N.Y.C. Admin. Code § FGC 624: Section FGC 624: Water Heaters

624.1 General.

Water heaters shall be tested in accordance with ANSI Z21.10.1/CSA 4.1 and ANSI Z21.10.3/CSA 4.3 and shall be installed in accordance with the manufacturer's instructions. Water heaters utilizing fuels other than fuel gas shall be regulated by the New York City Mechanical Code. Approval for water heaters 350,000Btu/h input (102.6 kW) and above shall be obtained from the New York City Department of Environmental Protection.

624.1.1 Installation requirements.

The requirements for water heaters relative to sizing, relief valves, drain pans and scald protection shall be in accordance with the New York City Plumbing Code and the following:

1. No person shall install or maintain in any dwelling unit a gas fuel fired water heater unless the heater obtains combustion air directly from the outside of the building.

2. No person shall install or maintain a gas fueled water heater in a room occupied for sleeping purposes, or cause or permit to be occupied for sleeping purposes any room in which a gas-fueled heater is installed.

3. Each heater shall be connected to a flue or outlet pipe.

624.2 Water heaters utilized for space heating.

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.