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 6620-01-605-1465
NSN 6620-01-465-9885
NSN 6320-01-309-4407
NSN 5920-01-495-6456
NSN 6110-01-160-9142
NSN 5945-00-009-3287
NSN 6110-01-390-7856
NSN 6145-01-474-5459
NSN 5930-00-008-8417
NSN 6220-00-432-4258
NSN 7035-01-551-5533
NSN 6645-00-542-1734