2113.1 General.
BC § 2113.1
The construction of masonry chimneys consisting of solid masonry units, hollow masonry units grouted solid, or stone shall be in accordance with this section. Chimneys shall be designed and constructed so as to provide the necessary draft and capacity for each appliance connected to them 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°C). Chimney and vents shall be designed to resist the effects of condensation that would cause deterioration of the chimney or vent. In any case, 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. Gas-fired appliances shall be vented in accordance with this code, the New York City Fuel Gas Code and NFPA 54. Chimneys shall not be supported by the equipment they serve unless such equipment has been specifically designed for such loads.
