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 4140-01-386-5106
NSN 6220-00-452-5308
NSN 5925-00-779-7307
NSN 5930-01-573-4672
NSN 5925-00-529-0441
NSN 5920-01-520-8109
NSN 5925-01-329-8216
NSN 5895-01-429-6998
NSN 2925-01-261-0701
NSN 6130-01-388-6043
NSN 5999-01-239-9762
NSN 6105-01-416-7979