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 5935-00-133-0548
NSN 5905-00-624-5521
NSN 6135-01-222-0703
NSN 4140-01-422-4431
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NSN 6685-00-856-8680
NSN 7035-01-441-7586
NSN 5999-01-119-6569
NSN 6685-00-108-1108
NSN 6240-00-009-4117
NSN 6220-01-620-9609
NSN 6145-01-376-2051