A device capable of producing heat from gas, liquid fuel, or an electrical heating element designed for permanent installation in sheet metal ducts of a forced air circulating system. It consists of (1) a finned, steel burner tube, a combustion air blower, a control panel, and a constant level fuel supply system or (2) a device having a heating element which when connected to an electrical source, directly imparts heat. It may be provided with a flanged outer casing to facilitate mounting in planned or existing duct work. Circulation of the heated air is achieved by use of a blower or fan not integral with the heating unit.
Classification: Air heaters and hot air distributors, not electrically heated, incorporating a motor-driven fan or blower, and parts thereof, of iron or steel
NSN 6135-01-301-8776
NSN 4140-01-541-1633
NSN 6320-00-004-9158
NSN 5945-01-056-6437
NSN 5985-01-125-6788
NSN 6320-01-006-6138
NSN 5920-01-149-0642
NSN 6685-00-276-9889
NSN 5835-00-859-8330
NSN 5998-00-090-3561
NSN 6240-01-051-2557
NSN 6240-01-433-9410