance with the requirements of UL 1482 and shall be installed in accordance with 
the manufacturer’s instructions.
905.2
Connection to fireplace. 
The connection of solid fuel appliances to chimney flues serving fireplaces shall 
comply with Sections 801.7 and 801.10.
905.3 Hearth extensions. 
Hearth extensions for fireplace stoves shall be installed in accordance with the lis
ting of 
the fireplace stove. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed and 
labeled hearth extensions shall comply with UL 1618.
905.4 Air pollution.
All 
fireplace stoves 
and room heaters shall comply with
the requirements of the 
New York City 
Air Pollution Control Code
.
905.5 Combustion air supply.
All fireplace stoves and room heaters shall comply with the requirements of the 
New 
York City Energy Conservation Code
concerning combustion air supply.
905.6 F
lues.
Separate flues and independent combustion air source 
shall be 
provided for every fireplace stove and 
room heater. Combustion air shall be provided
in accordance with the 
manufacturer’s recommendations and Chapter 
7
.
SECTION 
MC 
906
FACTORY
-
BUILT BARBECUE APPLIANCES
‡‡‡
906.1 General. 
Factory
-
built barbecue appliances shall be listed and labeled for the use intended and shall be 
installed in accordance with the manufacturer’s instructions, this chapter
, 
the 
New York City
Fuel Gas Code
,
and 
Chapters 3, 5, 7, and 8 of this code
. 
The construction and installation of chimneys serving barbeque appliances shall 
comply with all construction and installation requirements of fireplaces.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
907
INCINERATORS AND CREMATORIES
907.1 General. 
Incinerators and crematories shall be listed and labeled in accordance with UL 791 and 
NFPA 82 and 
shall be installed in accordance with the manufacturer’s
instructions.
907.2 Compliance.
All incinerators and crematories shall be installed, altered and mai
ntained in buildings in con-
formity with the applicable provisions of the 
Administrative Code
and the 
New York City Air Pollution Control Code
.
SECTION 
MC 
908
COOLING TOWERS, EVAPORATIVE CONDENSERS AND FLUID COOLERS
908.1 General. 
A cooling tower used in 
conjunction with an air
-
conditioning appliance shall be installed in accordance 
with the manufacturer’s instructions.
908.2 Access. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with ready access.
908.3 Location. 
Cooling towers
, evaporative condensers and fluid coolers shall be located to prevent the discharge 
vapor plumes from entering occupied spaces. Plume discharges shall be not less than 5 feet (1524 mm) above or 20 
feet (6096 mm) away from any ventilation inlet to a buildi
ng. Location on the property shall be as required for build-
ings in accordance with the 
New York City
Building Code
.
908.3.1 Indoor.
Cooling towers, evaporative condensers and fluid coolers located inside of buildings shall be 
constructed of noncombustible 
materials including fill and drift eliminators.
908.3.2 Outside.
Cooling towers shall be constructed of noncombustible materials.
Exceptions:
1.
Fill and drift eliminators of limited combustible materials may be considered noncombustible if the cool-
ing to
wers are provided with automatic sprinkler protection in compliance with Chapter 9 of the 
New York 
City Building Code
.
2.
Fill and drift eliminators for any individual cooling tower cell may be made of limited combustible mate-
rials provided all the followi
ng conditions are met:
2.1.
The cooling tower is located on a building of construction Types IA or IB of the 
New York City 
Building Code
.
2.2.
The cooling tower cell is located at least 30 feet (9144 mm) away from windows or fresh air intakes 
which are at 
an elevation above the roof on which the cooling tower is located, whether in the same 
building or in an adjoining building.
2.3.
The cooling tower cell is located not less than 15 feet (4572 mm) from the lot line.
2.4.
The cooling tower cell is located no
t less than 10 feet (3048 mm) from any chimney, except that the 
distance shall not be less than 20 feet (6096 mm) from a chimney venting products of combustion 
other than from gas
-
or oil
-
fired appliances, whether on the same or an adjoining building.
908.
4 Support and anchorage.   
Supports for cooling towers, evaporative condensers and fluid coolers shall be de-
signed in accordance with the 
New York City
Building Code. 
Seismic restraints shall be as required by the 
New York 
City
Building Code
. Adequate vibra
tion isolation shall be provided in accordance with the manufacturer’s guidelines 
and as required for the supporting structure, and in accordance with Sections 313.3.7 and 313.3.8.
908.5 Water supply. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with an approved 
water supply, sized for peak demand. The quality of water shall be provided in accordance with the equipment man-
ufacturer’s recommendations. The piping system and p
rotection of the potable water supply system shall be installed 
as required by the 
New York City
Plumbing Code
.
908.6 Drainage. 
Drains, overflows and blowdown provisions shall be indirectly connected to an approved disposal 
location. Discharge of 
chemical waste shall be approved by the appropriate regulatory authority.
908.7 Refrigerants and hazardous fluids. 
Heat exchange equipment that contains a refrigerant and that is part of a 
closed refrigeration system shall comply with Chapter 11. Heat 
exch
ange 
equipment containing heat transfer fluids 
SPECIFIC APPLIANCES AND EQUIPMENT
which are combustible or hazardous shall comply with the 
New York City
Fire Code
. Flammable heat transfer fluids 
are prohibited
.
908.8 Cooling towers. 
Cooling towers, both open circuit and closed circuit type,
and evaporative condensers shall 
comply with Sections 908.8.1 and 908.8.2.
908.8.1 Conductivity or flow
-
based control of cycles of concentration. 
Cooling towers and evaporative conden-
sers shall include controls that automate system bleed based on conducti
vity, fraction of metered makeup volume, 
metered bleed volume, recirculating pump run time or bleed time.
908.8.2 Drift eliminators. 
Cooling towers and evaporative condensers shall be equipped with drift eliminators that 
have a maximum drift rate of 0.005 
percent of the circulated water flow rate as established in the equipment’s 
design specifications.
‡‡‡
908.9
Additional requirements. 
The installation and maintenance of all cooling towers, evaporative condensers, 
and fluid coolers shall comply with the req
uirements of Article 317 of Chapter 3 of Title 
28 
of the 
Administrative 
Code
.
SECTION 
MC 
909
VENTED WALL FURNACES
909.1 General. 
Vented wall furnaces shall be installed in accordance with their listing and the manufacturer’s instruc-
tions. 
Oil
-
fired furnaces shall be tested in accordance with UL 730.
909.2 Location. 
Vented wall furnaces shall be located so as not to cause a fire hazard to walls, floors, combustible 
furnishings or doors. Vented wall furnaces installed between bathrooms and ad
joining rooms shall not circulate air 
from bathrooms to other parts of the building.
909.3 Door swing. 
Vented wall furnaces shall be located so that a door cannot swing within 12 inches (304.8 mm) of 
an air inlet or air outlet of such furnace measured at r
ight angles to the opening. Doorstops or door closers shall not 
be installed to obtain this clearance.
909.4 Ducts prohibited. 
Ducts shall not be attached to wall furnaces. Casing extension boots shall not be installed 
unless listed as part of the applianc
e.
909.5 Manual shutoff valve. 
A manual shutoff valve shall be installed ahead of all controls.
909.6 Access. 
Vented wall furnaces shall be provided with access for cleaning of heating surfaces, removal of burners, 
replacement of sections, motors, controls
, filters and other working parts, and for adjustments and lubrication of parts 
requiring such attention. Panels, grilles and access doors that must be removed for normal servicing operations shall 
not be attached to the building construction.
SECTION 
MC 
9
10
FLOOR FURNACES
910.1 General. 
Floor furnaces shall be installed in accordance with their listing and the manufacturer’s instructions. 
Oil
-
fired furnaces shall be tested in accordance with UL 729.
Unvented floor furnaces are prohibited.
910.2 Placement. 
Floor furnaces shall not be installed in 
any corridor, in 
the floor of any aisle or passageway of any 
auditorium, public hall, place of assembly, or in any egress element from any such room or space.
With the exception of wall register models, a floor furn
ace shall not be placed closer than 6 inches (152.4 mm) to 
the nearest wall, and wall register models shall not be placed closer than 6 inches (152.4 mm) to a corner.
The furnace shall be placed such that a drapery or similar combustible object will not be
nearer than 12 inches 
(304.8 mm) to any portion of the register of the furnace. Floor furnaces shall not be installed in concrete floor con-
struction built on grade. The controlling thermostat for a floor furnace shall be located within the same room or sp
ace 
as the floor furnace or shall be located in an adjacent room or space that is permanently open to the room or space 
containing the floor furnace.
Floor furnaces shall be located so as to be accessible. Floor furnaces shall be installed 
SPECIFIC APPLIANCES AND EQUIPMENT
only in floors o
f noncombustible construction having at least a 2
-
hour fire rating, except as where required for one
-
and two
-
family dwellings.
910.3 Bracing. 
The floor around the furnace shall be braced and headed with a support framework design in accord-
ance with the 
Ne
w York City
Building Code
.
910.4 Clearance. 
The lowest portion of the floor furnace shall have not less than a 6
-
inch (152.4 mm) clearance from 
the grade level; except where the lower 6
-
inch (152.4 mm) portion of the floor furnace is sealed by the 
manufacturer 
to prevent entrance of water, the minimum clearance shall be reduced to not less than 2 inches (50.8 mm). Where 
these clearances are not present, the ground below and to the sides shall be excavated to form a pit under the furnace 
so that the 
required clearance is provided beneath the lowest portion of the furnace. A 12
-
inch (304.8 mm) minimum 
clearance shall be provided on all sides except the control side, which shall have an 18
-
inch (457.2 mm) minimum 
clearance.
910.5 Enclosures.
Enclosures 
of floor furnaces shall be constructed entirely of noncombustible materials with a fire
-
resistance rating of at least 1 hour and shall be provided with adequate outdoor air to ensure proper combustion. The 
enclosure shall be provided with adequate means of
access for servicing the furnace.
910.6 Duct temperature.
The outlet duct temperature of warm air heating furnaces shall not be greater than 250°F 
(121.1°C).
910.7 One
-
and two
-
family dwellings.
Floor furnace enclosures shall be constructed of noncombust
ible materials 
with a fire
-
resistance rating of at least 1 hour. Means shall be provided for supporting the furnace when the grille is 
removed. Clearances shall be provided as per NFPA 54.
SECTION 
MC 
911
DUCT FURNACES AND HEATERS
911.1 General. 
Duct furnac
es and heaters shall be installed in accordance with the manufacturer’s instructions. Elec-
tric 
furnaces and duct heaters
shall
comply with UL 
1995 or UL 1996, as applicable. Unvented fuel
-
fired duct fur-
naces are prohibited
.
911.2 Access panels.
Ducts conne
cted to duct furnaces shall have removable access panels on both the upstream and 
downstream sides of the furnace.
911.3 Location of draft hood and controls.
The controls, combustion air inlets and draft hoods for duct furnaces 
shall be located outside of 
the ducts. The draft hood shall be located in the same enclosure from which combustion 
air is taken.
911.4 Circulating air.
Where a duct furnace is installed so that supply ducts convey air to areas outside the space 
containing the furnace, the 
return air shall also be conveyed by a duct(s) sealed to the furnace casing and terminating 
outside the space containing the furnace. The duct furnace shall be installed on the positive pressure side of the 
circulating air blower.
911.5 Duct temperature.
T
he outlet duct temperature of duct furnaces shall not be greater than 250°F (121.1°C).
SECTION 
MC 
912
INFRARED RADIANT HEATERS
912.1 General. 
Electric infrared radiant heaters shall comply with UL 499.
912.2 Support. 
Infrared radiant heaters shall be fixed
in a position independent of fuel and electric supply lines. 
Hangers and brackets shall be noncombustible material.
912.3 Clearances. 
Heaters shall be installed with clearances from combustible material in accordance with the man-
ufacturer’s instructions.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
913
CLOTHES DRYERS
913.1 General. 
Clothes dryers shall be installed in accordance with the manufacturer’s instructions and shall comply 
with the following as applicable: 
1.
Electric commercial clothes dryers shall be tested in accordance with U
L 1240. 
2.
Electric residential clothes dryers shall be tested in accordance with UL 2158. 
3.
Electric coin
-
, ticket
-
, or card
-
operated clothes dryers shall be tested in accordance with UL 2158.
913.2 Exhaust required. 
Clothes dryers shall be exhausted i
n accordance with Section 504.
Exception:
Electric clothes dryers provided with a condensate drain. Spaces containing such dryers shall be pro-
vided with transfer air openings or other approved means to provide adequate air exchanges with adjacent spaces.
9
13.3 Clearances. 
Clothes dryers shall be installed with clearance to combustibles in accordance with the manufac-
turer’s instructions.
SECTION 
MC 
914
SAUNA HEATERS
914.1 Location and protection. 
Sauna heaters shall be located so as to minimize the possibili
ty of accidental contact 
by a person in the room.
914.1.1 Guards. 
Sauna heaters shall be protected from accidental contact by an approved guard or barrier of ma-
terial having a low coefficient of thermal conductivity. The guard shall not substantially affec
t the transfer of heat 
from the heater to the room.
914.2 Installation. 
Sauna heaters shall be listed and labeled in accordance with UL 875 and shall be installed in 
accordance with their listing and the manufacturer’s instructions.
914.3 Access. 
Panels, g
rilles and access doors that are required to be removed for normal servicing operations shall 
not be attached to the building.
914.4 Heat and time controls. 
Sauna heaters shall be equipped with a thermostat that will limit room temperature to 
194°F (90°C).
If the thermostat is not an integral part of the sauna heater, the heat
-
sensing element shall be located 
within 6 inches (152.4 mm) of the ceiling. If the heat
-
sensing element is a capillary tube and bulb, the assembly shall 
be attached to the wall or oth
er support, and shall be protected against physical damage.
914.4.1 Timers. 
A timer, if provided to control main burner operation, shall have a maximum operating time of 1 
hour. The control for the timer shall be located outside the sauna room.
914.5 
Sauna room. 
A ventilation opening into the sauna room shall be provided. The opening shall be not less than 
4 inches by 8 inches (101.6 mm by 203.2 mm) located near the top of the door into the sauna room.
914.5.1 Warning notice. 
The following permanent no
tice, constructed of approved material, shall be mechanically 
attached to the sauna room on the outside:
WARNING: DO NOT EXCEED 30 MINUTES IN SAUNA. EXCESSIVE EXPOSURE CAN BE HARMFUL 
TO HEALTH. ANY PERSON WITH POOR HEALTH SHOULD CONSULT A PHYSICIAN BEFORE 
US-
ING SAUNA.
The words shall contrast with the background and the wording shall be in letters not less than
1
/
4
-
inch (6.4 mm) 
high.
Exception: 
This section shall not apply to one
-
and two
-
family dwellings.
SECTION 
MC 
915
ENGINE AND GAS TURBINE
-
POWERED EQUI
PMENT AND APPLIANCES
SPECIFIC APPLIANCES AND EQUIPMENT
915.1 General. 
The installation of liquid
-
fueled stationary internal combustion engines and gas turbines, including 
combustion air, 
exhaust, fuel storage and piping, shall meet the requirements of NFPA 37
and Chapters 7, 8, and 13 
of t
his code
. Stationary engine generator assemblies shall meet the requirements of UL 2200.
915.2 Powered equipment and appliances. 
Permanently installed equipment and appliances powered by internal 
combustion engines and turbines shall be installed in 
accordance with the manufacturer’s instructions and NFPA 37.
SECTION 
MC 
916
POOL AND SPA HEATERS
916.1 General. 
Pool and spa heaters shall be installed in accordance with the manufacturer’s instructions. Oil
-
fired 
pool and spa heaters shall be tested in ac
cordance with UL 726. Electric pool and spa heaters shall be tested in accord-
ance with UL 1261.
SECTION 
MC 
917
COOKING APPLIANCES
917.1 Cooking appliances. 
Cooking appliances that are designed for permanent installation, including ranges, ovens, 
stoves, br
oilers, grills, fryers and griddles shall be listed, labeled and installed in accordance with the manufacturer’s 
instructions.
Oil
-
fired cooking appliances are prohibited.
Commercial electric cooking appliances shall be listed and 
labeled in accordance wit
h UL 197. Household electric ranges shall be listed and labeled in accordance with UL 858. 
Microwave cooking appliances shall be listed and labeled in accordance with UL 923. Oil
-
burning stoves shall be 
listed and labeled in accordance with UL 896. Solid
-
f
uel
-
fired ovens shall be listed and labeled in accordance with 
UL 2162.
917.2 Prohibited location.
Cooking appliances designed, tested, listed and labeled for use in commercial occupan-
cies shall not be installed within dwelling units or within any area whe
re domestic cooking operations occur.
917.3 Domestic appliances. 
Cooking appliances installed within dwelling units and within areas where domestic 
cooking operations occur shall be listed and labeled as 
household
-
type
appliances for domestic use.
917.4 Do
mestic range installation.
Domestic ranges installed on combustible floors shall be set on their own bases 
or legs and shall be installed with clearances of not less than that shown on the label.
917.5 Open
-
top broiler unit hoods.
A ventilating hood 
shall be provided above a domestic open
-
top broiler unit, 
unless otherwise listed for forced down draft ventilation.
917.5.1 Clearances.
A minimum clearance of 24 inches (
609.6
mm) shall be maintained between the cooking top 
and combustible material above 
the hood. The hood shall be at least as wide as the open
-
top broiler unit and be 
centered over the unit.
917.6 Commercial cooking appliance venting.
Commercial cooking appliances, other than those exempted by Sec-
tion 501.8 of the 
New York City Fuel Gas Cod
e
, shall be vented by connecting the appliance to a vent or chimney in 
accordance with this code and the appliance manufacturer’s instructions or the appliance shall be vented in accord-
ance with Section 505.1.1 of the 
New York City Fuel Gas Code
.
917.7 Dom
estic ventilation.
When a hood is required for proper ventilation of a domestic cooking appliance, the 
exhaust and make
-
up air systems shall be properly engineered and designed in accordance with Chapter 5.
SECTION 
MC 
918
FORCED
-
AIR WARM
-
AIR FURNACES
918.1
Forced
-
air furnaces.   
