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(a) Minimum Heat Requirements.
(1) Dwelling units, guest rooms and congregate residences of one habitable room other than the kitchen, heat capable of maintaining a room temperature of 70 degrees Fahrenheit at a point midway between the heating unit and the farthest wall and which point is four feet six inches above the floor, shall be made available to such habitable room for 11 hours between the hours of 6:00 a.m. and 12:00 midnight.
(2) Dwelling units, guest rooms and congregate residences containing two or more habitable rooms, heat capable of maintaining a room temperature of 70 degrees Fahrenheit at a point midway between the heating unit and the furthest wall and which point is four feet six inches above the floor in the habitable rooms, shall be made available to the main room which is the room to which the other habitable rooms circulate for 11 hours between the hours of 6:00 a.m. and 12:00 midnight.
(3) In every guest room except as specified in Section 707(c), heat shall be provided as herein above required for a dwelling unit with only one habitable room.
(4) Heat shall be furnished, within the guest room, congregate residence or dwelling unit by heating units located within the guest room, congregate residence or dwelling unit or from ductwork openings in the walls, floor or ceiling of said guest rooms, congregate residences or dwelling units. No direct openings for the entrance of heat shall be permitted between the exit corridor and the guest room, congregate residences or dwelling unit.
(5) The cost of maintaining heat as herein above required shall be a matter of agreement between the landlord and tenant thereof.
(6) Such facilities shall be installed and maintained in a safe condition and in accordance with the Building Code and all other applicable laws.
(b) Portable Heaters. All individual heaters installed in dwelling units, guest rooms and guest room suites must be permanently attached and properly wired. Wiring for heaters shall conform to the San Francisco Electrical Code.
(c) Heat Requirements in Apartment Houses and Hotels.
(1) Apartment houses and hotels shall comply with the requirements set forth in Section 701 above except that heat capable of maintaining a room temperature of 68 degrees Fahrenheit (20 degrees Centigrade) at a point midway between the heating unit and the furthest wall and which point is three feet above the floor, shall be made available to each occupied habitable room for 13 hours between the hours of 5:00 a.m. and 11:00 a.m. and 3:00 p.m. and 10:00 p.m.
(2) In every building in which the heating system is not under the control of the tenant or occupant, a locking or nontamperable temperature-sensing device with a ±1½-degree Fahrenheit (0.8 degree Centigrade) tolerance shall be centrally located within the building in a habitable room to which heat is provided, whether occupied or unoccupied. The nontamperable device shall not be installed in a manager's unit or an owner's unit (except in an owner-occupied residential condominium). This device shall cause the heating system to cease heat production when the habitable room temperature exceeds 68 degrees Fahrenheit (20 degrees Centigrade) and reactivate the system when the temperature drops below 68 degrees Fahrenheit (20 degrees Centigrade).
(3) A timeclock set to provide the amount and hours of heat required in this Section shall be installed at or near the heating source (boiler, furnace, etc.) to control the heating system. A thermostat bypass switch wired in parallel with the thermostat shall be provided to allow testing of the boiler operation. This switch shall be located at or near the heating source.
(4) Except as otherwise provided in this Section, remotely located switches which override timeclock operation shall be prohibited.
(d) Electrical Equipment. All electrical fixtures, wiring and appurtenances hereto and their maintenance shall comply with the San Francisco Electrical Code and all other applicable sections of the laws of the State of California and the Municipal Code.
(e) Mechanical Ventilation. The provisions and requirements of the San Francisco Mechanical Code shall govern the installation and operation of mechanical ventilation systems and equipment.
(Added by Ord. 399-89, App. 11/6/89; amended by Ord. 161-92, App. 6/4/92; Ord. 350-95, App. 11/3/95; Ord. 192-02, App. 9/17/2002; Ord. 256-07, App. 11/6/2007)