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 6145-00-617-4032
NSN 6240-01-659-2243
NSN 5945-01-116-3112
NSN 7035-01-633-9537
NSN 5835-01-282-9768
NSN 4140-01-592-3151
NSN 6220-00-778-7213
NSN 6145-01-634-0388
NSN 5895-01-657-4315
NSN 6650-01-145-5173
NSN 5835-00-177-2970
NSN 6620-01-057-2580