Oil
-
fired furnaces shall be tested in accordance with UL 727. Electric furnaces shall be 
tested in accordance with UL 1995. Solid fuel furnaces shall be tested in accordance with UL 391. Forced
-
air furnaces 
shall be installed in acco
rdance with the listings and the manufacturer’s 
instructions. Forced
-
air warm
-
air furnaces 
shall be installed in accordance with the requirements of NFPA 31 and the 
New York City Fuel Gas Code
. Unvented 
fuel
-
fired furnaces are prohibited
.
‡‡‡ Chapter 9 was amended by 
Local Law 
77 
of 2023
. This law has an effective
 date of June 10, 2023.
CHAPTER 9
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION MC 901
GENERAL
901.1 Scope. 
This chapter shall govern the approval, design, installation, construction, maintenance, alteration and 
repair of the appliances and equipment specific
ally identified herein and factory
-
built fireplaces. The approval, design, 
installation, construction, maintenance, alteration and repair of 
gas
-
fired
appliances shall be regulated by the 
New 
York City
Fuel Gas Code
. 
901.2 General. 
The 
requirements of this chapter shall apply to the mechanical equipment and appliances regulated by 
this chapter, in addition to the other requirements of this code, and installed in accordance with the requirements of 
NFPA 31, NFPA 54 and NFPA 211
. 
901.3 Sol
id fuel
-
burning fireplaces and appliances.
All solid fuel
-
burning fireplaces and appliances shall be in-
stalled, altered and maintained in buildings in conformity with the applicable provisions of the 
New York City Air 
Pollution Control
Code
and no new solid fuel
-
burning fireplaces or appliances shall be permitted except those that 
burn the types of fuel allowed by such code.
901.4 Hazardous locations. 
Fireplaces and solid fuel
-
burning appliances shall not be installed in hazardous locations.
901.5 Inspectio
n of solid fuel
-
burning heating appliances, chimneys and flues.
Inspections of solid fuel
-
burning 
heating appliances, chimneys and flues shall be in accordance with the 
New York City Building Code
.
901.6 Fireplaces.
Fireplaces (solid
-
fuel
-
type or ANSI Z21.50) shall be installed with tight
-
fitting noncombustible 
fireplace doors to control infiltration losses in construction types listed here:
1.
Masonry or factory
-
built fireplaces designed to allow an open burn.
2.
Decorative appliances (ANSI Z21.60 gas
-
log 
style unit) installed in a vented solid fuel fireplace.
3.
Vented decorative gas fireplace appliances (ANSI Z21.50 unit).
Fireplaces shall be provided with a source of combustion air as required by the fireplace construction provisions of 
the 
New York City
Building Code
and Chapter 7 of this code.
SECTION 
MC 902
MASONRY FIREPLACES
902.1 General. 
Masonry fireplaces shall be constructed in accordance with the 
New York City Building Code
. 
902.2 Fireplace accessories. 
Listed and labeled fireplace accessories shall be installed in accordance with the condi-
tions of the listing and the manufacturer’s instructions. Fireplace accessories shall comply with UL 907.
SECTION MC 903
FACTORY
-
BUILT FIREPLACES
903.1 General. 
Factory
-
built fireplaces shall be li
sted and labeled and shall be installed in accordance with the con-
ditions of the listing. Factory
-
built fireplaces shall be tested in accordance with UL 127.
SPECIFIC APPLIANCES AND EQUIPMENT
903.2 Hearth extensions. 
Hearth extensions of approved factory
-
built fireplaces shall be installed
in accordance with 
the listing of the fireplace. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed 
and labeled hearth extensions shall comply with UL 1618.
903.3 Unvented gas log heaters.
The installation of 
unv
ented gas
-
fired space heaters, gas stoves, gas logs, gas fire-
places and gas 
fireplace 
inserts is prohibited
.
903.4 Gasketed fireplace doors. 
A gasketed fireplace door shall not be installed on a factory
-
built fireplace except 
where the fireplace system has
been specifically tested, listed and labeled for such use in accordance with UL 127.
903.5 Flues.
Separate flues shall be provided for every
fireplace
and 
fireplace 
stove.
903.6 Combustion air supply.
All installations of
factory
-
built 
fireplaces shall co
mply
with 
the requirements of the 
New York City Energy Conservation Code
concerning combustion air supply
.
SECTION 
MC 
904
PELLET FUEL
-
BURNING APPLIANCES
904.1 General. 
Pellet fuel
-
burning appliances shall be listed and labeled in accordance with ASTM E 
1509 and shall 
be installed in accordance with the terms of the listing.
If permitted, such appliances shall be operated in accordance 
with the 
New York City Air Pollution Control Code.
SECTION 
MC 
905
FIREPLACE STOVES AND ROOM HEATERS
905.1 General. 
Fireplace stoves and solid
-
fuel
-
type room heaters shall be listed and labeled and shall be installed in 
accordance with the conditions of the listing. Fireplace stoves shall be tested in accordance with UL 737. Solid
-
fuel
-
type room heaters s
hall be tested in accordance with UL 1482. Fireplace inserts intended for installation in fireplaces 
shall be listed and labeled in accordance with the requirements of UL 1482 and shall be installed in accordance with 
the manufacturer’s instructions.
905.2
Connection to fireplace. 
The connection of solid fuel appliances to chimney flues serving fireplaces shall 
comply with Sections 801.7 and 801.10.
905.3 Hearth extensions. 
Hearth extensions for fireplace stoves shall be installed in accordance with the lis
ting of 
the fireplace stove. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed and 
labeled hearth extensions shall comply with UL 1618.
905.4 Air pollution.
All 
fireplace stoves 
and room heaters shall comply with
the requirements of the 
New York City 
Air Pollution Control Code
.
905.5 Combustion air supply.
All fireplace stoves and room heaters shall comply with the requirements of the 
New 
York City Energy Conservation Code
concerning combustion air supply.
905.6 F
lues.
Separate flues and independent combustion air source 
shall be 
provided for every fireplace stove and 
room heater. Combustion air shall be provided
in accordance with the 
manufacturer’s recommendations and Chapter 
7
.
SECTION 
MC 
906
FACTORY
-
BUILT BARBECUE APPLIANCES
‡‡‡
906.1 General. 
Factory
-
built barbecue appliances shall be listed and labeled for the use intended and shall be 
installed in accordance with the manufacturer’s instructions, this chapter
, 
the 
New York City
Fuel Gas Code
,
and 
Chapters 3, 5, 7, and 8 of this code
. 
The construction and installation of chimneys serving barbeque appliances shall 
comply with all construction and installation requirements of fireplaces.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
907
INCINERATORS AND CREMATORIES
907.1 General. 
Incinerators and crematories shall be listed and labeled in accordance with UL 791 and 
NFPA 82 and 
shall be installed in accordance with the manufacturer’s
instructions.
907.2 Compliance.
All incinerators and crematories shall be installed, altered and mai
ntained in buildings in con-
formity with the applicable provisions of the 
Administrative Code
and the 
New York City Air Pollution Control Code
.
SECTION 
MC 
908
COOLING TOWERS, EVAPORATIVE CONDENSERS AND FLUID COOLERS
908.1 General. 
A cooling tower used in 
conjunction with an air
-
conditioning appliance shall be installed in accordance 
with the manufacturer’s instructions.
908.2 Access. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with ready access.
908.3 Location. 
Cooling towers
, evaporative condensers and fluid coolers shall be located to prevent the discharge 
vapor plumes from entering occupied spaces. Plume discharges shall be not less than 5 feet (1524 mm) above or 20 
feet (6096 mm) away from any ventilation inlet to a buildi
ng. Location on the property shall be as required for build-
ings in accordance with the 
New York City
Building Code
.
908.3.1 Indoor.
Cooling towers, evaporative condensers and fluid coolers located inside of buildings shall be 
constructed of noncombustible 
materials including fill and drift eliminators.
908.3.2 Outside.
Cooling towers shall be constructed of noncombustible materials.
Exceptions:
1.
Fill and drift eliminators of limited combustible materials may be considered noncombustible if the cool-
ing to
wers are provided with automatic sprinkler protection in compliance with Chapter 9 of the 
New York 
City Building Code
.
2.
Fill and drift eliminators for any individual cooling tower cell may be made of limited combustible mate-
rials provided all the followi
ng conditions are met:
2.1.
The cooling tower is located on a building of construction Types IA or IB of the 
New York City 
Building Code
.
2.2.
The cooling tower cell is located at least 30 feet (9144 mm) away from windows or fresh air intakes 
which are at 
an elevation above the roof on which the cooling tower is located, whether in the same 
building or in an adjoining building.
2.3.
The cooling tower cell is located not less than 15 feet (4572 mm) from the lot line.
2.4.
The cooling tower cell is located no
t less than 10 feet (3048 mm) from any chimney, except that the 
distance shall not be less than 20 feet (6096 mm) from a chimney venting products of combustion 
other than from gas
-
or oil
-
fired appliances, whether on the same or an adjoining building.
908.
4 Support and anchorage.   
Supports for cooling towers, evaporative condensers and fluid coolers shall be de-
signed in accordance with the 
New York City
Building Code. 
Seismic restraints shall be as required by the 
New York 
City
Building Code
. Adequate vibra
tion isolation shall be provided in accordance with the manufacturer’s guidelines 
and as required for the supporting structure, and in accordance with Sections 313.3.7 and 313.3.8.
908.5 Water supply. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with an approved 
water supply, sized for peak demand. The quality of water shall be provided in accordance with the equipment man-
ufacturer’s recommendations. The piping system and p
rotection of the potable water supply system shall be installed 
as required by the 
New York City
Plumbing Code
.
908.6 Drainage. 
Drains, overflows and blowdown provisions shall be indirectly connected to an approved disposal 
location. Discharge of 
chemical waste shall be approved by the appropriate regulatory authority.
908.7 Refrigerants and hazardous fluids. 
Heat exchange equipment that contains a refrigerant and that is part of a 
closed refrigeration system shall comply with Chapter 11. Heat 
exch
ange 
equipment containing heat transfer fluids 
SPECIFIC APPLIANCES AND EQUIPMENT
which are combustible or hazardous shall comply with the 
New York City
Fire Code
. Flammable heat transfer fluids 
are prohibited
.
908.8 Cooling towers. 
Cooling towers, both open circuit and closed circuit type,
and evaporative condensers shall 
comply with Sections 908.8.1 and 908.8.2.
908.8.1 Conductivity or flow
-
based control of cycles of concentration. 
Cooling towers and evaporative conden-
sers shall include controls that automate system bleed based on conducti
vity, fraction of metered makeup volume, 
metered bleed volume, recirculating pump run time or bleed time.
908.8.2 Drift eliminators. 
Cooling towers and evaporative condensers shall be equipped with drift eliminators that 
have a maximum drift rate of 0.005 
percent of the circulated water flow rate as established in the equipment’s 
design specifications.
‡‡‡
908.9
Additional requirements. 
The installation and maintenance of all cooling towers, evaporative condensers, 
and fluid coolers shall comply with the req
uirements of Article 317 of Chapter 3 of Title 
28 
of the 
Administrative 
Code
.
SECTION 
MC 
909
VENTED WALL FURNACES
909.1 General. 
Vented wall furnaces shall be installed in accordance with their listing and the manufacturer’s instruc-
tions. 
Oil
-
fired furnaces shall be tested in accordance with UL 730.
909.2 Location. 
Vented wall furnaces shall be located so as not to cause a fire hazard to walls, floors, combustible 
furnishings or doors. Vented wall furnaces installed between bathrooms and ad
joining rooms shall not circulate air 
from bathrooms to other parts of the building.
909.3 Door swing. 
Vented wall furnaces shall be located so that a door cannot swing within 12 inches (304.8 mm) of 
an air inlet or air outlet of such furnace measured at r
ight angles to the opening. Doorstops or door closers shall not 
be installed to obtain this clearance.
909.4 Ducts prohibited. 
Ducts shall not be attached to wall furnaces. Casing extension boots shall not be installed 
unless listed as part of the applianc
e.
909.5 Manual shutoff valve. 
A manual shutoff valve shall be installed ahead of all controls.
909.6 Access. 
Vented wall furnaces shall be provided with access for cleaning of heating surfaces, removal of burners, 
replacement of sections, motors, controls
, filters and other working parts, and for adjustments and lubrication of parts 
requiring such attention. Panels, grilles and access doors that must be removed for normal servicing operations shall 
not be attached to the building construction.
SECTION 
MC 
9
10
FLOOR FURNACES
910.1 General. 
Floor furnaces shall be installed in accordance with their listing and the manufacturer’s instructions. 
Oil
-
fired furnaces shall be tested in accordance with UL 729.
Unvented floor furnaces are prohibited.
910.2 Placement. 
Floor furnaces shall not be installed in 
any corridor, in 
the floor of any aisle or passageway of any 
auditorium, public hall, place of assembly, or in any egress element from any such room or space.
With the exception of wall register models, a floor furn
ace shall not be placed closer than 6 inches (152.4 mm) to 
the nearest wall, and wall register models shall not be placed closer than 6 inches (152.4 mm) to a corner.
The furnace shall be placed such that a drapery or similar combustible object will not be
nearer than 12 inches 
(304.8 mm) to any portion of the register of the furnace. Floor furnaces shall not be installed in concrete floor con-
struction built on grade. The controlling thermostat for a floor furnace shall be located within the same room or sp
ace 
as the floor furnace or shall be located in an adjacent room or space that is permanently open to the room or space 
containing the floor furnace.
Floor furnaces shall be located so as to be accessible. Floor furnaces shall be installed 
SPECIFIC APPLIANCES AND EQUIPMENT
only in floors o
f noncombustible construction having at least a 2
-
hour fire rating, except as where required for one
-
and two
-
family dwellings.
910.3 Bracing. 
The floor around the furnace shall be braced and headed with a support framework design in accord-
ance with the 
Ne
w York City
Building Code
.
910.4 Clearance. 
The lowest portion of the floor furnace shall have not less than a 6
-
inch (152.4 mm) clearance from 
the grade level; except where the lower 6
-
inch (152.4 mm) portion of the floor furnace is sealed by the 
manufacturer 
to prevent entrance of water, the minimum clearance shall be reduced to not less than 2 inches (50.8 mm). Where 
these clearances are not present, the ground below and to the sides shall be excavated to form a pit under the furnace 
so that the 
required clearance is provided beneath the lowest portion of the furnace. A 12
-
inch (304.8 mm) minimum 
clearance shall be provided on all sides except the control side, which shall have an 18
-
inch (457.2 mm) minimum 
clearance.
910.5 Enclosures.
Enclosures 
of floor furnaces shall be constructed entirely of noncombustible materials with a fire
-
resistance rating of at least 1 hour and shall be provided with adequate outdoor air to ensure proper combustion. The 
enclosure shall be provided with adequate means of
access for servicing the furnace.
910.6 Duct temperature.
The outlet duct temperature of warm air heating furnaces shall not be greater than 250°F 
(121.1°C).
910.7 One
-
and two
-
family dwellings.
Floor furnace enclosures shall be constructed of noncombust
ible materials 
with a fire
-
resistance rating of at least 1 hour. Means shall be provided for supporting the furnace when the grille is 
removed. Clearances shall be provided as per NFPA 54.
SECTION 
MC 
911
DUCT FURNACES AND HEATERS
911.1 General. 
Duct furnac
es and heaters shall be installed in accordance with the manufacturer’s instructions. Elec-
tric 
furnaces and duct heaters
shall
comply with UL 
1995 or UL 1996, as applicable. Unvented fuel
-
fired duct fur-
naces are prohibited
.
911.2 Access panels.
Ducts conne
cted to duct furnaces shall have removable access panels on both the upstream and 
downstream sides of the furnace.
911.3 Location of draft hood and controls.
The controls, combustion air inlets and draft hoods for duct furnaces 
shall be located outside of 
the ducts. The draft hood shall be located in the same enclosure from which combustion 
air is taken.
911.4 Circulating air.
Where a duct furnace is installed so that supply ducts convey air to areas outside the space 
containing the furnace, the 
return air shall also be conveyed by a duct(s) sealed to the furnace casing and terminating 
outside the space containing the furnace. The duct furnace shall be installed on the positive pressure side of the 
circulating air blower.
911.5 Duct temperature.
T
he outlet duct temperature of duct furnaces shall not be greater than 250°F (121.1°C).
SECTION 
MC 
912
INFRARED RADIANT HEATERS
912.1 General. 
Electric infrared radiant heaters shall comply with UL 499.
912.2 Support. 
Infrared radiant heaters shall be fixed
in a position independent of fuel and electric supply lines. 
Hangers and brackets shall be noncombustible material.
912.3 Clearances. 
Heaters shall be installed with clearances from combustible material in accordance with the man-
ufacturer’s instructions.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
913
CLOTHES DRYERS
913.1 General. 
Clothes dryers shall be installed in accordance with the manufacturer’s instructions and shall comply 
with the following as applicable: 
1.
Electric commercial clothes dryers shall be tested in accordance with U
L 1240. 
2.
Electric residential clothes dryers shall be tested in accordance with UL 2158. 
3.
Electric coin
-
, ticket
-
, or card
-
operated clothes dryers shall be tested in accordance with UL 2158.
913.2 Exhaust required. 
Clothes dryers shall be exhausted i
n accordance with Section 504.
Exception:
Electric clothes dryers provided with a condensate drain. Spaces containing such dryers shall be pro-
vided with transfer air openings or other approved means to provide adequate air exchanges with adjacent spaces.
9
13.3 Clearances. 
Clothes dryers shall be installed with clearance to combustibles in accordance with the manufac-
turer’s instructions.
SECTION 
MC 
914
SAUNA HEATERS
914.1 Location and protection. 
Sauna heaters shall be located so as to minimize the possibili
ty of accidental contact 
by a person in the room.
914.1.1 Guards. 
Sauna heaters shall be protected from accidental contact by an approved guard or barrier of ma-
terial having a low coefficient of thermal conductivity. The guard shall not substantially affec
t the transfer of heat 
from the heater to the room.
914.2 Installation. 
Sauna heaters shall be listed and labeled in accordance with UL 875 and shall be installed in 
accordance with their listing and the manufacturer’s instructions.
914.3 Access. 
Panels, g
rilles and access doors that are required to be removed for normal servicing operations shall 
not be attached to the building.
914.4 Heat and time controls. 
Sauna heaters shall be equipped with a thermostat that will limit room temperature to 
194°F (90°C).
