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 5910-00-554-1422
NSN 5975-01-422-9712
NSN 5855-01-327-6678
NSN 6620-01-502-7105
NSN 5975-01-471-9839
NSN 6620-01-559-1921
NSN 6220-01-482-8836
NSN 5935-00-468-2838
NSN 5915-01-068-3842
NSN 6105-01-172-1231
NSN 5990-00-583-9577
NSN 6685-01-510-1537