a. Gas-fueled or electric space or water heaters, where permitted by this article as an alternative to a central supply of heat or hot water, shall be governed by the provisions of this section.
b. The capacity, number and location of such heaters shall be such as to furnish the same standard of heat or hot water supply, as the case may be, as is required to be furnished from a central heat or hot water system.
c. Electric heaters shall be approved by Underwriters Laboratories, Inc. and shall comply with applicable provisions of the building code and the multiple dwelling law.
d. Gas-fueled heaters shall comply with article nine of this subchapter and with applicable provisions of the building code and the multiple dwelling law, but any such heater lawfully in existence on July fourteenth, nineteen hundred sixty-seven which does not comply with subdivision b of section 27-2034 of article nine of this subchapter shall comply with such section by July fourteenth, nineteen hundred seventy-eight. No person shall cause or permit to be occupied for sleeping purposes any room containing such a non-complying heater. Any heater installed in replacement of any such non-complying heater shall comply with all provisions of article nine of this subchapter.
e. The owner shall not, unless otherwise agreed between owner and tenant, be required to pay for the gas or electricity used by such heaters.
f. Notwithstanding any provision of prior law, it shall be the duty of the owner to keep each such heater in good repair and good operating condition, regardless of the identity of the person originally owning or installing the heater.
g. The owner shall instruct each successive tenant of an apartment in which such heaters are installed as to safe and proper method of using and operating such heaters.
h. The department may make and enforce regulations supplementary to the provisions of this section and article nine of this subchapter to secure an adequate supply of heat and hot water and to protect the health and safety of tenants.