If the thermostat is not an integral part of the sauna heater, the heat
-
sensing element shall be located 
within 6 inches (152.4 mm) of the ceiling. If the heat
-
sensing element is a capillary tube and bulb, the assembly shall 
be attached to the wall or oth
er support, and shall be protected against physical damage.
914.4.1 Timers. 
A timer, if provided to control main burner operation, shall have a maximum operating time of 1 
hour. The control for the timer shall be located outside the sauna room.
914.5 
Sauna room. 
A ventilation opening into the sauna room shall be provided. The opening shall be not less than 
4 inches by 8 inches (101.6 mm by 203.2 mm) located near the top of the door into the sauna room.
914.5.1 Warning notice. 
The following permanent no
tice, constructed of approved material, shall be mechanically 
attached to the sauna room on the outside:
WARNING: DO NOT EXCEED 30 MINUTES IN SAUNA. EXCESSIVE EXPOSURE CAN BE HARMFUL 
TO HEALTH. ANY PERSON WITH POOR HEALTH SHOULD CONSULT A PHYSICIAN BEFORE 
US-
ING SAUNA.
The words shall contrast with the background and the wording shall be in letters not less than
1
/
4
-
inch (6.4 mm) 
high.
Exception: 
This section shall not apply to one
-
and two
-
family dwellings.
SECTION 
MC 
915
ENGINE AND GAS TURBINE
-
POWERED EQUI
PMENT AND APPLIANCES
SPECIFIC APPLIANCES AND EQUIPMENT
915.1 General. 
The installation of liquid
-
fueled stationary internal combustion engines and gas turbines, including 
combustion air, 
exhaust, fuel storage and piping, shall meet the requirements of NFPA 37
and Chapters 7, 8, and 13 
of t
his code
. Stationary engine generator assemblies shall meet the requirements of UL 2200.
915.2 Powered equipment and appliances. 
Permanently installed equipment and appliances powered by internal 
combustion engines and turbines shall be installed in 
accordance with the manufacturer’s instructions and NFPA 37.
SECTION 
MC 
916
POOL AND SPA HEATERS
916.1 General. 
Pool and spa heaters shall be installed in accordance with the manufacturer’s instructions. Oil
-
fired 
pool and spa heaters shall be tested in ac
cordance with UL 726. Electric pool and spa heaters shall be tested in accord-
ance with UL 1261.
SECTION 
MC 
917
COOKING APPLIANCES
917.1 Cooking appliances. 
Cooking appliances that are designed for permanent installation, including ranges, ovens, 
stoves, br
oilers, grills, fryers and griddles shall be listed, labeled and installed in accordance with the manufacturer’s 
instructions.
Oil
-
fired cooking appliances are prohibited.
Commercial electric cooking appliances shall be listed and 
labeled in accordance wit
h UL 197. Household electric ranges shall be listed and labeled in accordance with UL 858. 
Microwave cooking appliances shall be listed and labeled in accordance with UL 923. Oil
-
burning stoves shall be 
listed and labeled in accordance with UL 896. Solid
-
f
uel
-
fired ovens shall be listed and labeled in accordance with 
UL 2162.
917.2 Prohibited location.
Cooking appliances designed, tested, listed and labeled for use in commercial occupan-
cies shall not be installed within dwelling units or within any area whe
re domestic cooking operations occur.
917.3 Domestic appliances. 
Cooking appliances installed within dwelling units and within areas where domestic 
cooking operations occur shall be listed and labeled as 
household
-
type
appliances for domestic use.
917.4 Do
mestic range installation.
Domestic ranges installed on combustible floors shall be set on their own bases 
or legs and shall be installed with clearances of not less than that shown on the label.
917.5 Open
-
top broiler unit hoods.
A ventilating hood 
shall be provided above a domestic open
-
top broiler unit, 
unless otherwise listed for forced down draft ventilation.
917.5.1 Clearances.
A minimum clearance of 24 inches (
609.6
mm) shall be maintained between the cooking top 
and combustible material above 
the hood. The hood shall be at least as wide as the open
-
top broiler unit and be 
centered over the unit.
917.6 Commercial cooking appliance venting.
Commercial cooking appliances, other than those exempted by Sec-
tion 501.8 of the 
New York City Fuel Gas Cod
e
, shall be vented by connecting the appliance to a vent or chimney in 
accordance with this code and the appliance manufacturer’s instructions or the appliance shall be vented in accord-
ance with Section 505.1.1 of the 
New York City Fuel Gas Code
.
917.7 Dom
estic ventilation.
When a hood is required for proper ventilation of a domestic cooking appliance, the 
exhaust and make
-
up air systems shall be properly engineered and designed in accordance with Chapter 5.
SECTION 
MC 
918
FORCED
-
AIR WARM
-
AIR FURNACES
918.1
Forced
-
air furnaces.   
Oil
-
fired furnaces shall be tested in accordance with UL 727. Electric furnaces shall be 
tested in accordance with UL 1995. Solid fuel furnaces shall be tested in accordance with UL 391. Forced
-
air furnaces 
shall be installed in acco
rdance with the listings and the manufacturer’s 
instructions. Forced
-
air warm
-
air furnaces 
shall be installed in accordance with the requirements of NFPA 31 and the 
New York City Fuel Gas Code
. Unvented 
fuel
-
fired furnaces are prohibited
.
SPECIFIC APPLIANCES AND EQUIPMENT
918.2 Heat pumps.
Electric heat pumps shall be tested in accordance with UL 1995 or UL 60335
-
2
-
40.
918.3 Dampers. 
Volume dampers shall not be placed in the air inlet to a furnace in a manner that will reduce the 
required air to the furnace.
918.4 Circulating air ducts for 
forced
-
air warm
-
air furnaces.   
Circulating air for fuel
-
burning, forced
-
air
-
type, 
warm
-
air furnaces shall be conducted into the blower housing from outside the furnace enclosure by continuous air
-
tight ducts.
918.5 Outdoor and return air openings.
Outdoor 
intake openings shall be located in accordance with Section 401.4. 
Return air openings shall be located in accordance with Section 618.4 of the 
New York City Fuel Gas Code
.
918.6 Outdoor opening protection.  
Outdoor air intake openings shall be 
protected in accordance with Section 
401.5.
SECTION 
MC 
919
CONVERSION BURNERS
919.1 Conversion burners. 
The installation of conversion burners shall conform to ANSI Z21.8 and the applicable 
requirements of Chapter 10 of this code.
SECTION 
MC 
920
UNIT HEATE
RS
920.1 General. 
Unit heaters shall be installed in accordance with the listing and the manufacturer’s instructions. Oil
-
fired unit heaters shall be tested in accordance with UL 731.
920.2 Support. 
Suspended
-
type unit heaters shall be supported by element
s that are designed and constructed to ac-
commodate the weight and dynamic loads. Hangers and brackets shall be of noncombustible material. 
Suspended
-
type
oil
-
fired unit heaters shall be installed in accordance with NFPA 31.
920.3 Ductwork. 
A unit heater sh
all not be attached to a warm
-
air duct system unless listed for such installation.
SECTION 
MC 
921
VENTED ROOM HEATERS
921.1 General. 
Vented room heaters shall be listed and labeled and shall be installed in accordance with the conditions 
of the listing and
the manufacturer’s instructions.
SECTION 
MC 
922
KEROSENE AND OIL
-
FIRED STOVES
922.1 General.
The installation of kerosene and oil
-
fired stoves is prohibited.
SECTION 
MC 
923
CERAMIC KILNS
923.1 General.
Kilns shall be listed and labeled unless 
otherwise approved in accordance with Section 105.1. Electric 
kilns shall comply with UL 499. The approval of unlisted appliances in accordance with Section 105.1 shall be based 
on approved engineering evaluation.
923.1.1 Installation.   
Kilns shall be inst
alled in accordance with the manufacturer’s instructions and the provi-
sions of this code.
‡‡‡ Chapter 9 was amended by 
Local Law 
77 
of 2023
. This law has an effective
 date of June 10, 2023.
CHAPTER 9
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION MC 901
GENERAL
901.1 Scope. 
This chapter shall govern the approval, design, installation, construction, maintenance, alteration and 
repair of the appliances and equipment specific
ally identified herein and factory
-
built fireplaces. The approval, design, 
installation, construction, maintenance, alteration and repair of 
gas
-
fired
appliances shall be regulated by the 
New 
York City
Fuel Gas Code
. 
901.2 General. 
The 
requirements of this chapter shall apply to the mechanical equipment and appliances regulated by 
this chapter, in addition to the other requirements of this code, and installed in accordance with the requirements of 
NFPA 31, NFPA 54 and NFPA 211
. 
901.3 Sol
id fuel
-
burning fireplaces and appliances.
All solid fuel
-
burning fireplaces and appliances shall be in-
stalled, altered and maintained in buildings in conformity with the applicable provisions of the 
New York City Air 
Pollution Control
Code
and no new solid fuel
-
burning fireplaces or appliances shall be permitted except those that 
burn the types of fuel allowed by such code.
901.4 Hazardous locations. 
Fireplaces and solid fuel
-
burning appliances shall not be installed in hazardous locations.
901.5 Inspectio
n of solid fuel
-
burning heating appliances, chimneys and flues.
Inspections of solid fuel
-
burning 
heating appliances, chimneys and flues shall be in accordance with the 
New York City Building Code
.
901.6 Fireplaces.
Fireplaces (solid
-
fuel
-
type or ANSI Z21.50) shall be installed with tight
-
fitting noncombustible 
fireplace doors to control infiltration losses in construction types listed here:
1.
Masonry or factory
-
built fireplaces designed to allow an open burn.
2.
Decorative appliances (ANSI Z21.60 gas
-
log 
style unit) installed in a vented solid fuel fireplace.
3.
Vented decorative gas fireplace appliances (ANSI Z21.50 unit).
Fireplaces shall be provided with a source of combustion air as required by the fireplace construction provisions of 
the 
New York City
Building Code
and Chapter 7 of this code.
SECTION 
MC 902
MASONRY FIREPLACES
902.1 General. 
Masonry fireplaces shall be constructed in accordance with the 
New York City Building Code
. 
902.2 Fireplace accessories. 
Listed and labeled fireplace accessories shall be installed in accordance with the condi-
tions of the listing and the manufacturer’s instructions. Fireplace accessories shall comply with UL 907.
SECTION MC 903
FACTORY
-
BUILT FIREPLACES
903.1 General. 
Factory
-
built fireplaces shall be li
sted and labeled and shall be installed in accordance with the con-
ditions of the listing. Factory
-
built fireplaces shall be tested in accordance with UL 127.
SPECIFIC APPLIANCES AND EQUIPMENT
903.2 Hearth extensions. 
Hearth extensions of approved factory
-
built fireplaces shall be installed
in accordance with 
the listing of the fireplace. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed 
and labeled hearth extensions shall comply with UL 1618.
903.3 Unvented gas log heaters.
The installation of 
unv
ented gas
-
fired space heaters, gas stoves, gas logs, gas fire-
places and gas 
fireplace 
inserts is prohibited
.
903.4 Gasketed fireplace doors. 
A gasketed fireplace door shall not be installed on a factory
-
built fireplace except 
where the fireplace system has
been specifically tested, listed and labeled for such use in accordance with UL 127.
903.5 Flues.
Separate flues shall be provided for every
fireplace
and 
fireplace 
stove.
903.6 Combustion air supply.
All installations of
factory
-
built 
fireplaces shall co
mply
with 
the requirements of the 
New York City Energy Conservation Code
concerning combustion air supply
.
SECTION 
MC 
904
PELLET FUEL
-
BURNING APPLIANCES
904.1 General. 
Pellet fuel
-
burning appliances shall be listed and labeled in accordance with ASTM E 
1509 and shall 
be installed in accordance with the terms of the listing.
If permitted, such appliances shall be operated in accordance 
with the 
New York City Air Pollution Control Code.
SECTION 
MC 
905
FIREPLACE STOVES AND ROOM HEATERS
905.1 General. 
Fireplace stoves and solid
-
fuel
-
type room heaters shall be listed and labeled and shall be installed in 
accordance with the conditions of the listing. Fireplace stoves shall be tested in accordance with UL 737. Solid
-
fuel
-
type room heaters s
hall be tested in accordance with UL 1482. Fireplace inserts intended for installation in fireplaces 
shall be listed and labeled in accordance with the requirements of UL 1482 and shall be installed in accordance with 
the manufacturer’s instructions.
905.2
Connection to fireplace. 
The connection of solid fuel appliances to chimney flues serving fireplaces shall 
comply with Sections 801.7 and 801.10.
905.3 Hearth extensions. 
Hearth extensions for fireplace stoves shall be installed in accordance with the lis
ting of 
the fireplace stove. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed and 
labeled hearth extensions shall comply with UL 1618.
905.4 Air pollution.
All 
fireplace stoves 
and room heaters shall comply with
the requirements of the 
New York City 
Air Pollution Control Code
.
905.5 Combustion air supply.
All fireplace stoves and room heaters shall comply with the requirements of the 
New 
York City Energy Conservation Code
concerning combustion air supply.
905.6 F
lues.
Separate flues and independent combustion air source 
shall be 
provided for every fireplace stove and 
room heater. Combustion air shall be provided
in accordance with the 
manufacturer’s recommendations and Chapter 
7
.
SECTION 
MC 
906
FACTORY
-
BUILT BARBECUE APPLIANCES
‡‡‡
906.1 General. 
Factory
-
built barbecue appliances shall be listed and labeled for the use intended and shall be 
installed in accordance with the manufacturer’s instructions, this chapter
, 
the 
New York City
Fuel Gas Code
,
and 
Chapters 3, 5, 7, and 8 of this code
. 
The construction and installation of chimneys serving barbeque appliances shall 
comply with all construction and installation requirements of fireplaces.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
907
INCINERATORS AND CREMATORIES
907.1 General. 
Incinerators and crematories shall be listed and labeled in accordance with UL 791 and 
NFPA 82 and 
shall be installed in accordance with the manufacturer’s
instructions.
907.2 Compliance.
All incinerators and crematories shall be installed, altered and mai
ntained in buildings in con-
formity with the applicable provisions of the 
Administrative Code
and the 
New York City Air Pollution Control Code
.
SECTION 
MC 
908
COOLING TOWERS, EVAPORATIVE CONDENSERS AND FLUID COOLERS
908.1 General. 
A cooling tower used in 
conjunction with an air
-
conditioning appliance shall be installed in accordance 
with the manufacturer’s instructions.
908.2 Access. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with ready access.
908.3 Location. 
Cooling towers
, evaporative condensers and fluid coolers shall be located to prevent the discharge 
vapor plumes from entering occupied spaces. Plume discharges shall be not less than 5 feet (1524 mm) above or 20 
feet (6096 mm) away from any ventilation inlet to a buildi
ng. Location on the property shall be as required for build-
ings in accordance with the 
New York City
Building Code
.
908.3.1 Indoor.
Cooling towers, evaporative condensers and fluid coolers located inside of buildings shall be 
constructed of noncombustible 
materials including fill and drift eliminators.
908.3.2 Outside.
Cooling towers shall be constructed of noncombustible materials.
Exceptions:
1.
Fill and drift eliminators of limited combustible materials may be considered noncombustible if the cool-
ing to
wers are provided with automatic sprinkler protection in compliance with Chapter 9 of the 
New York 
City Building Code
.
2.
Fill and drift eliminators for any individual cooling tower cell may be made of limited combustible mate-
rials provided all the followi
ng conditions are met:
2.1.
The cooling tower is located on a building of construction Types IA or IB of the 
New York City 
Building Code
.
2.2.
The cooling tower cell is located at least 30 feet (9144 mm) away from windows or fresh air intakes 
which are at 
an elevation above the roof on which the cooling tower is located, whether in the same 
building or in an adjoining building.
2.3.
The cooling tower cell is located not less than 15 feet (4572 mm) from the lot line.
2.4.
The cooling tower cell is located no
t less than 10 feet (3048 mm) from any chimney, except that the 
distance shall not be less than 20 feet (6096 mm) from a chimney venting products of combustion 
other than from gas
-
or oil
-
fired appliances, whether on the same or an adjoining building.
908.
4 Support and anchorage.   
Supports for cooling towers, evaporative condensers and fluid coolers shall be de-
signed in accordance with the 
New York City
Building Code. 
Seismic restraints shall be as required by the 
New York 
City
Building Code
. Adequate vibra
tion isolation shall be provided in accordance with the manufacturer’s guidelines 
and as required for the supporting structure, and in accordance with Sections 313.3.7 and 313.3.8.
908.5 Water supply. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with an approved 
water supply, sized for peak demand. The quality of water shall be provided in accordance with the equipment man-
ufacturer’s recommendations. The piping system and p
rotection of the potable water supply system shall be installed 
as required by the 
New York City
Plumbing Code
.
908.6 Drainage. 
Drains, overflows and blowdown provisions shall be indirectly connected to an approved disposal 
location. Discharge of 
chemical waste shall be approved by the appropriate regulatory authority.
908.7 Refrigerants and hazardous fluids. 
Heat exchange equipment that contains a refrigerant and that is part of a 
closed refrigeration system shall comply with Chapter 11. Heat 
exch
ange 
equipment containing heat transfer fluids 
SPECIFIC APPLIANCES AND EQUIPMENT
which are combustible or hazardous shall comply with the 
New York City
Fire Code
. Flammable heat transfer fluids 
are prohibited
.
908.8 Cooling towers. 
Cooling towers, both open circuit and closed circuit type,
and evaporative condensers shall 
comply with Sections 908.8.1 and 908.8.2.
908.8.1 Conductivity or flow
-
based control of cycles of concentration. 
Cooling towers and evaporative conden-
sers shall include controls that automate system bleed based on conducti
vity, fraction of metered makeup volume, 
metered bleed volume, recirculating pump run time or bleed time.
908.8.2 Drift eliminators. 
Cooling towers and evaporative condensers shall be equipped with drift eliminators that 
have a maximum drift rate of 0.005 
percent of the circulated water flow rate as established in the equipment’s 
design specifications.
‡‡‡
908.9
Additional requirements. 
The installation and maintenance of all cooling towers, evaporative condensers, 
and fluid coolers shall comply with the req
uirements of Article 317 of Chapter 3 of Title 
28 
of the 
Administrative 
Code
.
