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 5975-01-123-9111
NSN 6685-00-785-0905
NSN 6150-00-804-5364
NSN 5920-01-280-5089
NSN 6220-01-049-4536
NSN 6240-01-249-2284
NSN 6645-00-063-1996
NSN 6150-01-445-7690
NSN 5950-00-408-1628
NSN 6610-01-081-7532
NSN 6650-01-246-4262
NSN 5920-00-209-0443