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 6105-00-305-5716
NSN 6645-01-059-2712
NSN 6685-01-144-4384
NSN 6105-01-411-5970
NSN 5925-01-571-5799
NSN 2925-01-548-4875
NSN 7035-01-123-0085
NSN 5925-00-248-5734
NSN 6685-00-481-3666
NSN 5925-01-302-5667
NSN 6130-00-921-4448
NSN 5998-01-442-8318