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 6610-00-901-5137
NSN 4140-01-332-3734
NSN 5920-01-429-1373
NSN 5855-00-466-2309
NSN 5985-01-483-4049
NSN 6645-01-549-8910
NSN 6130-01-407-8198
NSN 5925-01-529-6836
NSN 5925-01-253-0607
NSN 6320-01-462-2295
NSN 5905-01-146-5425
NSN 6105-01-235-3970