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 5975-00-253-9743
NSN 6110-00-061-9239
NSN 5935-01-004-1541
NSN 4140-00-134-4463
NSN 5996-01-593-7789
NSN 5835-01-457-7951
NSN 6685-00-960-7667
NSN 5990-01-257-2476
NSN 5975-01-628-8246
NSN 5915-01-515-0156
NSN 5905-01-523-3429
NSN 4140-01-167-5741