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 5960-00-759-2534
NSN 2925-00-398-0253
NSN 5925-00-561-7328
NSN 6240-01-209-6639
NSN 6135-01-079-7852
NSN 6130-01-198-8839
NSN 5985-00-436-7090
NSN 5915-01-135-9847
NSN 5935-01-345-1295
NSN 5945-01-380-7366
NSN 6220-00-834-2838
NSN 6145-01-305-0211