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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 5975-00-457-0611
NSN 5985-00-186-8755
NSN 6105-01-519-4223
NSN 6135-00-284-1406
NSN 6320-01-652-3806
NSN 5965-01-173-2486
NSN 5925-00-939-4979
NSN 6135-00-519-1325
NSN 5950-00-050-2597
NSN 5975-01-315-2764
NSN 5905-01-433-9834
NSN 4140-01-328-1948