SECTION 
MC 
909
VENTED WALL FURNACES
909.1 General. 
Vented wall furnaces shall be installed in accordance with their listing and the manufacturer’s instruc-
tions. 
Oil
-
fired furnaces shall be tested in accordance with UL 730.
909.2 Location. 
Vented wall furnaces shall be located so as not to cause a fire hazard to walls, floors, combustible 
furnishings or doors. Vented wall furnaces installed between bathrooms and ad
joining rooms shall not circulate air 
from bathrooms to other parts of the building.
909.3 Door swing. 
Vented wall furnaces shall be located so that a door cannot swing within 12 inches (304.8 mm) of 
an air inlet or air outlet of such furnace measured at r
ight angles to the opening. Doorstops or door closers shall not 
be installed to obtain this clearance.
909.4 Ducts prohibited. 
Ducts shall not be attached to wall furnaces. Casing extension boots shall not be installed 
unless listed as part of the applianc
e.
909.5 Manual shutoff valve. 
A manual shutoff valve shall be installed ahead of all controls.
909.6 Access. 
Vented wall furnaces shall be provided with access for cleaning of heating surfaces, removal of burners, 
replacement of sections, motors, controls
, filters and other working parts, and for adjustments and lubrication of parts 
requiring such attention. Panels, grilles and access doors that must be removed for normal servicing operations shall 
not be attached to the building construction.
SECTION 
MC 
9
10
FLOOR FURNACES
910.1 General. 
Floor furnaces shall be installed in accordance with their listing and the manufacturer’s instructions. 
Oil
-
fired furnaces shall be tested in accordance with UL 729.
Unvented floor furnaces are prohibited.
910.2 Placement. 
Floor furnaces shall not be installed in 
any corridor, in 
the floor of any aisle or passageway of any 
auditorium, public hall, place of assembly, or in any egress element from any such room or space.
With the exception of wall register models, a floor furn
ace shall not be placed closer than 6 inches (152.4 mm) to 
the nearest wall, and wall register models shall not be placed closer than 6 inches (152.4 mm) to a corner.
The furnace shall be placed such that a drapery or similar combustible object will not be
nearer than 12 inches 
(304.8 mm) to any portion of the register of the furnace. Floor furnaces shall not be installed in concrete floor con-
struction built on grade. The controlling thermostat for a floor furnace shall be located within the same room or sp
ace 
as the floor furnace or shall be located in an adjacent room or space that is permanently open to the room or space 
containing the floor furnace.
Floor furnaces shall be located so as to be accessible. Floor furnaces shall be installed 
SPECIFIC APPLIANCES AND EQUIPMENT
only in floors o
f noncombustible construction having at least a 2
-
hour fire rating, except as where required for one
-
and two
-
family dwellings.
910.3 Bracing. 
The floor around the furnace shall be braced and headed with a support framework design in accord-
ance with the 
Ne
w York City
Building Code
.
910.4 Clearance. 
The lowest portion of the floor furnace shall have not less than a 6
-
inch (152.4 mm) clearance from 
the grade level; except where the lower 6
-
inch (152.4 mm) portion of the floor furnace is sealed by the 
manufacturer 
to prevent entrance of water, the minimum clearance shall be reduced to not less than 2 inches (50.8 mm). Where 
these clearances are not present, the ground below and to the sides shall be excavated to form a pit under the furnace 
so that the 
required clearance is provided beneath the lowest portion of the furnace. A 12
-
inch (304.8 mm) minimum 
clearance shall be provided on all sides except the control side, which shall have an 18
-
inch (457.2 mm) minimum 
clearance.
910.5 Enclosures.
Enclosures 
of floor furnaces shall be constructed entirely of noncombustible materials with a fire
-
resistance rating of at least 1 hour and shall be provided with adequate outdoor air to ensure proper combustion. The 
enclosure shall be provided with adequate means of
access for servicing the furnace.
910.6 Duct temperature.
The outlet duct temperature of warm air heating furnaces shall not be greater than 250°F 
(121.1°C).
910.7 One
-
and two
-
family dwellings.
Floor furnace enclosures shall be constructed of noncombust
ible materials 
with a fire
-
resistance rating of at least 1 hour. Means shall be provided for supporting the furnace when the grille is 
removed. Clearances shall be provided as per NFPA 54.
SECTION 
MC 
911
DUCT FURNACES AND HEATERS
911.1 General. 
Duct furnac
es and heaters shall be installed in accordance with the manufacturer’s instructions. Elec-
tric 
furnaces and duct heaters
shall
comply with UL 
1995 or UL 1996, as applicable. Unvented fuel
-
fired duct fur-
naces are prohibited
.
911.2 Access panels.
Ducts conne
cted to duct furnaces shall have removable access panels on both the upstream and 
downstream sides of the furnace.
911.3 Location of draft hood and controls.
The controls, combustion air inlets and draft hoods for duct furnaces 
shall be located outside of 
the ducts. The draft hood shall be located in the same enclosure from which combustion 
air is taken.
911.4 Circulating air.
Where a duct furnace is installed so that supply ducts convey air to areas outside the space 
containing the furnace, the 
return air shall also be conveyed by a duct(s) sealed to the furnace casing and terminating 
outside the space containing the furnace. The duct furnace shall be installed on the positive pressure side of the 
circulating air blower.
911.5 Duct temperature.
T
he outlet duct temperature of duct furnaces shall not be greater than 250°F (121.1°C).
SECTION 
MC 
912
INFRARED RADIANT HEATERS
912.1 General. 
Electric infrared radiant heaters shall comply with UL 499.
912.2 Support. 
Infrared radiant heaters shall be fixed
in a position independent of fuel and electric supply lines. 
Hangers and brackets shall be noncombustible material.
912.3 Clearances. 
Heaters shall be installed with clearances from combustible material in accordance with the man-
ufacturer’s instructions.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
913
CLOTHES DRYERS
913.1 General. 
Clothes dryers shall be installed in accordance with the manufacturer’s instructions and shall comply 
with the following as applicable: 
1.
Electric commercial clothes dryers shall be tested in accordance with U
L 1240. 
2.
Electric residential clothes dryers shall be tested in accordance with UL 2158. 
3.
Electric coin
-
, ticket
-
, or card
-
operated clothes dryers shall be tested in accordance with UL 2158.
913.2 Exhaust required. 
Clothes dryers shall be exhausted i
n accordance with Section 504.
Exception:
Electric clothes dryers provided with a condensate drain. Spaces containing such dryers shall be pro-
vided with transfer air openings or other approved means to provide adequate air exchanges with adjacent spaces.
9
13.3 Clearances. 
Clothes dryers shall be installed with clearance to combustibles in accordance with the manufac-
turer’s instructions.
SECTION 
MC 
914
SAUNA HEATERS
914.1 Location and protection. 
Sauna heaters shall be located so as to minimize the possibili
ty of accidental contact 
by a person in the room.
914.1.1 Guards. 
Sauna heaters shall be protected from accidental contact by an approved guard or barrier of ma-
terial having a low coefficient of thermal conductivity. The guard shall not substantially affec
t the transfer of heat 
from the heater to the room.
914.2 Installation. 
Sauna heaters shall be listed and labeled in accordance with UL 875 and shall be installed in 
accordance with their listing and the manufacturer’s instructions.
914.3 Access. 
Panels, g
rilles and access doors that are required to be removed for normal servicing operations shall 
not be attached to the building.
914.4 Heat and time controls. 
Sauna heaters shall be equipped with a thermostat that will limit room temperature to 
194°F (90°C).
If the thermostat is not an integral part of the sauna heater, the heat
-
sensing element shall be located 
within 6 inches (152.4 mm) of the ceiling. If the heat
-
sensing element is a capillary tube and bulb, the assembly shall 
be attached to the wall or oth
er support, and shall be protected against physical damage.
914.4.1 Timers. 
A timer, if provided to control main burner operation, shall have a maximum operating time of 1 
hour. The control for the timer shall be located outside the sauna room.
914.5 
Sauna room. 
A ventilation opening into the sauna room shall be provided. The opening shall be not less than 
4 inches by 8 inches (101.6 mm by 203.2 mm) located near the top of the door into the sauna room.
914.5.1 Warning notice. 
The following permanent no
tice, constructed of approved material, shall be mechanically 
attached to the sauna room on the outside:
WARNING: DO NOT EXCEED 30 MINUTES IN SAUNA. EXCESSIVE EXPOSURE CAN BE HARMFUL 
TO HEALTH. ANY PERSON WITH POOR HEALTH SHOULD CONSULT A PHYSICIAN BEFORE 
US-
ING SAUNA.
The words shall contrast with the background and the wording shall be in letters not less than
1
/
4
-
inch (6.4 mm) 
high.
Exception: 
This section shall not apply to one
-
and two
-
family dwellings.
SECTION 
MC 
915
ENGINE AND GAS TURBINE
-
POWERED EQUI
PMENT AND APPLIANCES
SPECIFIC APPLIANCES AND EQUIPMENT
915.1 General. 
The installation of liquid
-
fueled stationary internal combustion engines and gas turbines, including 
combustion air, 
exhaust, fuel storage and piping, shall meet the requirements of NFPA 37
and Chapters 7, 8, and 13 
of t
his code
. Stationary engine generator assemblies shall meet the requirements of UL 2200.
915.2 Powered equipment and appliances. 
Permanently installed equipment and appliances powered by internal 
combustion engines and turbines shall be installed in 
accordance with the manufacturer’s instructions and NFPA 37.
SECTION 
MC 
916
POOL AND SPA HEATERS
916.1 General. 
Pool and spa heaters shall be installed in accordance with the manufacturer’s instructions. Oil
-
fired 
pool and spa heaters shall be tested in ac
cordance with UL 726. Electric pool and spa heaters shall be tested in accord-
ance with UL 1261.
SECTION 
MC 
917
COOKING APPLIANCES
917.1 Cooking appliances. 
Cooking appliances that are designed for permanent installation, including ranges, ovens, 
stoves, br
oilers, grills, fryers and griddles shall be listed, labeled and installed in accordance with the manufacturer’s 
instructions.
Oil
-
fired cooking appliances are prohibited.
Commercial electric cooking appliances shall be listed and 
labeled in accordance wit
h UL 197. Household electric ranges shall be listed and labeled in accordance with UL 858. 
Microwave cooking appliances shall be listed and labeled in accordance with UL 923. Oil
-
burning stoves shall be 
listed and labeled in accordance with UL 896. Solid
-
f
uel
-
fired ovens shall be listed and labeled in accordance with 
UL 2162.
917.2 Prohibited location.
Cooking appliances designed, tested, listed and labeled for use in commercial occupan-
cies shall not be installed within dwelling units or within any area whe
re domestic cooking operations occur.
917.3 Domestic appliances. 
Cooking appliances installed within dwelling units and within areas where domestic 
cooking operations occur shall be listed and labeled as 
household
-
type
appliances for domestic use.
917.4 Do
mestic range installation.
Domestic ranges installed on combustible floors shall be set on their own bases 
or legs and shall be installed with clearances of not less than that shown on the label.
917.5 Open
-
top broiler unit hoods.
A ventilating hood 
shall be provided above a domestic open
-
top broiler unit, 
unless otherwise listed for forced down draft ventilation.
917.5.1 Clearances.
A minimum clearance of 24 inches (
609.6
mm) shall be maintained between the cooking top 
and combustible material above 
the hood. The hood shall be at least as wide as the open
-
top broiler unit and be 
centered over the unit.
917.6 Commercial cooking appliance venting.
Commercial cooking appliances, other than those exempted by Sec-
tion 501.8 of the 
New York City Fuel Gas Cod
e
, shall be vented by connecting the appliance to a vent or chimney in 
accordance with this code and the appliance manufacturer’s instructions or the appliance shall be vented in accord-
ance with Section 505.1.1 of the 
New York City Fuel Gas Code
.
917.7 Dom
estic ventilation.
When a hood is required for proper ventilation of a domestic cooking appliance, the 
exhaust and make
-
up air systems shall be properly engineered and designed in accordance with Chapter 5.
SECTION 
MC 
918
FORCED
-
AIR WARM
-
AIR FURNACES
918.1
Forced
-
air furnaces.   
Oil
-
fired furnaces shall be tested in accordance with UL 727. Electric furnaces shall be 
tested in accordance with UL 1995. Solid fuel furnaces shall be tested in accordance with UL 391. Forced
-
air furnaces 
shall be installed in acco
rdance with the listings and the manufacturer’s 
instructions. Forced
-
air warm
-
air furnaces 
shall be installed in accordance with the requirements of NFPA 31 and the 
New York City Fuel Gas Code
. Unvented 
fuel
-
fired furnaces are prohibited
.
SPECIFIC APPLIANCES AND EQUIPMENT
918.2 Heat pumps.
Electric heat pumps shall be tested in accordance with UL 1995 or UL 60335
-
2
-
40.
918.3 Dampers. 
Volume dampers shall not be placed in the air inlet to a furnace in a manner that will reduce the 
required air to the furnace.
918.4 Circulating air ducts for 
forced
-
air warm
-
air furnaces.   
Circulating air for fuel
-
burning, forced
-
air
-
type, 
warm
-
air furnaces shall be conducted into the blower housing from outside the furnace enclosure by continuous air
-
tight ducts.
918.5 Outdoor and return air openings.
Outdoor 
intake openings shall be located in accordance with Section 401.4. 
Return air openings shall be located in accordance with Section 618.4 of the 
New York City Fuel Gas Code
.
918.6 Outdoor opening protection.  
Outdoor air intake openings shall be 
protected in accordance with Section 
401.5.
SECTION 
MC 
919
CONVERSION BURNERS
919.1 Conversion burners. 
The installation of conversion burners shall conform to ANSI Z21.8 and the applicable 
requirements of Chapter 10 of this code.
SECTION 
MC 
920
UNIT HEATE
RS
920.1 General. 
Unit heaters shall be installed in accordance with the listing and the manufacturer’s instructions. Oil
-
fired unit heaters shall be tested in accordance with UL 731.
920.2 Support. 
Suspended
-
type unit heaters shall be supported by element
s that are designed and constructed to ac-
commodate the weight and dynamic loads. Hangers and brackets shall be of noncombustible material. 
Suspended
-
type
oil
-
fired unit heaters shall be installed in accordance with NFPA 31.
920.3 Ductwork. 
A unit heater sh
all not be attached to a warm
-
air duct system unless listed for such installation.
SECTION 
MC 
921
VENTED ROOM HEATERS
921.1 General. 
Vented room heaters shall be listed and labeled and shall be installed in accordance with the conditions 
of the listing and
the manufacturer’s instructions.
SECTION 
MC 
922
KEROSENE AND OIL
-
FIRED STOVES
922.1 General.
The installation of kerosene and oil
-
fired stoves is prohibited.
SECTION 
MC 
923
CERAMIC KILNS
923.1 General.
Kilns shall be listed and labeled unless 
otherwise approved in accordance with Section 105.1. Electric 
kilns shall comply with UL 499. The approval of unlisted appliances in accordance with Section 105.1 shall be based 
on approved engineering evaluation.
923.1.1 Installation.   
Kilns shall be inst
alled in accordance with the manufacturer’s instructions and the provi-
sions of this code.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
924
STATIONARY FUEL CELL POWER 
PLANTS
924.1 General. 
Stationary fuel cell power 
plants
having a power output not exceeding 
10 MW,
shall be tested in 
accordance with ANSI/CSA America FC1 and shall be installed in accordance with the manufacturer’s instructions
and
NFPA 853. 
Such fuel cell plants shall be powered by hydrogen derived on
-
site from piped natural gas, except 
where the sto
rage, handling and use of hydrogen or other flammable gas is authorized by the 
New York City
Fire 
Code
for such purposes and approved by the fire commissioner.
SECTION MC
925
MASONRY HEATERS
925.1 General. 
Masonry heaters shall be constructed in accordance
with the 
New York City
Building Code.
SECTION MC 926
GASEOUS HYDROGEN SYSTEMS
926.1 Installation. 
The installation of gaseous hydrogen systems shall be in accordance with the applicable require-
ments of this code, the 
New York City Fire Code
, the 
New York 
City Fuel Gas Code
and the 
New York City Building 
Code
.
SECTION MC 927
ELECTRIC 
RADIANT HEATING SYSTEMS
927.1 General. 
Electric radiant heating systems shall be installed in accordance with the manufacturer’s instructions 
and shall be listed for the applic
ation.
927.2 Clearances. 
Clearances for radiant heating panels or elements to any wiring, outlet boxes and junction boxes 
used for installing electrical devices or mounting luminaires shall be in accordance with the 
New York City Building 
Code
and the 
New 
York City Electrical Code.
927.3 Installation on wood or steel framing. 
Radiant panels installed on wood or steel framing shall conform to the 
following requirements:
1.
Heating panels shall be installed parallel to framing members and secured to the surfa
ce of framing members or 
shall be mounted between framing members.
2.
Mechanical fasteners shall penetrate only the unheated portions provided for this purpose. Panels shall not be 
fastened at any point closer than 
1
/
4
inch (6.4 mm) to an element. Other methods of attachment of the panels 
shall be in accordance with the panel installation instructions.
3.
Unless listed and labeled for field cutting, heating panels shall be installed as complete units.
927.4 Installation
in concrete or masonry. 
Radiant heating systems installed in concrete or masonry shall conform 
to the following requirements:
1.
Radiant heating systems shall be identified as being suitable for the installation, and shall be secured in place as 
specified
in the manufacturer’s instructions.
2.
Radiant heating panels and radiant heating panel sets shall not be installed where they bridge expansion joints 
unless they are protected from expansion and contraction.
927.5 Finish surfaces. 
Finish materials instal
led over radiant heating panels and systems shall be installed in accord-
ance with the manufacturer’s instructions. Surfaces shall be secured so that fasteners do not pierce the radiant heating 
elements.
SECTION MC 928
EVAPORATIVE COOLERS
‡‡‡ Chapter 9 was amended by 
Local Law 
77 
of 2023
. This law has an effective
 date of June 10, 2023.
CHAPTER 9
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION MC 901
GENERAL
901.1 Scope. 
This chapter shall govern the approval, design, installation, construction, maintenance, alteration and 
repair of the appliances and equipment specific
ally identified herein and factory
-
built fireplaces. The approval, design, 
installation, construction, maintenance, alteration and repair of 
gas
-
fired
appliances shall be regulated by the 
New 
York City
Fuel Gas Code
. 
