304.1 General.
FGC § 304.1
Air for combustion, ventilation and dilution of flue gases for appliances installed in buildings shall be provided by application of one of the methods prescribed in Sections 304.5 through 304.9. Where the requirements of Section 304.5 are not met, outdoor air shall be introduced in accordance with one of the methods prescribed in Sections 304.6 through 304.9. Direct-vent appliances, gas appliances of other than natural draft design, vented gas appliances not designated as Category I and appliances equipped with power burners shall be provided with combustion, and dilution air in accordance with the appliance manufacturer's instructions. Combustion and dilution air shall be obtained solely from the outdoors for fuel-burning appliances with an input greater than 350,000 Btu/h (102.6 kW). Ventilation air shall be provided by any suitable means. The mechanical room shall comply with the requirements of Section 1012 of the New York City Mechanical Code and Sections C402.5.3 and R402.4.4, as applicable, of the New York City Energy Conservation Code. Exception: Type 1 clothes dryers that are provided with makeup air in accordance with Section 504 of the New York City Mechanical Code.
