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 6645-00-547-4388
NSN 5925-01-148-3262
NSN 5915-01-267-7199
NSN 6130-00-864-5210
NSN 5965-01-218-5003
NSN 6645-01-075-7722
NSN 6240-00-956-6424
NSN 5999-01-158-0455
NSN 5975-00-561-4844
NSN 4140-01-507-6627
NSN 6110-01-139-3154
NSN 5945-01-074-3045