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 6220-01-309-0670
NSN 6650-00-585-2786
NSN 5925-01-113-6827
NSN 6240-01-045-9269
NSN 5975-01-322-7586
NSN 6150-01-499-6551
NSN 7035-00-541-8516
NSN 5996-01-632-6941
NSN 6150-00-824-4437
NSN 5990-01-246-2488
NSN 6650-01-463-4564
NSN 5999-01-065-2179