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A warm-air furnace normally installed in an air distribution duct to supply warm air for heating. This definition shall apply only to a warm-air heating appliance that, for air circulation, depends on a blower not furnished as part of the furnace.
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Related Code Sections

Section 911 Specific Appliances, Fireplaces and Solid Fuel-Burning Equipment, Duct Furnaces
Duct furnaces shall be installed in accordance with the manufacturer's instructions. Electric duct furnaces shall comply with UL 1996 ...
Section 911 Specific Appliances, Fireplaces and Solid Fuel-Burning Equipment, Duct Furnaces
Duct furnaces shall be installed in accordance with the manufacturer's instructions. Electric duct furnaces shall comply with UL 1996 ...
Section 911 Specific Appliances, Fireplaces and Solid Fuel-Burning Equipment, Duct Furnaces
Duct furnaces shall be installed in accordance with the manufacturer's instructions. Electric duct furnaces shall comply with UL 1996 ...
Section 610 Specific Appliances, (IFGC) Duct Furnaces
Duct furnaces shall be tested in accordance with ANSI Z83.8/CSA 2.6 or UL 795 and shall be installed in accordance with the manufacturer's ...
911.1 Specific Appliances, Fireplaces and Solid Fuel-Burning Equipment, General
Duct furnaces shall be installed in accordance with the manufacturer's instructions. Electric duct furnaces shall comply with UL 1996 ...