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 6150-01-605-6124
NSN 6620-01-304-4747
NSN 5999-01-045-5884
NSN 5835-00-313-1788
NSN 5920-01-333-4876
NSN 6645-01-139-6473
NSN 6220-01-096-3816
NSN 5835-01-457-7951
NSN 6105-00-401-8548
NSN 6145-01-562-8763
NSN 5835-00-829-0670
NSN 5895-00-217-9012