901.2 General. 
The 
requirements of this chapter shall apply to the mechanical equipment and appliances regulated by 
this chapter, in addition to the other requirements of this code, and installed in accordance with the requirements of 
NFPA 31, NFPA 54 and NFPA 211
. 
901.3 Sol
id fuel
-
burning fireplaces and appliances.
All solid fuel
-
burning fireplaces and appliances shall be in-
stalled, altered and maintained in buildings in conformity with the applicable provisions of the 
New York City Air 
Pollution Control
Code
and no new solid fuel
-
burning fireplaces or appliances shall be permitted except those that 
burn the types of fuel allowed by such code.
901.4 Hazardous locations. 
Fireplaces and solid fuel
-
burning appliances shall not be installed in hazardous locations.
901.5 Inspectio
n of solid fuel
-
burning heating appliances, chimneys and flues.
Inspections of solid fuel
-
burning 
heating appliances, chimneys and flues shall be in accordance with the 
New York City Building Code
.
901.6 Fireplaces.
Fireplaces (solid
-
fuel
-
type or ANSI Z21.50) shall be installed with tight
-
fitting noncombustible 
fireplace doors to control infiltration losses in construction types listed here:
1.
Masonry or factory
-
built fireplaces designed to allow an open burn.
2.
Decorative appliances (ANSI Z21.60 gas
-
log 
style unit) installed in a vented solid fuel fireplace.
3.
Vented decorative gas fireplace appliances (ANSI Z21.50 unit).
Fireplaces shall be provided with a source of combustion air as required by the fireplace construction provisions of 
the 
New York City
Building Code
and Chapter 7 of this code.
SECTION 
MC 902
MASONRY FIREPLACES
902.1 General. 
Masonry fireplaces shall be constructed in accordance with the 
New York City Building Code
. 
902.2 Fireplace accessories. 
Listed and labeled fireplace accessories shall be installed in accordance with the condi-
tions of the listing and the manufacturer’s instructions. Fireplace accessories shall comply with UL 907.
SECTION MC 903
FACTORY
-
BUILT FIREPLACES
903.1 General. 
Factory
-
built fireplaces shall be li
sted and labeled and shall be installed in accordance with the con-
ditions of the listing. Factory
-
built fireplaces shall be tested in accordance with UL 127.
SPECIFIC APPLIANCES AND EQUIPMENT
903.2 Hearth extensions. 
Hearth extensions of approved factory
-
built fireplaces shall be installed
in accordance with 
the listing of the fireplace. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed 
and labeled hearth extensions shall comply with UL 1618.
903.3 Unvented gas log heaters.
The installation of 
unv
ented gas
-
fired space heaters, gas stoves, gas logs, gas fire-
places and gas 
fireplace 
inserts is prohibited
.
903.4 Gasketed fireplace doors. 
A gasketed fireplace door shall not be installed on a factory
-
built fireplace except 
where the fireplace system has
been specifically tested, listed and labeled for such use in accordance with UL 127.
903.5 Flues.
Separate flues shall be provided for every
fireplace
and 
fireplace 
stove.
903.6 Combustion air supply.
All installations of
factory
-
built 
fireplaces shall co
mply
with 
the requirements of the 
New York City Energy Conservation Code
concerning combustion air supply
.
SECTION 
MC 
904
PELLET FUEL
-
BURNING APPLIANCES
904.1 General. 
Pellet fuel
-
burning appliances shall be listed and labeled in accordance with ASTM E 
1509 and shall 
be installed in accordance with the terms of the listing.
If permitted, such appliances shall be operated in accordance 
with the 
New York City Air Pollution Control Code.
SECTION 
MC 
905
FIREPLACE STOVES AND ROOM HEATERS
905.1 General. 
Fireplace stoves and solid
-
fuel
-
type room heaters shall be listed and labeled and shall be installed in 
accordance with the conditions of the listing. Fireplace stoves shall be tested in accordance with UL 737. Solid
-
fuel
-
type room heaters s
hall be tested in accordance with UL 1482. Fireplace inserts intended for installation in fireplaces 
shall be listed and labeled in accordance with the requirements of UL 1482 and shall be installed in accordance with 
the manufacturer’s instructions.
905.2
Connection to fireplace. 
The connection of solid fuel appliances to chimney flues serving fireplaces shall 
comply with Sections 801.7 and 801.10.
905.3 Hearth extensions. 
Hearth extensions for fireplace stoves shall be installed in accordance with the lis
ting of 
the fireplace stove. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed and 
labeled hearth extensions shall comply with UL 1618.
905.4 Air pollution.
All 
fireplace stoves 
and room heaters shall comply with
the requirements of the 
New York City 
Air Pollution Control Code
.
905.5 Combustion air supply.
All fireplace stoves and room heaters shall comply with the requirements of the 
New 
York City Energy Conservation Code
concerning combustion air supply.
905.6 F
lues.
Separate flues and independent combustion air source 
shall be 
provided for every fireplace stove and 
room heater. Combustion air shall be provided
in accordance with the 
manufacturer’s recommendations and Chapter 
7
.
SECTION 
MC 
906
FACTORY
-
BUILT BARBECUE APPLIANCES
‡‡‡
906.1 General. 
Factory
-
built barbecue appliances shall be listed and labeled for the use intended and shall be 
installed in accordance with the manufacturer’s instructions, this chapter
, 
the 
New York City
Fuel Gas Code
,
and 
Chapters 3, 5, 7, and 8 of this code
. 
The construction and installation of chimneys serving barbeque appliances shall 
comply with all construction and installation requirements of fireplaces.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
907
INCINERATORS AND CREMATORIES
907.1 General. 
Incinerators and crematories shall be listed and labeled in accordance with UL 791 and 
NFPA 82 and 
shall be installed in accordance with the manufacturer’s
instructions.
907.2 Compliance.
All incinerators and crematories shall be installed, altered and mai
ntained in buildings in con-
formity with the applicable provisions of the 
Administrative Code
and the 
New York City Air Pollution Control Code
.
SECTION 
MC 
908
COOLING TOWERS, EVAPORATIVE CONDENSERS AND FLUID COOLERS
908.1 General. 
A cooling tower used in 
conjunction with an air
-
conditioning appliance shall be installed in accordance 
with the manufacturer’s instructions.
908.2 Access. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with ready access.
908.3 Location. 
Cooling towers
, evaporative condensers and fluid coolers shall be located to prevent the discharge 
vapor plumes from entering occupied spaces. Plume discharges shall be not less than 5 feet (1524 mm) above or 20 
feet (6096 mm) away from any ventilation inlet to a buildi
ng. Location on the property shall be as required for build-
ings in accordance with the 
New York City
Building Code
.
908.3.1 Indoor.
Cooling towers, evaporative condensers and fluid coolers located inside of buildings shall be 
constructed of noncombustible 
materials including fill and drift eliminators.
908.3.2 Outside.
Cooling towers shall be constructed of noncombustible materials.
Exceptions:
1.
Fill and drift eliminators of limited combustible materials may be considered noncombustible if the cool-
ing to
wers are provided with automatic sprinkler protection in compliance with Chapter 9 of the 
New York 
City Building Code
.
2.
Fill and drift eliminators for any individual cooling tower cell may be made of limited combustible mate-
rials provided all the followi
ng conditions are met:
2.1.
The cooling tower is located on a building of construction Types IA or IB of the 
New York City 
Building Code
.
2.2.
The cooling tower cell is located at least 30 feet (9144 mm) away from windows or fresh air intakes 
which are at 
an elevation above the roof on which the cooling tower is located, whether in the same 
building or in an adjoining building.
2.3.
The cooling tower cell is located not less than 15 feet (4572 mm) from the lot line.
2.4.
The cooling tower cell is located no
t less than 10 feet (3048 mm) from any chimney, except that the 
distance shall not be less than 20 feet (6096 mm) from a chimney venting products of combustion 
other than from gas
-
or oil
-
fired appliances, whether on the same or an adjoining building.
908.
4 Support and anchorage.   
Supports for cooling towers, evaporative condensers and fluid coolers shall be de-
signed in accordance with the 
New York City
Building Code. 
Seismic restraints shall be as required by the 
New York 
City
Building Code
. Adequate vibra
tion isolation shall be provided in accordance with the manufacturer’s guidelines 
and as required for the supporting structure, and in accordance with Sections 313.3.7 and 313.3.8.
908.5 Water supply. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with an approved 
water supply, sized for peak demand. The quality of water shall be provided in accordance with the equipment man-
ufacturer’s recommendations. The piping system and p
rotection of the potable water supply system shall be installed 
as required by the 
New York City
Plumbing Code
.
908.6 Drainage. 
Drains, overflows and blowdown provisions shall be indirectly connected to an approved disposal 
location. Discharge of 
chemical waste shall be approved by the appropriate regulatory authority.
908.7 Refrigerants and hazardous fluids. 
Heat exchange equipment that contains a refrigerant and that is part of a 
closed refrigeration system shall comply with Chapter 11. Heat 
exch
ange 
equipment containing heat transfer fluids 
SPECIFIC APPLIANCES AND EQUIPMENT
which are combustible or hazardous shall comply with the 
New York City
Fire Code
. Flammable heat transfer fluids 
are prohibited
.
908.8 Cooling towers. 
Cooling towers, both open circuit and closed circuit type,
and evaporative condensers shall 
comply with Sections 908.8.1 and 908.8.2.
908.8.1 Conductivity or flow
-
based control of cycles of concentration. 
Cooling towers and evaporative conden-
sers shall include controls that automate system bleed based on conducti
vity, fraction of metered makeup volume, 
metered bleed volume, recirculating pump run time or bleed time.
908.8.2 Drift eliminators. 
Cooling towers and evaporative condensers shall be equipped with drift eliminators that 
have a maximum drift rate of 0.005 
percent of the circulated water flow rate as established in the equipment’s 
design specifications.
‡‡‡
908.9
Additional requirements. 
The installation and maintenance of all cooling towers, evaporative condensers, 
and fluid coolers shall comply with the req
uirements of Article 317 of Chapter 3 of Title 
28 
of the 
Administrative 
Code
.
SECTION 
MC 
909
VENTED WALL FURNACES
909.1 General. 
Vented wall furnaces shall be installed in accordance with their listing and the manufacturer’s instruc-
tions. 
Oil
-
fired furnaces shall be tested in accordance with UL 730.
909.2 Location. 
Vented wall furnaces shall be located so as not to cause a fire hazard to walls, floors, combustible 
furnishings or doors. Vented wall furnaces installed between bathrooms and ad
joining rooms shall not circulate air 
from bathrooms to other parts of the building.
909.3 Door swing. 
Vented wall furnaces shall be located so that a door cannot swing within 12 inches (304.8 mm) of 
an air inlet or air outlet of such furnace measured at r
ight angles to the opening. Doorstops or door closers shall not 
be installed to obtain this clearance.
909.4 Ducts prohibited. 
Ducts shall not be attached to wall furnaces. Casing extension boots shall not be installed 
unless listed as part of the applianc
e.
909.5 Manual shutoff valve. 
A manual shutoff valve shall be installed ahead of all controls.
909.6 Access. 
Vented wall furnaces shall be provided with access for cleaning of heating surfaces, removal of burners, 
replacement of sections, motors, controls
, filters and other working parts, and for adjustments and lubrication of parts 
requiring such attention. Panels, grilles and access doors that must be removed for normal servicing operations shall 
not be attached to the building construction.
SECTION 
MC 
9
10
FLOOR FURNACES
910.1 General. 
Floor furnaces shall be installed in accordance with their listing and the manufacturer’s instructions. 
Oil
-
fired furnaces shall be tested in accordance with UL 729.
Unvented floor furnaces are prohibited.
910.2 Placement. 
Floor furnaces shall not be installed in 
any corridor, in 
the floor of any aisle or passageway of any 
auditorium, public hall, place of assembly, or in any egress element from any such room or space.
With the exception of wall register models, a floor furn
ace shall not be placed closer than 6 inches (152.4 mm) to 
the nearest wall, and wall register models shall not be placed closer than 6 inches (152.4 mm) to a corner.
The furnace shall be placed such that a drapery or similar combustible object will not be
nearer than 12 inches 
(304.8 mm) to any portion of the register of the furnace. Floor furnaces shall not be installed in concrete floor con-
struction built on grade. The controlling thermostat for a floor furnace shall be located within the same room or sp
ace 
as the floor furnace or shall be located in an adjacent room or space that is permanently open to the room or space 
containing the floor furnace.
Floor furnaces shall be located so as to be accessible. Floor furnaces shall be installed 
SPECIFIC APPLIANCES AND EQUIPMENT
only in floors o
f noncombustible construction having at least a 2
-
hour fire rating, except as where required for one
-
and two
-
family dwellings.
910.3 Bracing. 
The floor around the furnace shall be braced and headed with a support framework design in accord-
ance with the 
Ne
w York City
Building Code
.
910.4 Clearance. 
The lowest portion of the floor furnace shall have not less than a 6
-
inch (152.4 mm) clearance from 
the grade level; except where the lower 6
-
inch (152.4 mm) portion of the floor furnace is sealed by the 
manufacturer 
to prevent entrance of water, the minimum clearance shall be reduced to not less than 2 inches (50.8 mm). Where 
these clearances are not present, the ground below and to the sides shall be excavated to form a pit under the furnace 
so that the 
required clearance is provided beneath the lowest portion of the furnace. A 12
-
inch (304.8 mm) minimum 
clearance shall be provided on all sides except the control side, which shall have an 18
-
inch (457.2 mm) minimum 
clearance.
910.5 Enclosures.
Enclosures 
of floor furnaces shall be constructed entirely of noncombustible materials with a fire
-
resistance rating of at least 1 hour and shall be provided with adequate outdoor air to ensure proper combustion. The 
enclosure shall be provided with adequate means of
access for servicing the furnace.
910.6 Duct temperature.
The outlet duct temperature of warm air heating furnaces shall not be greater than 250°F 
(121.1°C).
910.7 One
-
and two
-
family dwellings.
Floor furnace enclosures shall be constructed of noncombust
ible materials 
with a fire
-
resistance rating of at least 1 hour. Means shall be provided for supporting the furnace when the grille is 
removed. Clearances shall be provided as per NFPA 54.
SECTION 
MC 
911
DUCT FURNACES AND HEATERS
911.1 General. 
Duct furnac
es and heaters shall be installed in accordance with the manufacturer’s instructions. Elec-
tric 
furnaces and duct heaters
shall
comply with UL 
1995 or UL 1996, as applicable. Unvented fuel
-
fired duct fur-
naces are prohibited
.
911.2 Access panels.
Ducts conne
cted to duct furnaces shall have removable access panels on both the upstream and 
downstream sides of the furnace.
911.3 Location of draft hood and controls.
The controls, combustion air inlets and draft hoods for duct furnaces 
shall be located outside of 
the ducts. The draft hood shall be located in the same enclosure from which combustion 
air is taken.
911.4 Circulating air.
Where a duct furnace is installed so that supply ducts convey air to areas outside the space 
containing the furnace, the 
return air shall also be conveyed by a duct(s) sealed to the furnace casing and terminating 
outside the space containing the furnace. The duct furnace shall be installed on the positive pressure side of the 
circulating air blower.
911.5 Duct temperature.
T
he outlet duct temperature of duct furnaces shall not be greater than 250°F (121.1°C).
SECTION 
MC 
912
INFRARED RADIANT HEATERS
912.1 General. 
Electric infrared radiant heaters shall comply with UL 499.
912.2 Support. 
Infrared radiant heaters shall be fixed
in a position independent of fuel and electric supply lines. 
Hangers and brackets shall be noncombustible material.
912.3 Clearances. 
Heaters shall be installed with clearances from combustible material in accordance with the man-
ufacturer’s instructions.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
913
CLOTHES DRYERS
913.1 General. 
Clothes dryers shall be installed in accordance with the manufacturer’s instructions and shall comply 
with the following as applicable: 
1.
Electric commercial clothes dryers shall be tested in accordance with U
L 1240. 
2.
Electric residential clothes dryers shall be tested in accordance with UL 2158. 
3.
Electric coin
-
, ticket
-
, or card
-
operated clothes dryers shall be tested in accordance with UL 2158.
913.2 Exhaust required. 
Clothes dryers shall be exhausted i
n accordance with Section 504.
Exception:
Electric clothes dryers provided with a condensate drain. Spaces containing such dryers shall be pro-
vided with transfer air openings or other approved means to provide adequate air exchanges with adjacent spaces.
9
13.3 Clearances. 
Clothes dryers shall be installed with clearance to combustibles in accordance with the manufac-
turer’s instructions.
SECTION 
MC 
914
SAUNA HEATERS
914.1 Location and protection. 
Sauna heaters shall be located so as to minimize the possibili
ty of accidental contact 
by a person in the room.
914.1.1 Guards. 
Sauna heaters shall be protected from accidental contact by an approved guard or barrier of ma-
terial having a low coefficient of thermal conductivity. The guard shall not substantially affec
t the transfer of heat 
from the heater to the room.
914.2 Installation. 
Sauna heaters shall be listed and labeled in accordance with UL 875 and shall be installed in 
accordance with their listing and the manufacturer’s instructions.
914.3 Access. 
Panels, g
rilles and access doors that are required to be removed for normal servicing operations shall 
not be attached to the building.
914.4 Heat and time controls. 
Sauna heaters shall be equipped with a thermostat that will limit room temperature to 
194°F (90°C).
If the thermostat is not an integral part of the sauna heater, the heat
-
sensing element shall be located 
within 6 inches (152.4 mm) of the ceiling. If the heat
-
sensing element is a capillary tube and bulb, the assembly shall 
be attached to the wall or oth
er support, and shall be protected against physical damage.
914.4.1 Timers. 
A timer, if provided to control main burner operation, shall have a maximum operating time of 1 
hour. The control for the timer shall be located outside the sauna room.
914.5 
Sauna room. 
A ventilation opening into the sauna room shall be provided. The opening shall be not less than 
4 inches by 8 inches (101.6 mm by 203.2 mm) located near the top of the door into the sauna room.
