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 7035-01-541-9818
NSN 5999-01-628-0273
NSN 6650-01-231-2082
NSN 6620-01-379-3300
NSN 6220-01-282-6572
NSN 6610-00-753-2281
NSN 6220-01-200-8051
NSN 6645-01-500-0827
NSN 6620-01-649-0748
NSN 5990-00-421-5135
NSN 6110-01-212-3344
NSN 6320-00-036-3688