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 5985-00-245-2714
NSN 5895-01-311-7656
NSN 5999-01-127-8717
NSN 6135-01-104-3790
NSN 6650-01-529-6721
NSN 5835-01-133-6485
NSN 7035-01-027-2259
NSN 6105-00-635-9809
NSN 6650-01-119-4576
NSN 5930-01-020-1698
NSN 6220-01-192-2911
NSN 7035-00-803-3056