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 6610-00-450-0796
NSN 5895-00-360-0117
NSN 6685-00-492-8043
NSN 5895-01-216-6194
NSN 5895-01-069-3279
NSN 7035-01-440-8877
NSN 5920-01-608-2788
NSN 4140-01-626-7993
NSN 6320-01-006-6138
NSN 6220-01-063-7287
NSN 6610-00-470-8188
NSN 5950-01-031-1068