914.5.1 Warning notice. 
The following permanent no
tice, constructed of approved material, shall be mechanically 
attached to the sauna room on the outside:
WARNING: DO NOT EXCEED 30 MINUTES IN SAUNA. EXCESSIVE EXPOSURE CAN BE HARMFUL 
TO HEALTH. ANY PERSON WITH POOR HEALTH SHOULD CONSULT A PHYSICIAN BEFORE 
US-
ING SAUNA.
The words shall contrast with the background and the wording shall be in letters not less than
1
/
4
-
inch (6.4 mm) 
high.
Exception: 
This section shall not apply to one
-
and two
-
family dwellings.
SECTION 
MC 
915
ENGINE AND GAS TURBINE
-
POWERED EQUI
PMENT AND APPLIANCES
SPECIFIC APPLIANCES AND EQUIPMENT
915.1 General. 
The installation of liquid
-
fueled stationary internal combustion engines and gas turbines, including 
combustion air, 
exhaust, fuel storage and piping, shall meet the requirements of NFPA 37
and Chapters 7, 8, and 13 
of t
his code
. Stationary engine generator assemblies shall meet the requirements of UL 2200.
915.2 Powered equipment and appliances. 
Permanently installed equipment and appliances powered by internal 
combustion engines and turbines shall be installed in 
accordance with the manufacturer’s instructions and NFPA 37.
SECTION 
MC 
916
POOL AND SPA HEATERS
916.1 General. 
Pool and spa heaters shall be installed in accordance with the manufacturer’s instructions. Oil
-
fired 
pool and spa heaters shall be tested in ac
cordance with UL 726. Electric pool and spa heaters shall be tested in accord-
ance with UL 1261.
SECTION 
MC 
917
COOKING APPLIANCES
917.1 Cooking appliances. 
Cooking appliances that are designed for permanent installation, including ranges, ovens, 
stoves, br
oilers, grills, fryers and griddles shall be listed, labeled and installed in accordance with the manufacturer’s 
instructions.
Oil
-
fired cooking appliances are prohibited.
Commercial electric cooking appliances shall be listed and 
labeled in accordance wit
h UL 197. Household electric ranges shall be listed and labeled in accordance with UL 858. 
Microwave cooking appliances shall be listed and labeled in accordance with UL 923. Oil
-
burning stoves shall be 
listed and labeled in accordance with UL 896. Solid
-
f
uel
-
fired ovens shall be listed and labeled in accordance with 
UL 2162.
917.2 Prohibited location.
Cooking appliances designed, tested, listed and labeled for use in commercial occupan-
cies shall not be installed within dwelling units or within any area whe
re domestic cooking operations occur.
917.3 Domestic appliances. 
Cooking appliances installed within dwelling units and within areas where domestic 
cooking operations occur shall be listed and labeled as 
household
-
type
appliances for domestic use.
917.4 Do
mestic range installation.
Domestic ranges installed on combustible floors shall be set on their own bases 
or legs and shall be installed with clearances of not less than that shown on the label.
917.5 Open
-
top broiler unit hoods.
A ventilating hood 
shall be provided above a domestic open
-
top broiler unit, 
unless otherwise listed for forced down draft ventilation.
917.5.1 Clearances.
A minimum clearance of 24 inches (
609.6
mm) shall be maintained between the cooking top 
and combustible material above 
the hood. The hood shall be at least as wide as the open
-
top broiler unit and be 
centered over the unit.
917.6 Commercial cooking appliance venting.
Commercial cooking appliances, other than those exempted by Sec-
tion 501.8 of the 
New York City Fuel Gas Cod
e
, shall be vented by connecting the appliance to a vent or chimney in 
accordance with this code and the appliance manufacturer’s instructions or the appliance shall be vented in accord-
ance with Section 505.1.1 of the 
New York City Fuel Gas Code
.
917.7 Dom
estic ventilation.
When a hood is required for proper ventilation of a domestic cooking appliance, the 
exhaust and make
-
up air systems shall be properly engineered and designed in accordance with Chapter 5.
SECTION 
MC 
918
FORCED
-
AIR WARM
-
AIR FURNACES
918.1
Forced
-
air furnaces.   
Oil
-
fired furnaces shall be tested in accordance with UL 727. Electric furnaces shall be 
tested in accordance with UL 1995. Solid fuel furnaces shall be tested in accordance with UL 391. Forced
-
air furnaces 
shall be installed in acco
rdance with the listings and the manufacturer’s 
instructions. Forced
-
air warm
-
air furnaces 
shall be installed in accordance with the requirements of NFPA 31 and the 
New York City Fuel Gas Code
. Unvented 
fuel
-
fired furnaces are prohibited
.
SPECIFIC APPLIANCES AND EQUIPMENT
918.2 Heat pumps.
Electric heat pumps shall be tested in accordance with UL 1995 or UL 60335
-
2
-
40.
918.3 Dampers. 
Volume dampers shall not be placed in the air inlet to a furnace in a manner that will reduce the 
required air to the furnace.
918.4 Circulating air ducts for 
forced
-
air warm
-
air furnaces.   
Circulating air for fuel
-
burning, forced
-
air
-
type, 
warm
-
air furnaces shall be conducted into the blower housing from outside the furnace enclosure by continuous air
-
tight ducts.
918.5 Outdoor and return air openings.
Outdoor 
intake openings shall be located in accordance with Section 401.4. 
Return air openings shall be located in accordance with Section 618.4 of the 
New York City Fuel Gas Code
.
918.6 Outdoor opening protection.  
Outdoor air intake openings shall be 
protected in accordance with Section 
401.5.
SECTION 
MC 
919
CONVERSION BURNERS
919.1 Conversion burners. 
The installation of conversion burners shall conform to ANSI Z21.8 and the applicable 
requirements of Chapter 10 of this code.
SECTION 
MC 
920
UNIT HEATE
RS
920.1 General. 
Unit heaters shall be installed in accordance with the listing and the manufacturer’s instructions. Oil
-
fired unit heaters shall be tested in accordance with UL 731.
920.2 Support. 
Suspended
-
type unit heaters shall be supported by element
s that are designed and constructed to ac-
commodate the weight and dynamic loads. Hangers and brackets shall be of noncombustible material. 
Suspended
-
type
oil
-
fired unit heaters shall be installed in accordance with NFPA 31.
920.3 Ductwork. 
A unit heater sh
all not be attached to a warm
-
air duct system unless listed for such installation.
SECTION 
MC 
921
VENTED ROOM HEATERS
921.1 General. 
Vented room heaters shall be listed and labeled and shall be installed in accordance with the conditions 
of the listing and
the manufacturer’s instructions.
SECTION 
MC 
922
KEROSENE AND OIL
-
FIRED STOVES
922.1 General.
The installation of kerosene and oil
-
fired stoves is prohibited.
SECTION 
MC 
923
CERAMIC KILNS
923.1 General.
Kilns shall be listed and labeled unless 
otherwise approved in accordance with Section 105.1. Electric 
kilns shall comply with UL 499. The approval of unlisted appliances in accordance with Section 105.1 shall be based 
on approved engineering evaluation.
923.1.1 Installation.   
Kilns shall be inst
alled in accordance with the manufacturer’s instructions and the provi-
sions of this code.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
924
STATIONARY FUEL CELL POWER 
PLANTS
924.1 General. 
Stationary fuel cell power 
plants
having a power output not exceeding 
10 MW,
shall be tested in 
accordance with ANSI/CSA America FC1 and shall be installed in accordance with the manufacturer’s instructions
and
NFPA 853. 
Such fuel cell plants shall be powered by hydrogen derived on
-
site from piped natural gas, except 
where the sto
rage, handling and use of hydrogen or other flammable gas is authorized by the 
New York City
Fire 
Code
for such purposes and approved by the fire commissioner.
SECTION MC
925
MASONRY HEATERS
925.1 General. 
Masonry heaters shall be constructed in accordance
with the 
New York City
Building Code.
SECTION MC 926
GASEOUS HYDROGEN SYSTEMS
926.1 Installation. 
The installation of gaseous hydrogen systems shall be in accordance with the applicable require-
ments of this code, the 
New York City Fire Code
, the 
New York 
City Fuel Gas Code
and the 
New York City Building 
Code
.
SECTION MC 927
ELECTRIC 
RADIANT HEATING SYSTEMS
927.1 General. 
Electric radiant heating systems shall be installed in accordance with the manufacturer’s instructions 
and shall be listed for the applic
ation.
927.2 Clearances. 
Clearances for radiant heating panels or elements to any wiring, outlet boxes and junction boxes 
used for installing electrical devices or mounting luminaires shall be in accordance with the 
New York City Building 
Code
and the 
New 
York City Electrical Code.
927.3 Installation on wood or steel framing. 
Radiant panels installed on wood or steel framing shall conform to the 
following requirements:
1.
Heating panels shall be installed parallel to framing members and secured to the surfa
ce of framing members or 
shall be mounted between framing members.
2.
Mechanical fasteners shall penetrate only the unheated portions provided for this purpose. Panels shall not be 
fastened at any point closer than 
1
/
4
inch (6.4 mm) to an element. Other methods of attachment of the panels 
shall be in accordance with the panel installation instructions.
3.
Unless listed and labeled for field cutting, heating panels shall be installed as complete units.
927.4 Installation
in concrete or masonry. 
Radiant heating systems installed in concrete or masonry shall conform 
to the following requirements:
1.
Radiant heating systems shall be identified as being suitable for the installation, and shall be secured in place as 
specified
in the manufacturer’s instructions.
2.
Radiant heating panels and radiant heating panel sets shall not be installed where they bridge expansion joints 
unless they are protected from expansion and contraction.
927.5 Finish surfaces. 
Finish materials instal
led over radiant heating panels and systems shall be installed in accord-
ance with the manufacturer’s instructions. Surfaces shall be secured so that fasteners do not pierce the radiant heating 
elements.
SECTION MC 928
EVAPORATIVE COOLERS
‡‡‡ Chapter 9 was amended by 
Local Law 
77 
of 2023
. This law has an effective
 date of June 10, 2023.
CHAPTER 9
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION MC 901
GENERAL
901.1 Scope. 
This chapter shall govern the approval, design, installation, construction, maintenance, alteration and 
repair of the appliances and equipment specific
ally identified herein and factory
-
built fireplaces. The approval, design, 
installation, construction, maintenance, alteration and repair of 
gas
-
fired
appliances shall be regulated by the 
New 
York City
Fuel Gas Code
. 
901.2 General. 
The 
requirements of this chapter shall apply to the mechanical equipment and appliances regulated by 
this chapter, in addition to the other requirements of this code, and installed in accordance with the requirements of 
NFPA 31, NFPA 54 and NFPA 211
. 
901.3 Sol
id fuel
-
burning fireplaces and appliances.
All solid fuel
-
burning fireplaces and appliances shall be in-
stalled, altered and maintained in buildings in conformity with the applicable provisions of the 
New York City Air 
Pollution Control
Code
and no new solid fuel
-
burning fireplaces or appliances shall be permitted except those that 
burn the types of fuel allowed by such code.
901.4 Hazardous locations. 
Fireplaces and solid fuel
-
burning appliances shall not be installed in hazardous locations.
901.5 Inspectio
n of solid fuel
-
burning heating appliances, chimneys and flues.
Inspections of solid fuel
-
burning 
heating appliances, chimneys and flues shall be in accordance with the 
New York City Building Code
.
901.6 Fireplaces.
Fireplaces (solid
-
fuel
-
type or ANSI Z21.50) shall be installed with tight
-
fitting noncombustible 
fireplace doors to control infiltration losses in construction types listed here:
1.
Masonry or factory
-
built fireplaces designed to allow an open burn.
2.
Decorative appliances (ANSI Z21.60 gas
-
log 
style unit) installed in a vented solid fuel fireplace.
3.
Vented decorative gas fireplace appliances (ANSI Z21.50 unit).
Fireplaces shall be provided with a source of combustion air as required by the fireplace construction provisions of 
the 
New York City
Building Code
and Chapter 7 of this code.
SECTION 
MC 902
MASONRY FIREPLACES
902.1 General. 
Masonry fireplaces shall be constructed in accordance with the 
New York City Building Code
. 
902.2 Fireplace accessories. 
Listed and labeled fireplace accessories shall be installed in accordance with the condi-
tions of the listing and the manufacturer’s instructions. Fireplace accessories shall comply with UL 907.
SECTION MC 903
FACTORY
-
BUILT FIREPLACES
903.1 General. 
Factory
-
built fireplaces shall be li
sted and labeled and shall be installed in accordance with the con-
ditions of the listing. Factory
-
built fireplaces shall be tested in accordance with UL 127.
SPECIFIC APPLIANCES AND EQUIPMENT
903.2 Hearth extensions. 
Hearth extensions of approved factory
-
built fireplaces shall be installed
in accordance with 
the listing of the fireplace. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed 
and labeled hearth extensions shall comply with UL 1618.
903.3 Unvented gas log heaters.
The installation of 
unv
ented gas
-
fired space heaters, gas stoves, gas logs, gas fire-
places and gas 
fireplace 
inserts is prohibited
.
903.4 Gasketed fireplace doors. 
A gasketed fireplace door shall not be installed on a factory
-
built fireplace except 
where the fireplace system has
been specifically tested, listed and labeled for such use in accordance with UL 127.
903.5 Flues.
Separate flues shall be provided for every
fireplace
and 
fireplace 
stove.
903.6 Combustion air supply.
All installations of
factory
-
built 
fireplaces shall co
mply
with 
the requirements of the 
New York City Energy Conservation Code
concerning combustion air supply
.
SECTION 
MC 
904
PELLET FUEL
-
BURNING APPLIANCES
904.1 General. 
Pellet fuel
-
burning appliances shall be listed and labeled in accordance with ASTM E 
1509 and shall 
be installed in accordance with the terms of the listing.
If permitted, such appliances shall be operated in accordance 
with the 
New York City Air Pollution Control Code.
SECTION 
MC 
905
FIREPLACE STOVES AND ROOM HEATERS
905.1 General. 
Fireplace stoves and solid
-
fuel
-
type room heaters shall be listed and labeled and shall be installed in 
accordance with the conditions of the listing. Fireplace stoves shall be tested in accordance with UL 737. Solid
-
fuel
-
type room heaters s
hall be tested in accordance with UL 1482. Fireplace inserts intended for installation in fireplaces 
shall be listed and labeled in accordance with the requirements of UL 1482 and shall be installed in accordance with 
the manufacturer’s instructions.
905.2
Connection to fireplace. 
The connection of solid fuel appliances to chimney flues serving fireplaces shall 
comply with Sections 801.7 and 801.10.
905.3 Hearth extensions. 
Hearth extensions for fireplace stoves shall be installed in accordance with the lis
ting of 
the fireplace stove. The hearth extension shall be readily distinguishable from the surrounding floor area. Listed and 
labeled hearth extensions shall comply with UL 1618.
905.4 Air pollution.
All 
fireplace stoves 
and room heaters shall comply with
the requirements of the 
New York City 
Air Pollution Control Code
.
905.5 Combustion air supply.
All fireplace stoves and room heaters shall comply with the requirements of the 
New 
York City Energy Conservation Code
concerning combustion air supply.
905.6 F
lues.
Separate flues and independent combustion air source 
shall be 
provided for every fireplace stove and 
room heater. Combustion air shall be provided
in accordance with the 
manufacturer’s recommendations and Chapter 
7
.
SECTION 
MC 
906
FACTORY
-
BUILT BARBECUE APPLIANCES
‡‡‡
906.1 General. 
Factory
-
built barbecue appliances shall be listed and labeled for the use intended and shall be 
installed in accordance with the manufacturer’s instructions, this chapter
, 
the 
New York City
Fuel Gas Code
,
and 
Chapters 3, 5, 7, and 8 of this code
. 
The construction and installation of chimneys serving barbeque appliances shall 
comply with all construction and installation requirements of fireplaces.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
907
INCINERATORS AND CREMATORIES
907.1 General. 
Incinerators and crematories shall be listed and labeled in accordance with UL 791 and 
NFPA 82 and 
shall be installed in accordance with the manufacturer’s
instructions.
907.2 Compliance.
All incinerators and crematories shall be installed, altered and mai
ntained in buildings in con-
formity with the applicable provisions of the 
Administrative Code
and the 
New York City Air Pollution Control Code
.
SECTION 
MC 
908
COOLING TOWERS, EVAPORATIVE CONDENSERS AND FLUID COOLERS
908.1 General. 
A cooling tower used in 
conjunction with an air
-
conditioning appliance shall be installed in accordance 
with the manufacturer’s instructions.
908.2 Access. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with ready access.
908.3 Location. 
Cooling towers
, evaporative condensers and fluid coolers shall be located to prevent the discharge 
vapor plumes from entering occupied spaces. Plume discharges shall be not less than 5 feet (1524 mm) above or 20 
feet (6096 mm) away from any ventilation inlet to a buildi
ng. Location on the property shall be as required for build-
ings in accordance with the 
New York City
Building Code
.
908.3.1 Indoor.
Cooling towers, evaporative condensers and fluid coolers located inside of buildings shall be 
constructed of noncombustible 
materials including fill and drift eliminators.
908.3.2 Outside.
Cooling towers shall be constructed of noncombustible materials.
Exceptions:
1.
Fill and drift eliminators of limited combustible materials may be considered noncombustible if the cool-
ing to
wers are provided with automatic sprinkler protection in compliance with Chapter 9 of the 
New York 
City Building Code
.
2.
Fill and drift eliminators for any individual cooling tower cell may be made of limited combustible mate-
rials provided all the followi
ng conditions are met:
2.1.
The cooling tower is located on a building of construction Types IA or IB of the 
New York City 
Building Code
.
2.2.
The cooling tower cell is located at least 30 feet (9144 mm) away from windows or fresh air intakes 
which are at 
an elevation above the roof on which the cooling tower is located, whether in the same 
building or in an adjoining building.
2.3.
The cooling tower cell is located not less than 15 feet (4572 mm) from the lot line.
2.4.
The cooling tower cell is located no
t less than 10 feet (3048 mm) from any chimney, except that the 
distance shall not be less than 20 feet (6096 mm) from a chimney venting products of combustion 
other than from gas
-
or oil
-
fired appliances, whether on the same or an adjoining building.
908.
