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801.1.1.8 Variance.
The commissioner may grant a variance in accordance with the provisions of this code.
801.2 General.
Every fuel-burning appliance shall discharge the products of combustion to a vent, factory-built chimney or masonry chimney, except for appliances vented in accordance with Section 804. The chimney or vent shall be designed for the type of appliance being vented.
Exception: Commercial cooking appliances vented by a Type I hood installed in accordance with Section 507.
801.2.1 Design.
Chimneys and vents shall be designed and constructed so as to provide the necessary draft and capacity for each appliance connected to completely exhaust the products of combustion to the outside air. The temperature on adjacent combustible surfaces shall not be raised above 160°F (71.1°C). Chimneys and vents shall be designed to resist the effects of condensation that would cause deterioration of the chimney or vent.
801.2.2 Outlets.
The outlet shall be arranged so that the flue gases are not directed so that they jeopardize people, overheat combustible structures, or enter building openings in the vicinity of the outlet.
801.2.3 Support.
Chimneys and vents shall not be supported by the equipment they serve unless such equipment has been specifically designed for such loads.
801.2.4 Oil-fired appliances.
Oil-fired appliances shall be vented in accordance with this code and NFPA 31.
801.2.5 Gas fired appliances.
Gas fired appliances shall be vented in accordance with the New York City Fuel Gas Code.
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