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 6620-00-922-6246
NSN 6685-00-631-0532
NSN 6145-00-502-1828
NSN 6145-00-764-4338
NSN 5945-01-484-0145
NSN 5895-01-452-9107
NSN 5895-00-674-3697
NSN 6105-00-398-4673
NSN 6135-00-110-1981
NSN 6645-01-609-7365
NSN 6685-01-560-1517
NSN 5945-01-069-4991