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 2925-01-459-8093
NSN 6135-01-546-4588
NSN 2925-01-012-3162
NSN 6220-00-761-9520
NSN 5895-01-321-4664
NSN 2925-01-139-5144
NSN 5950-01-021-5615
NSN 5935-01-456-5368
NSN 5935-00-895-6415
NSN 6650-01-177-4398
NSN 5835-01-034-1255
NSN 4140-01-077-3981