Section 102 – Nitrogen Oxide emission limits for natural gas-fired water heaters.

Effective 7/1/2020 15A-6-102. Nitrogen Oxide emission limits for natural gas-fired water heaters. (1) As used in this section: (a) “BTU” means British Thermal Unit. (b) (i) “Heat input” means the heat of combustion released by fuel burned in a water heater based on the heating value of the fuel. (ii) “Heat input” does not include […]