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 6620-00-079-4615
NSN 5975-00-212-7754
NSN 6645-00-955-7997
NSN 5925-00-878-6034
NSN 6135-01-205-5965
NSN 5945-01-220-7380
NSN 5945-01-392-1068
NSN 5998-01-112-7810
NSN 5855-00-151-3853
NSN 6685-00-327-6401
NSN 5960-01-160-3437
NSN 5855-01-581-5827