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 5920-01-218-1733
NSN 5990-00-343-4465
NSN 6220-00-676-0904
NSN 6620-01-539-2729
NSN 5910-01-632-1370
NSN 5835-01-259-0859
NSN 6150-01-504-4172
NSN 4140-01-273-0196
NSN 6135-01-529-8523
NSN 6620-01-491-7001
NSN 5920-00-842-9055
NSN 6620-00-871-0592