A. Dampers integral to furnaces or boilers must be removed or permanently secured in open position so as not to interfere with normal operation of gas or oil burner.
B. All commercial and domestic gas and oil installations or any combination thereof, shall be installed, according to manufacturer's specifications, so as to comply with all safety regulations.
C. Return air ducts from living quarters or from outside building must be provided and connected directly to the furnace.
D. All gas heating appliances shall be equipped with approved one hundred percent shut off safety pilots and any other safety devices to insure the safe and proper operation of the appliance.
E. All closed room installations shall be equipped with outside ventilation, to be one inch of opening for each one thousand Btu input, at ceiling, floor or wall.
F. All closet type installations shall have circulating return air duct connection to living quarters.
G. New domestic and commercial gas consuming appliances shall not be installed unless their correctness as to design, construction and performance is certified by the following: Determined by a nationally recognized testing agency adequately equipped and competent to perform such services and shall be evidenced by the attachment of its seal or label to such gas appliances. This agency shall be one which maintains a program of national inspection of production models of gas appliances at least once a year on the manufacturer's premises. Approval by the American Gas Association Laboratories, as evidenced by a certificate or letter certifying approval under the above-mentioned requirements, or listing by Underwriter's Laboratories, Inc., shall be considered as constituting compliance with the provisions of this section.
H. Hand fired and stoker fired equipment shall conform with rulings of National Board of Fire Underwriters.
(Prior code § 14.301(1)).