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 6645-01-552-0004
NSN 5985-00-205-9568
NSN 5835-00-564-0057
NSN 6620-01-552-4980
NSN 7035-00-173-2281
NSN 6130-00-368-9234
NSN 5985-01-206-4729
NSN 5990-01-147-5225
NSN 5999-00-201-4023
NSN 5950-01-514-1286
NSN 5950-00-846-7966
NSN 6610-00-692-4460