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 5935-01-145-4664
NSN 5905-01-243-3631
NSN 7035-00-531-9925
NSN 6240-01-206-4148
NSN 5910-01-559-9149
NSN 5905-00-944-6868
NSN 7035-00-897-7567
NSN 5998-01-274-4652
NSN 5930-01-507-0130
NSN 4140-01-634-0330
NSN 5990-01-395-4194
NSN 5998-00-628-1340