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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 6620-00-130-0815
NSN 5975-01-433-2527
NSN 6320-00-343-1798
NSN 6650-00-166-7160
NSN 6620-01-628-2620
NSN 7035-01-202-9250
NSN 6220-01-246-0277
NSN 6645-00-168-0781
NSN 5925-01-391-4986
NSN 5999-00-130-1865
NSN 6610-01-493-4936
NSN 5975-00-858-6488