4 Support and anchorage.   
Supports for cooling towers, evaporative condensers and fluid coolers shall be de-
signed in accordance with the 
New York City
Building Code. 
Seismic restraints shall be as required by the 
New York 
City
Building Code
. Adequate vibra
tion isolation shall be provided in accordance with the manufacturer’s guidelines 
and as required for the supporting structure, and in accordance with Sections 313.3.7 and 313.3.8.
908.5 Water supply. 
Cooling towers, evaporative condensers and fluid coolers shall be provided with an approved 
water supply, sized for peak demand. The quality of water shall be provided in accordance with the equipment man-
ufacturer’s recommendations. The piping system and p
rotection of the potable water supply system shall be installed 
as required by the 
New York City
Plumbing Code
.
908.6 Drainage. 
Drains, overflows and blowdown provisions shall be indirectly connected to an approved disposal 
location. Discharge of 
chemical waste shall be approved by the appropriate regulatory authority.
908.7 Refrigerants and hazardous fluids. 
Heat exchange equipment that contains a refrigerant and that is part of a 
closed refrigeration system shall comply with Chapter 11. Heat 
exch
ange 
equipment containing heat transfer fluids 
SPECIFIC APPLIANCES AND EQUIPMENT
which are combustible or hazardous shall comply with the 
New York City
Fire Code
. Flammable heat transfer fluids 
are prohibited
.
908.8 Cooling towers. 
Cooling towers, both open circuit and closed circuit type,
and evaporative condensers shall 
comply with Sections 908.8.1 and 908.8.2.
908.8.1 Conductivity or flow
-
based control of cycles of concentration. 
Cooling towers and evaporative conden-
sers shall include controls that automate system bleed based on conducti
vity, fraction of metered makeup volume, 
metered bleed volume, recirculating pump run time or bleed time.
908.8.2 Drift eliminators. 
Cooling towers and evaporative condensers shall be equipped with drift eliminators that 
have a maximum drift rate of 0.005 
percent of the circulated water flow rate as established in the equipment’s 
design specifications.
‡‡‡
908.9
Additional requirements. 
The installation and maintenance of all cooling towers, evaporative condensers, 
and fluid coolers shall comply with the req
uirements of Article 317 of Chapter 3 of Title 
28 
of the 
Administrative 
Code
.
SECTION 
MC 
909
VENTED WALL FURNACES
909.1 General. 
Vented wall furnaces shall be installed in accordance with their listing and the manufacturer’s instruc-
tions. 
Oil
-
fired furnaces shall be tested in accordance with UL 730.
909.2 Location. 
Vented wall furnaces shall be located so as not to cause a fire hazard to walls, floors, combustible 
furnishings or doors. Vented wall furnaces installed between bathrooms and ad
joining rooms shall not circulate air 
from bathrooms to other parts of the building.
909.3 Door swing. 
Vented wall furnaces shall be located so that a door cannot swing within 12 inches (304.8 mm) of 
an air inlet or air outlet of such furnace measured at r
ight angles to the opening. Doorstops or door closers shall not 
be installed to obtain this clearance.
909.4 Ducts prohibited. 
Ducts shall not be attached to wall furnaces. Casing extension boots shall not be installed 
unless listed as part of the applianc
e.
909.5 Manual shutoff valve. 
A manual shutoff valve shall be installed ahead of all controls.
909.6 Access. 
Vented wall furnaces shall be provided with access for cleaning of heating surfaces, removal of burners, 
replacement of sections, motors, controls
, filters and other working parts, and for adjustments and lubrication of parts 
requiring such attention. Panels, grilles and access doors that must be removed for normal servicing operations shall 
not be attached to the building construction.
SECTION 
MC 
9
10
FLOOR FURNACES
910.1 General. 
Floor furnaces shall be installed in accordance with their listing and the manufacturer’s instructions. 
Oil
-
fired furnaces shall be tested in accordance with UL 729.
Unvented floor furnaces are prohibited.
910.2 Placement. 
Floor furnaces shall not be installed in 
any corridor, in 
the floor of any aisle or passageway of any 
auditorium, public hall, place of assembly, or in any egress element from any such room or space.
With the exception of wall register models, a floor furn
ace shall not be placed closer than 6 inches (152.4 mm) to 
the nearest wall, and wall register models shall not be placed closer than 6 inches (152.4 mm) to a corner.
The furnace shall be placed such that a drapery or similar combustible object will not be
nearer than 12 inches 
(304.8 mm) to any portion of the register of the furnace. Floor furnaces shall not be installed in concrete floor con-
struction built on grade. The controlling thermostat for a floor furnace shall be located within the same room or sp
ace 
as the floor furnace or shall be located in an adjacent room or space that is permanently open to the room or space 
containing the floor furnace.
Floor furnaces shall be located so as to be accessible. Floor furnaces shall be installed 
SPECIFIC APPLIANCES AND EQUIPMENT
only in floors o
f noncombustible construction having at least a 2
-
hour fire rating, except as where required for one
-
and two
-
family dwellings.
910.3 Bracing. 
The floor around the furnace shall be braced and headed with a support framework design in accord-
ance with the 
Ne
w York City
Building Code
.
910.4 Clearance. 
The lowest portion of the floor furnace shall have not less than a 6
-
inch (152.4 mm) clearance from 
the grade level; except where the lower 6
-
inch (152.4 mm) portion of the floor furnace is sealed by the 
manufacturer 
to prevent entrance of water, the minimum clearance shall be reduced to not less than 2 inches (50.8 mm). Where 
these clearances are not present, the ground below and to the sides shall be excavated to form a pit under the furnace 
so that the 
required clearance is provided beneath the lowest portion of the furnace. A 12
-
inch (304.8 mm) minimum 
clearance shall be provided on all sides except the control side, which shall have an 18
-
inch (457.2 mm) minimum 
clearance.
910.5 Enclosures.
Enclosures 
of floor furnaces shall be constructed entirely of noncombustible materials with a fire
-
resistance rating of at least 1 hour and shall be provided with adequate outdoor air to ensure proper combustion. The 
enclosure shall be provided with adequate means of
access for servicing the furnace.
910.6 Duct temperature.
The outlet duct temperature of warm air heating furnaces shall not be greater than 250°F 
(121.1°C).
910.7 One
-
and two
-
family dwellings.
Floor furnace enclosures shall be constructed of noncombust
ible materials 
with a fire
-
resistance rating of at least 1 hour. Means shall be provided for supporting the furnace when the grille is 
removed. Clearances shall be provided as per NFPA 54.
SECTION 
MC 
911
DUCT FURNACES AND HEATERS
911.1 General. 
Duct furnac
es and heaters shall be installed in accordance with the manufacturer’s instructions. Elec-
tric 
furnaces and duct heaters
shall
comply with UL 
1995 or UL 1996, as applicable. Unvented fuel
-
fired duct fur-
naces are prohibited
.
911.2 Access panels.
Ducts conne
cted to duct furnaces shall have removable access panels on both the upstream and 
downstream sides of the furnace.
911.3 Location of draft hood and controls.
The controls, combustion air inlets and draft hoods for duct furnaces 
shall be located outside of 
the ducts. The draft hood shall be located in the same enclosure from which combustion 
air is taken.
911.4 Circulating air.
Where a duct furnace is installed so that supply ducts convey air to areas outside the space 
containing the furnace, the 
return air shall also be conveyed by a duct(s) sealed to the furnace casing and terminating 
outside the space containing the furnace. The duct furnace shall be installed on the positive pressure side of the 
circulating air blower.
911.5 Duct temperature.
T
he outlet duct temperature of duct furnaces shall not be greater than 250°F (121.1°C).
SECTION 
MC 
912
INFRARED RADIANT HEATERS
912.1 General. 
Electric infrared radiant heaters shall comply with UL 499.
912.2 Support. 
Infrared radiant heaters shall be fixed
in a position independent of fuel and electric supply lines. 
Hangers and brackets shall be noncombustible material.
912.3 Clearances. 
Heaters shall be installed with clearances from combustible material in accordance with the man-
ufacturer’s instructions.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
913
CLOTHES DRYERS
913.1 General. 
Clothes dryers shall be installed in accordance with the manufacturer’s instructions and shall comply 
with the following as applicable: 
1.
Electric commercial clothes dryers shall be tested in accordance with U
L 1240. 
2.
Electric residential clothes dryers shall be tested in accordance with UL 2158. 
3.
Electric coin
-
, ticket
-
, or card
-
operated clothes dryers shall be tested in accordance with UL 2158.
913.2 Exhaust required. 
Clothes dryers shall be exhausted i
n accordance with Section 504.
Exception:
Electric clothes dryers provided with a condensate drain. Spaces containing such dryers shall be pro-
vided with transfer air openings or other approved means to provide adequate air exchanges with adjacent spaces.
9
13.3 Clearances. 
Clothes dryers shall be installed with clearance to combustibles in accordance with the manufac-
turer’s instructions.
SECTION 
MC 
914
SAUNA HEATERS
914.1 Location and protection. 
Sauna heaters shall be located so as to minimize the possibili
ty of accidental contact 
by a person in the room.
914.1.1 Guards. 
Sauna heaters shall be protected from accidental contact by an approved guard or barrier of ma-
terial having a low coefficient of thermal conductivity. The guard shall not substantially affec
t the transfer of heat 
from the heater to the room.
914.2 Installation. 
Sauna heaters shall be listed and labeled in accordance with UL 875 and shall be installed in 
accordance with their listing and the manufacturer’s instructions.
914.3 Access. 
Panels, g
rilles and access doors that are required to be removed for normal servicing operations shall 
not be attached to the building.
914.4 Heat and time controls. 
Sauna heaters shall be equipped with a thermostat that will limit room temperature to 
194°F (90°C).
If the thermostat is not an integral part of the sauna heater, the heat
-
sensing element shall be located 
within 6 inches (152.4 mm) of the ceiling. If the heat
-
sensing element is a capillary tube and bulb, the assembly shall 
be attached to the wall or oth
er support, and shall be protected against physical damage.
914.4.1 Timers. 
A timer, if provided to control main burner operation, shall have a maximum operating time of 1 
hour. The control for the timer shall be located outside the sauna room.
914.5 
Sauna room. 
A ventilation opening into the sauna room shall be provided. The opening shall be not less than 
4 inches by 8 inches (101.6 mm by 203.2 mm) located near the top of the door into the sauna room.
914.5.1 Warning notice. 
The following permanent no
tice, constructed of approved material, shall be mechanically 
attached to the sauna room on the outside:
WARNING: DO NOT EXCEED 30 MINUTES IN SAUNA. EXCESSIVE EXPOSURE CAN BE HARMFUL 
TO HEALTH. ANY PERSON WITH POOR HEALTH SHOULD CONSULT A PHYSICIAN BEFORE 
US-
ING SAUNA.
The words shall contrast with the background and the wording shall be in letters not less than
1
/
4
-
inch (6.4 mm) 
high.
Exception: 
This section shall not apply to one
-
and two
-
family dwellings.
SECTION 
MC 
915
ENGINE AND GAS TURBINE
-
POWERED EQUI
PMENT AND APPLIANCES
SPECIFIC APPLIANCES AND EQUIPMENT
915.1 General. 
The installation of liquid
-
fueled stationary internal combustion engines and gas turbines, including 
combustion air, 
exhaust, fuel storage and piping, shall meet the requirements of NFPA 37
and Chapters 7, 8, and 13 
of t
his code
. Stationary engine generator assemblies shall meet the requirements of UL 2200.
915.2 Powered equipment and appliances. 
Permanently installed equipment and appliances powered by internal 
combustion engines and turbines shall be installed in 
accordance with the manufacturer’s instructions and NFPA 37.
SECTION 
MC 
916
POOL AND SPA HEATERS
916.1 General. 
Pool and spa heaters shall be installed in accordance with the manufacturer’s instructions. Oil
-
fired 
pool and spa heaters shall be tested in ac
cordance with UL 726. Electric pool and spa heaters shall be tested in accord-
ance with UL 1261.
SECTION 
MC 
917
COOKING APPLIANCES
917.1 Cooking appliances. 
Cooking appliances that are designed for permanent installation, including ranges, ovens, 
stoves, br
oilers, grills, fryers and griddles shall be listed, labeled and installed in accordance with the manufacturer’s 
instructions.
Oil
-
fired cooking appliances are prohibited.
Commercial electric cooking appliances shall be listed and 
labeled in accordance wit
h UL 197. Household electric ranges shall be listed and labeled in accordance with UL 858. 
Microwave cooking appliances shall be listed and labeled in accordance with UL 923. Oil
-
burning stoves shall be 
listed and labeled in accordance with UL 896. Solid
-
f
uel
-
fired ovens shall be listed and labeled in accordance with 
UL 2162.
917.2 Prohibited location.
Cooking appliances designed, tested, listed and labeled for use in commercial occupan-
cies shall not be installed within dwelling units or within any area whe
re domestic cooking operations occur.
917.3 Domestic appliances. 
Cooking appliances installed within dwelling units and within areas where domestic 
cooking operations occur shall be listed and labeled as 
household
-
type
appliances for domestic use.
917.4 Do
mestic range installation.
Domestic ranges installed on combustible floors shall be set on their own bases 
or legs and shall be installed with clearances of not less than that shown on the label.
917.5 Open
-
top broiler unit hoods.
A ventilating hood 
shall be provided above a domestic open
-
top broiler unit, 
unless otherwise listed for forced down draft ventilation.
917.5.1 Clearances.
A minimum clearance of 24 inches (
609.6
mm) shall be maintained between the cooking top 
and combustible material above 
the hood. The hood shall be at least as wide as the open
-
top broiler unit and be 
centered over the unit.
917.6 Commercial cooking appliance venting.
Commercial cooking appliances, other than those exempted by Sec-
tion 501.8 of the 
New York City Fuel Gas Cod
e
, shall be vented by connecting the appliance to a vent or chimney in 
accordance with this code and the appliance manufacturer’s instructions or the appliance shall be vented in accord-
ance with Section 505.1.1 of the 
New York City Fuel Gas Code
.
917.7 Dom
estic ventilation.
When a hood is required for proper ventilation of a domestic cooking appliance, the 
exhaust and make
-
up air systems shall be properly engineered and designed in accordance with Chapter 5.
SECTION 
MC 
918
FORCED
-
AIR WARM
-
AIR FURNACES
918.1
Forced
-
air furnaces.   
Oil
-
fired furnaces shall be tested in accordance with UL 727. Electric furnaces shall be 
tested in accordance with UL 1995. Solid fuel furnaces shall be tested in accordance with UL 391. Forced
-
air furnaces 
shall be installed in acco
rdance with the listings and the manufacturer’s 
instructions. Forced
-
air warm
-
air furnaces 
shall be installed in accordance with the requirements of NFPA 31 and the 
New York City Fuel Gas Code
. Unvented 
fuel
-
fired furnaces are prohibited
.
SPECIFIC APPLIANCES AND EQUIPMENT
918.2 Heat pumps.
Electric heat pumps shall be tested in accordance with UL 1995 or UL 60335
-
2
-
40.
918.3 Dampers. 
Volume dampers shall not be placed in the air inlet to a furnace in a manner that will reduce the 
required air to the furnace.
918.4 Circulating air ducts for 
forced
-
air warm
-
air furnaces.   
Circulating air for fuel
-
burning, forced
-
air
-
type, 
warm
-
air furnaces shall be conducted into the blower housing from outside the furnace enclosure by continuous air
-
tight ducts.
918.5 Outdoor and return air openings.
Outdoor 
intake openings shall be located in accordance with Section 401.4. 
Return air openings shall be located in accordance with Section 618.4 of the 
New York City Fuel Gas Code
.
918.6 Outdoor opening protection.  
Outdoor air intake openings shall be 
protected in accordance with Section 
401.5.
SECTION 
MC 
919
CONVERSION BURNERS
919.1 Conversion burners. 
The installation of conversion burners shall conform to ANSI Z21.8 and the applicable 
requirements of Chapter 10 of this code.
SECTION 
MC 
920
UNIT HEATE
RS
920.1 General. 
Unit heaters shall be installed in accordance with the listing and the manufacturer’s instructions. Oil
-
fired unit heaters shall be tested in accordance with UL 731.
920.2 Support. 
Suspended
-
type unit heaters shall be supported by element
s that are designed and constructed to ac-
commodate the weight and dynamic loads. Hangers and brackets shall be of noncombustible material. 
Suspended
-
type
oil
-
fired unit heaters shall be installed in accordance with NFPA 31.
920.3 Ductwork. 
A unit heater sh
all not be attached to a warm
-
air duct system unless listed for such installation.
SECTION 
MC 
921
VENTED ROOM HEATERS
921.1 General. 
Vented room heaters shall be listed and labeled and shall be installed in accordance with the conditions 
of the listing and
the manufacturer’s instructions.
SECTION 
MC 
922
KEROSENE AND OIL
-
FIRED STOVES
922.1 General.
The installation of kerosene and oil
-
fired stoves is prohibited.
SECTION 
MC 
923
CERAMIC KILNS
923.1 General.
Kilns shall be listed and labeled unless 
otherwise approved in accordance with Section 105.1. Electric 
kilns shall comply with UL 499. The approval of unlisted appliances in accordance with Section 105.1 shall be based 
on approved engineering evaluation.
923.1.1 Installation.   
Kilns shall be inst
alled in accordance with the manufacturer’s instructions and the provi-
sions of this code.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
924
STATIONARY FUEL CELL POWER 
PLANTS
924.1 General. 
Stationary fuel cell power 
plants
having a power output not exceeding 
10 MW,
shall be tested in 
accordance with ANSI/CSA America FC1 and shall be installed in accordance with the manufacturer’s instructions
and
NFPA 853. 
Such fuel cell plants shall be powered by hydrogen derived on
-
site from piped natural gas, except 
where the sto
rage, handling and use of hydrogen or other flammable gas is authorized by the 
New York City
Fire 
Code
for such purposes and approved by the fire commissioner.
SECTION MC
925
MASONRY HEATERS
925.1 General. 
Masonry heaters shall be constructed in accordance
with the 
New York City
Building Code.
SECTION MC 926
GASEOUS HYDROGEN SYSTEMS
926.1 Installation. 
The installation of gaseous hydrogen systems shall be in accordance with the applicable require-
ments of this code, the 
New York City Fire Code
, the 
New York 
City Fuel Gas Code
and the 
New York City Building 
Code
.
