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 6320-01-547-9877
NSN 5895-01-227-3696
NSN 5990-00-522-3425
NSN 4140-01-236-5694
NSN 6145-01-432-2066
NSN 5915-00-932-2301
NSN 5990-01-330-4552
NSN 6135-00-889-1485
NSN 5925-01-559-0243
NSN 7035-01-204-7481
NSN 2925-00-964-7128
NSN 5905-01-010-3320