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 5990-01-452-0911
NSN 6620-00-248-6950
NSN 5985-01-574-4908
NSN 5925-01-196-2083
NSN 6130-01-438-2602
NSN 2925-01-157-9204
NSN 6135-00-777-5562
NSN 6135-01-545-6582
NSN 5998-00-952-0609
NSN 5925-00-738-7301
NSN 5835-01-293-6453
NSN 5998-01-415-3592