SECTION MC 927
ELECTRIC 
RADIANT HEATING SYSTEMS
927.1 General. 
Electric radiant heating systems shall be installed in accordance with the manufacturer’s instructions 
and shall be listed for the applic
ation.
927.2 Clearances. 
Clearances for radiant heating panels or elements to any wiring, outlet boxes and junction boxes 
used for installing electrical devices or mounting luminaires shall be in accordance with the 
New York City Building 
Code
and the 
New 
York City Electrical Code.
927.3 Installation on wood or steel framing. 
Radiant panels installed on wood or steel framing shall conform to the 
following requirements:
1.
Heating panels shall be installed parallel to framing members and secured to the surfa
ce of framing members or 
shall be mounted between framing members.
2.
Mechanical fasteners shall penetrate only the unheated portions provided for this purpose. Panels shall not be 
fastened at any point closer than 
1
/
4
inch (6.4 mm) to an element. Other methods of attachment of the panels 
shall be in accordance with the panel installation instructions.
3.
Unless listed and labeled for field cutting, heating panels shall be installed as complete units.
927.4 Installation
in concrete or masonry. 
Radiant heating systems installed in concrete or masonry shall conform 
to the following requirements:
1.
Radiant heating systems shall be identified as being suitable for the installation, and shall be secured in place as 
specified
in the manufacturer’s instructions.
2.
Radiant heating panels and radiant heating panel sets shall not be installed where they bridge expansion joints 
unless they are protected from expansion and contraction.
927.5 Finish surfaces. 
Finish materials instal
led over radiant heating panels and systems shall be installed in accord-
ance with the manufacturer’s instructions. Surfaces shall be secured so that fasteners do not pierce the radiant heating 
elements.
SECTION MC 928
EVAPORATIVE COOLERS
SPECIFIC APPLIANCES AND EQUIPMENT
928.1 General. 
Eva
porative cooling equipment shall:
1.
Be installed in accordance with the manufacturer’s instructions.
2.
Be installed on level platforms and in accordance with Section 304.10.
3.
Have openings in exterior walls or roofs flashed in accordance with the 
New Y
ork City Building Code.
4.
Be provided with an approved water supply, sized for peak demand. The quality of water shall be provided in 
accordance with the equipment manufacturer’s recommendations. The piping system and protection of the po-
table water suppl
y system shall be installed as required by the 
New York City Plumbing Code.
5.
Have ventilation air intake opening locations in accordance with Section 401.4. 
Return air openings shall be located in accordance with Section 618.4 of the 
New York City Fuel Gas Code
.
918.6 Outdoor opening protection.  
Outdoor air intake openings shall be 
protected in accordance with Section 
401.5.
SECTION 
MC 
919
CONVERSION BURNERS
919.1 Conversion burners. 
The installation of conversion burners shall conform to ANSI Z21.8 and the applicable 
requirements of Chapter 10 of this code.
SECTION 
MC 
920
UNIT HEATE
RS
920.1 General. 
Unit heaters shall be installed in accordance with the listing and the manufacturer’s instructions. Oil
-
fired unit heaters shall be tested in accordance with UL 731.
920.2 Support. 
Suspended
-
type unit heaters shall be supported by element
s that are designed and constructed to ac-
commodate the weight and dynamic loads. Hangers and brackets shall be of noncombustible material. 
Suspended
-
type
oil
-
fired unit heaters shall be installed in accordance with NFPA 31.
920.3 Ductwork. 
A unit heater sh
all not be attached to a warm
-
air duct system unless listed for such installation.
SECTION 
MC 
921
VENTED ROOM HEATERS
921.1 General. 
Vented room heaters shall be listed and labeled and shall be installed in accordance with the conditions 
of the listing and
the manufacturer’s instructions.
SECTION 
MC 
922
KEROSENE AND OIL
-
FIRED STOVES
922.1 General.
The installation of kerosene and oil
-
fired stoves is prohibited.
SECTION 
MC 
923
CERAMIC KILNS
923.1 General.
Kilns shall be listed and labeled unless 
otherwise approved in accordance with Section 105.1. Electric 
kilns shall comply with UL 499. The approval of unlisted appliances in accordance with Section 105.1 shall be based 
on approved engineering evaluation.
923.1.1 Installation.   
Kilns shall be inst
alled in accordance with the manufacturer’s instructions and the provi-
sions of this code.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
924
STATIONARY FUEL CELL POWER 
PLANTS
924.1 General. 
Stationary fuel cell power 
plants
having a power output not exceeding 
10 MW,
shall be tested in 
accordance with ANSI/CSA America FC1 and shall be installed in accordance with the manufacturer’s instructions
and
NFPA 853. 
Such fuel cell plants shall be powered by hydrogen derived on
-
site from piped natural gas, except 
where the sto
rage, handling and use of hydrogen or other flammable gas is authorized by the 
New York City
Fire 
Code
for such purposes and approved by the fire commissioner.
SECTION MC
925
MASONRY HEATERS
925.1 General. 
Masonry heaters shall be constructed in accordance
with the 
New York City
Building Code.
SECTION MC 926
GASEOUS HYDROGEN SYSTEMS
926.1 Installation. 
The installation of gaseous hydrogen systems shall be in accordance with the applicable require-
ments of this code, the 
New York City Fire Code
, the 
New York 
City Fuel Gas Code
and the 
New York City Building 
Code
.
SECTION MC 927
ELECTRIC 
RADIANT HEATING SYSTEMS
927.1 General. 
Electric radiant heating systems shall be installed in accordance with the manufacturer’s instructions 
and shall be listed for the applic
ation.
927.2 Clearances. 
Clearances for radiant heating panels or elements to any wiring, outlet boxes and junction boxes 
used for installing electrical devices or mounting luminaires shall be in accordance with the 
New York City Building 
Code
and the 
New 
York City Electrical Code.
927.3 Installation on wood or steel framing. 
Radiant panels installed on wood or steel framing shall conform to the 
following requirements:
1.
Heating panels shall be installed parallel to framing members and secured to the surfa
ce of framing members or 
shall be mounted between framing members.
2.
Mechanical fasteners shall penetrate only the unheated portions provided for this purpose. Panels shall not be 
fastened at any point closer than 
1
/
4
inch (6.4 mm) to an element. Other methods of attachment of the panels 
shall be in accordance with the panel installation instructions.
3.
Unless listed and labeled for field cutting, heating panels shall be installed as complete units.
927.4 Installation
in concrete or masonry. 
Radiant heating systems installed in concrete or masonry shall conform 
to the following requirements:
1.
Radiant heating systems shall be identified as being suitable for the installation, and shall be secured in place as 
specified
in the manufacturer’s instructions.
2.
Radiant heating panels and radiant heating panel sets shall not be installed where they bridge expansion joints 
unless they are protected from expansion and contraction.
927.5 Finish surfaces. 
Finish materials instal
led over radiant heating panels and systems shall be installed in accord-
ance with the manufacturer’s instructions. Surfaces shall be secured so that fasteners do not pierce the radiant heating 
elements.
SECTION MC 928
EVAPORATIVE COOLERS
SPECIFIC APPLIANCES AND EQUIPMENT
928.1 General. 
Eva
porative cooling equipment shall:
1.
Be installed in accordance with the manufacturer’s instructions.
2.
Be installed on level platforms and in accordance with Section 304.10.
3.
Have openings in exterior walls or roofs flashed in accordance with the 
New Y
ork City Building Code.
4.
Be provided with an approved water supply, sized for peak demand. The quality of water shall be provided in 
accordance with the equipment manufacturer’s recommendations. The piping system and protection of the po-
table water suppl
y system shall be installed as required by the 
New York City Plumbing Code.
5.
Have ventilation air intake opening locations in accordance with Section 401.4. 
Return air openings shall be located in accordance with Section 618.4 of the 
New York City Fuel Gas Code
.
918.6 Outdoor opening protection.  
Outdoor air intake openings shall be 
protected in accordance with Section 
401.5.
SECTION 
MC 
919
CONVERSION BURNERS
919.1 Conversion burners. 
The installation of conversion burners shall conform to ANSI Z21.8 and the applicable 
requirements of Chapter 10 of this code.
SECTION 
MC 
920
UNIT HEATE
RS
920.1 General. 
Unit heaters shall be installed in accordance with the listing and the manufacturer’s instructions. Oil
-
fired unit heaters shall be tested in accordance with UL 731.
920.2 Support. 
Suspended
-
type unit heaters shall be supported by element
s that are designed and constructed to ac-
commodate the weight and dynamic loads. Hangers and brackets shall be of noncombustible material. 
Suspended
-
type
oil
-
fired unit heaters shall be installed in accordance with NFPA 31.
920.3 Ductwork. 
A unit heater sh
all not be attached to a warm
-
air duct system unless listed for such installation.
SECTION 
MC 
921
VENTED ROOM HEATERS
921.1 General. 
Vented room heaters shall be listed and labeled and shall be installed in accordance with the conditions 
of the listing and
the manufacturer’s instructions.
SECTION 
MC 
922
KEROSENE AND OIL
-
FIRED STOVES
922.1 General.
The installation of kerosene and oil
-
fired stoves is prohibited.
SECTION 
MC 
923
CERAMIC KILNS
923.1 General.
Kilns shall be listed and labeled unless 
otherwise approved in accordance with Section 105.1. Electric 
kilns shall comply with UL 499. The approval of unlisted appliances in accordance with Section 105.1 shall be based 
on approved engineering evaluation.
923.1.1 Installation.   
Kilns shall be inst
alled in accordance with the manufacturer’s instructions and the provi-
sions of this code.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
924
STATIONARY FUEL CELL POWER 
PLANTS
924.1 General. 
Stationary fuel cell power 
plants
having a power output not exceeding 
10 MW,
shall be tested in 
accordance with ANSI/CSA America FC1 and shall be installed in accordance with the manufacturer’s instructions
and
NFPA 853. 
Such fuel cell plants shall be powered by hydrogen derived on
-
site from piped natural gas, except 
where the sto
rage, handling and use of hydrogen or other flammable gas is authorized by the 
New York City
Fire 
Code
for such purposes and approved by the fire commissioner.
SECTION MC
925
MASONRY HEATERS
925.1 General. 
Masonry heaters shall be constructed in accordance
with the 
New York City
Building Code.
SECTION MC 926
GASEOUS HYDROGEN SYSTEMS
926.1 Installation. 
The installation of gaseous hydrogen systems shall be in accordance with the applicable require-
ments of this code, the 
New York City Fire Code
, the 
New York 
City Fuel Gas Code
and the 
New York City Building 
Code
.
SECTION MC 927
ELECTRIC 
RADIANT HEATING SYSTEMS
927.1 General. 
Electric radiant heating systems shall be installed in accordance with the manufacturer’s instructions 
and shall be listed for the applic
ation.
927.2 Clearances. 
Clearances for radiant heating panels or elements to any wiring, outlet boxes and junction boxes 
used for installing electrical devices or mounting luminaires shall be in accordance with the 
New York City Building 
Code
and the 
New 
York City Electrical Code.
927.3 Installation on wood or steel framing. 
Radiant panels installed on wood or steel framing shall conform to the 
following requirements:
1.
Heating panels shall be installed parallel to framing members and secured to the surfa
ce of framing members or 
shall be mounted between framing members.
2.
Mechanical fasteners shall penetrate only the unheated portions provided for this purpose. Panels shall not be 
fastened at any point closer than 
1
/
4
inch (6.4 mm) to an element. Other methods of attachment of the panels 
shall be in accordance with the panel installation instructions.
3.
Unless listed and labeled for field cutting, heating panels shall be installed as complete units.
927.4 Installation
in concrete or masonry. 
Radiant heating systems installed in concrete or masonry shall conform 
to the following requirements:
1.
Radiant heating systems shall be identified as being suitable for the installation, and shall be secured in place as 
specified
in the manufacturer’s instructions.
2.
Radiant heating panels and radiant heating panel sets shall not be installed where they bridge expansion joints 
unless they are protected from expansion and contraction.
927.5 Finish surfaces. 
Finish materials instal
led over radiant heating panels and systems shall be installed in accord-
ance with the manufacturer’s instructions. Surfaces shall be secured so that fasteners do not pierce the radiant heating 
elements.
SECTION MC 928
EVAPORATIVE COOLERS
SPECIFIC APPLIANCES AND EQUIPMENT
928.1 General. 
Eva
porative cooling equipment shall:
1.
Be installed in accordance with the manufacturer’s instructions.
2.
Be installed on level platforms and in accordance with Section 304.10.
3.
Have openings in exterior walls or roofs flashed in accordance with the 
New Y
ork City Building Code.
4.
Be provided with an approved water supply, sized for peak demand. The quality of water shall be provided in 
accordance with the equipment manufacturer’s recommendations. The piping system and protection of the po-
table water suppl
y system shall be installed as required by the 
New York City Plumbing Code.
5.
Have ventilation air intake opening locations in accordance with Section 401.4. 
Return air openings shall be located in accordance with Section 618.4 of the 
New York City Fuel Gas Code
.
918.6 Outdoor opening protection.  
Outdoor air intake openings shall be 
protected in accordance with Section 
401.5.
SECTION 
MC 
919
CONVERSION BURNERS
919.1 Conversion burners. 
The installation of conversion burners shall conform to ANSI Z21.8 and the applicable 
requirements of Chapter 10 of this code.
SECTION 
MC 
920
UNIT HEATE
RS
920.1 General. 
Unit heaters shall be installed in accordance with the listing and the manufacturer’s instructions. Oil
-
fired unit heaters shall be tested in accordance with UL 731.
920.2 Support. 
Suspended
-
type unit heaters shall be supported by element
s that are designed and constructed to ac-
commodate the weight and dynamic loads. Hangers and brackets shall be of noncombustible material. 
Suspended
-
type
oil
-
fired unit heaters shall be installed in accordance with NFPA 31.
920.3 Ductwork. 
A unit heater sh
all not be attached to a warm
-
air duct system unless listed for such installation.
SECTION 
MC 
921
VENTED ROOM HEATERS
921.1 General. 
Vented room heaters shall be listed and labeled and shall be installed in accordance with the conditions 
of the listing and
the manufacturer’s instructions.
SECTION 
MC 
922
KEROSENE AND OIL
-
FIRED STOVES
922.1 General.
The installation of kerosene and oil
-
fired stoves is prohibited.
SECTION 
MC 
923
CERAMIC KILNS
923.1 General.
Kilns shall be listed and labeled unless 
otherwise approved in accordance with Section 105.1. Electric 
kilns shall comply with UL 499. The approval of unlisted appliances in accordance with Section 105.1 shall be based 
on approved engineering evaluation.
923.1.1 Installation.   
Kilns shall be inst
alled in accordance with the manufacturer’s instructions and the provi-
sions of this code.
SPECIFIC APPLIANCES AND EQUIPMENT
SECTION 
MC 
924
STATIONARY FUEL CELL POWER 
PLANTS
924.1 General. 
Stationary fuel cell power 
plants
having a power output not exceeding 
10 MW,
shall be tested in 
accordance with ANSI/CSA America FC1 and shall be installed in accordance with the manufacturer’s instructions
and
NFPA 853. 
Such fuel cell plants shall be powered by hydrogen derived on
-
site from piped natural gas, except 
where the sto
rage, handling and use of hydrogen or other flammable gas is authorized by the 
New York City
Fire 
Code
for such purposes and approved by the fire commissioner.
SECTION MC
925
MASONRY HEATERS
925.1 General. 
Masonry heaters shall be constructed in accordance
with the 
New York City
Building Code.
SECTION MC 926
GASEOUS HYDROGEN SYSTEMS
926.1 Installation. 
The installation of gaseous hydrogen systems shall be in accordance with the applicable require-
ments of this code, the 
New York City Fire Code
, the 
New York 
City Fuel Gas Code
and the 
New York City Building 
Code
.
SECTION MC 927
ELECTRIC 
RADIANT HEATING SYSTEMS
927.1 General. 
Electric radiant heating systems shall be installed in accordance with the manufacturer’s instructions 
and shall be listed for the applic
ation.
927.2 Clearances. 
Clearances for radiant heating panels or elements to any wiring, outlet boxes and junction boxes 
used for installing electrical devices or mounting luminaires shall be in accordance with the 
New York City Building 
Code
and the 
New 
York City Electrical Code.
927.3 Installation on wood or steel framing. 
Radiant panels installed on wood or steel framing shall conform to the 
following requirements:
1.
Heating panels shall be installed parallel to framing members and secured to the surfa
ce of framing members or 
shall be mounted between framing members.
2.
Mechanical fasteners shall penetrate only the unheated portions provided for this purpose. Panels shall not be 
fastened at any point closer than 
1
/
4
inch (6.4 mm) to an element. Other methods of attachment of the panels 
shall be in accordance with the panel installation instructions.
3.
Unless listed and labeled for field cutting, heating panels shall be installed as complete units.
927.4 Installation
in concrete or masonry. 
Radiant heating systems installed in concrete or masonry shall conform 
to the following requirements:
1.
Radiant heating systems shall be identified as being suitable for the installation, and shall be secured in place as 
specified
in the manufacturer’s instructions.
2.
Radiant heating panels and radiant heating panel sets shall not be installed where they bridge expansion joints 
unless they are protected from expansion and contraction.
927.5 Finish surfaces. 
Finish materials instal
led over radiant heating panels and systems shall be installed in accord-
ance with the manufacturer’s instructions. Surfaces shall be secured so that fasteners do not pierce the radiant heating 
elements.
SECTION MC 928
EVAPORATIVE COOLERS
SPECIFIC APPLIANCES AND EQUIPMENT
928.1 General. 
Eva
porative cooling equipment shall:
1.
Be installed in accordance with the manufacturer’s instructions.
2.
Be installed on level platforms and in accordance with Section 304.10.
3.
Have openings in exterior walls or roofs flashed in accordance with the 
New Y
ork City Building Code.
4.
Be provided with an approved water supply, sized for peak demand. The quality of water shall be provided in 
accordance with the equipment manufacturer’s recommendations. The piping system and protection of the po-
table water suppl
y system shall be installed as required by the 
New York City Plumbing Code.
5.
Have ventilation air intake opening locations in accordance with Section 401.4.