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 5895-00-140-4504
NSN 4140-00-892-5952
NSN 5960-00-763-5390
NSN 5960-01-074-9388
NSN 5975-00-229-9593
NSN 5945-01-034-2196
NSN 5910-01-148-1179
NSN 5935-00-168-1322
NSN 5910-00-174-5759
NSN 5855-00-361-0167
NSN 5950-01-212-0890
NSN 6610-01-431-8575