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 5965-01-646-9972
NSN 5835-01-126-9358
NSN 6645-00-435-5610
NSN 6645-01-349-1631
NSN 5990-01-074-6549
NSN 6240-00-296-0488
NSN 6145-01-225-9931
NSN 6620-00-041-3406
NSN 5996-01-471-0761
NSN 6685-00-858-5799
NSN 4140-01-048-5472
NSN 5999-01-463-8641