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 6650-00-732-5031
NSN 7035-00-104-7613
NSN 5950-00-193-8607
NSN 6650-01-251-8520
NSN 5935-00-738-4240
NSN 5965-01-510-8501
NSN 4140-01-613-8430
NSN 6240-01-616-3334
NSN 5999-01-334-9811
NSN 5996-01-178-3849
NSN 6135-01-282-4326
NSN 6110-00-844-2564