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G2427.12 (503.12) Draft Hoods and Draft Controls
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The installation of draft hoods and draft controls shall comply with Sections G2427.12.1 through G2427.12.7.
Vented appliances shall be installed with draft hoods.
Exception: Dual oven-type combination ranges; direct-vent appliances; fan-assisted combustion system appliances; appliances requiring chimney draft for operation; single firebox boilers equipped with conversion burners with inputs greater than 400,000 Btu per hour (117 kW); appliances equipped with blast, power or pressure burners that are not listed for use with draft hoods; and appliances designed for forced venting.
A draft hood supplied with or forming a part of a listed vented appliance shall be installed without alteration, exactly as furnished and specified by the appliance manufacturer.
If a draft hood is not supplied by the appliance manufacturer where one is required, a draft hood shall be installed, shall be of a listed or approved type and, in the absence of other instructions, shall be of the same size as the appliance flue collar. Where a draft hood is required with a conversion burner, it shall be of a listed or approved type.
Where it is determined that a draft hood of special design is needed or preferable for a particular installation, the installation shall be in accordance with the recommendations of the appliance manufacturer and shall be approved.
Where a draft control device is part of the appliance or is supplied by the appliance manufacturer, it shall be installed in accordance with the manufacturer's instructions. In the absence of manufacturer's instructions, the device shall be attached to the flue collar of the appliance or as near to the appliance as practical.
Appliances requiring a controlled chimney draft shall be permitted to be equipped with a listed double-acting barometric-draft regulator installed and adjusted in accordance with the manufacturer's instructions.
Draft hoods and barometric draft regulators shall be installed in the same room or enclosure as the appliance in such a manner as to prevent any difference in pressure between the hood or regulator and the combustion air supply.
Draft hoods and draft regulators shall be installed in the position for which they were designed with reference to the horizontal and vertical planes and shall be located so that the relief opening is not obstructed by any part of the appliance or adjacent construction. The appliance and its draft hood shall be located so that the relief opening is accessible for checking vent operation.
A draft hood shall be located so its relief opening is not less than 6 inches (152 mm) from any surface except that of the appliance it serves and the venting system to which the draft hood is connected. Where a greater or lesser clearance is indicated on the appliance label, the clearance shall be not less than that specified on the label. Such clearances shall not be reduced.
Related Code Sections
G2427.12 Fuel Gas, (503.12) Draft Hoods and Draft Controls
The installation of draft hoods and draft controls shall comply with Sections G2427.12.1 through G2427.12.7 ...
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G2427.12.7 Fuel Gas, (503.12.7) Clearance
A draft hood shall be located so its relief opening is not less than 6 inches (152 mm) from any surface except that of the appliance it serves ...
Residential Code 2018 of Kansas > 24 Fuel Gas > G2427 (503) Venting of Appliances > G2427.12 (503.12) Draft Hoods and Draft Controls > G2427.12.7 (503.12.7) Clearance
G2427.12.4 Fuel Gas, (503.12.4) Additional Devices
Appliances requiring a controlled chimney draft shall be permitted to be equipped with a listed double-acting barometric- draft regulator ...
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G2427.12.2.1 Fuel Gas, (503.12.2.1) Draft Hood Required
If a draft hood is not supplied by the appliance manufacturer where one is required, a draft hood shall be installed, shall be of a listed ...
Residential Code 2018 of Kansas > 24 Fuel Gas > G2427 (503) Venting of Appliances > G2427.12 (503.12) Draft Hoods and Draft Controls > G2427.12.2 (503.12.2) Installation > G2427.12.2.1 (503.12.2.1) Draft Hood Required
G2427.12.2.2 Fuel Gas, (503.12.2.2) Special Design Draft Hood
Where it is determined that a draft hood of special design is needed or preferable for a particular installation, the installation shall ...
Residential Code 2018 of Kansas > 24 Fuel Gas > G2427 (503) Venting of Appliances > G2427.12 (503.12) Draft Hoods and Draft Controls > G2427.12.2 (503.12.2) Installation > G2427.12.2.2 (503.12.2.2) Special Design Draft Hood