624.2 Water heaters utilized for space heating.
FGC § 624.2
Water heaters utilized both to supply potable hot water and provide hot water for space-heating applications shall be listed and labeled for such applications by the manufacturer, and shall be built in accordance with Section IV of the ASME Boiler and Pressure Vessel Code with an "H" code stamp. They shall be installed in accordance with the manufacturer's instructions, the ASME Boiler and Pressure Vessel Code and the New York City Plumbing Code.













