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 6240-00-965-0533
NSN 6135-00-448-5642
NSN 6130-00-968-0750
NSN 6685-00-153-3914
NSN 5999-01-068-2889
NSN 5975-01-414-5326
NSN 5996-01-659-0882
NSN 6320-00-459-8973
NSN 6650-00-195-7519
NSN 6135-01-235-4168
NSN 6645-00-030-8030
NSN 6620-01-426-2220