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§27-740 Heating Requirements
All habitable or occupiable rooms or spaces, and all other rooms or spaces listed in table 12-1, shall be provided with means of heating in accordance with the requirements of this subchapter and reference standard RS 12-1. Heating systems shall be capable of producing the required temperatures listed in table 12-1 when the outdoor temperature is five degrees Fahrenheit and the wind velocity is fifteen mph. In highly exposed locations, provision shall be made for higher wind velocities. Heating equipment shall not be required when either of the following conditions exist:

(a) Where the occupancy is seasonal and the rooms or buildings will not be occupied between November first and May first of the following year.

(b) Where the processes or activities normally conducted within the space will generate sufficient heat to produce the prescribed indoor temperature during the time of occupancy.

TABLE 12-1
MINIMUM SPACE TEMPERATURE REQUIREMENTSa

Rooms or Spaces Minimum
Temperature
(degree F)

Habitable rooms in all buildings 70
Building equipment and machinery rooms 50
Patients' rooms, bathrooms and toilet rooms, stairs and corridors in hospitals and nursing homes 75
Bathrooms and toilet rooms, except patients' bathrooms and toilet rooms in hospitals and nursing homes 70
Offices, waiting rooms, art galleries, museums, libraries, meeting rooms, churches, classrooms,
auditoriums, lecture halls, night clubs, restaurants, theatres, locker rooms, dressing rooms, and spaces
where persons are engaged in sedentary activities

70
Laboratories, light machine work, product inspections, loft buildings, shops, stores, display rooms, show
rooms, sales rooms, and spaces where persons are engaged in moderate physical activities
70
*Laboratories, light machine work, product inspections, loft buildings, shops, stores, display rooms, show
rooms, sales rooms, and spaces where persons are engaged in moderate physical activities
65
Gymnasia, dance halls, skating rinks, bowling alleys, heavy assembly workrooms or shops, and spaces
where persons are engaged in vigorous physical activities
60
Automotive repair shops 50
Storage areas, garages, space where work or process requires a low temperature None
Hospital operating rooms, and recovery, labor, delivery, and nursery rooms 80
Swimming pools, bath houses, and shower rooms 75

Note for Table 12-1:
aWhere the listed temperatures differ from those that are required to be maintained under the provisions of section 131.03 of the New York City health code, the higher temperature shall apply.
*Duplicate designation enacted on line above, this designation is probably intended.
§27-741 Minimum Temperature Requirements
Heating systems shall be capable of producing the required minimum space temperatures as set forth in table 12-1. Where the occupancy of a space does not conform exactly with any of the spaces listed, the temperature shall be determined by the requirements of the listed space to which it most nearly conforms.
§27-742 Devices Producing Incidental Heat
Where a room or space contains equipment that produces heat, such as motors, generators, resistors, lights, compressors, steam heated vessels, etc., and where such equipment is in constant use during the period of occupancy, the equipment may be considered as a supplementary heating device. Its heating capacity may be deducted from the required capacity of the heating devices in the room.
§27-743 Capacity of Central Heat Sources
Where central heat sources are used, they shall have a gross output capacity sufficient to provide for the required heating load, including appropriate allowance for distribution losses, pick-up, and the heating of domestic hot water if the central heat source is used for that purpose.
§27-744 System Design
Where central heat sources are used, the heating system including all wiring, piping and/or ductwork, the heat sources and the various space heating devices shall be designed and installed so as to be capable of producing the minimum temperatures set forth in table 12-1. Also, the installation of the entire system shall be in accordance with applicable requirements of this subchapter and subchapters thirteen through sixteen of this chapter, and the electrical code of the city of New York.

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