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 6220-00-570-0610
NSN 5915-00-623-3043
NSN 5965-01-199-4242
NSN 5998-01-436-0199
NSN 5925-00-111-1969
NSN 4140-00-470-4707
NSN 5920-01-086-7219
NSN 5990-01-061-5618
NSN 5925-01-458-6449
NSN 6620-00-621-6951
NSN 5965-00-185-9687
NSN 6645-01-541-2425