675 IAC 15-2-81 Venting and combustion air systems

Sec. 81. (a) The venting as required by 675 IAC 15-2-78(b) shall be accomplished by one or more of the methods given in (a)(1) and (a)(2) below: (1) An integral vent system listed or certified as part of the appliance. (2) A venting system consisting entirely of listed components, including roof jack, installed in accordance with the terms of the appliance listing and the appliance manufacturer's instructions (see 675 IAC 15-2-80(b)). (b) Venting and combustion air systems shall be installed in accordance with the following: (1) Components shall be securely assembled and properly aligned using the method shown in the appliance manufacturer's instructions. (2) Draft hood connectors shall be firmly attached to draft hood outlets of flue collars by sheet metal screws or by an equivalent means. (3) Every joint of a vent, vent connector, exhaust duct and combustion air intake shall be secure and in alignment. (c) Venting systems shall not terminate underneath a mobile structure. (d) Venting system terminations shall be not less than three feet (3') from any motor-driven air intake discharging into habitable areas. (e) The area in which cooking appliances are located shall be ventilated by a metal duct which may be single wall, not less than 12.5 square inches in cross-sectional area (minimum dimension shall be two inches (2") located above the appliance(s) and terminating outside the mobile structure, or by listed mechanical ventilating equipment that is installed in accordance with the terms of listing and the manufacturer's instructions. Gravity or mechanical ventilation shall be installed within a horizontal distance of not more than ten feet (10') from the vertical front of the appliance(s).