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 5996-01-070-5556
NSN 5950-00-761-6427
NSN 4140-00-307-2732
NSN 6135-01-443-4484
NSN 6145-01-627-5093
NSN 6110-00-185-8147
NSN 5985-01-336-9521
NSN 5990-01-348-9843
NSN 6685-00-451-6941
NSN 5925-00-235-2870
NSN 6620-01-446-6571
NSN 5925-01-313-3895