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 5985-01-051-0133
NSN 4140-00-289-9263
NSN 6650-01-279-7136
NSN 6150-00-696-4295
NSN 4140-01-367-8058
NSN 5930-00-696-5048
NSN 5855-01-095-5299
NSN 5950-00-605-5794
NSN 6650-01-014-5990
NSN 6135-00-990-1822
NSN 5965-01-088-5414
NSN 6610-01-178-0333