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 5935-01-089-6756
NSN 6105-01-582-8303
NSN 6110-00-250-7913
NSN 6650-00-623-5969
NSN 6130-01-584-9057
NSN 5960-00-400-7693
NSN 6145-01-181-6198
NSN 5910-01-602-4099
NSN 4140-01-277-6355
NSN 6650-00-804-2039
NSN 5925-01-541-8343
NSN 5985-01-377-0137