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 5985-01-630-4622
NSN 5895-01-634-0630
NSN 5945-01-384-3735
NSN 4140-01-502-6496
NSN 2925-01-560-4123
NSN 5965-01-408-0616
NSN 5990-01-290-4787
NSN 6150-01-073-2315
NSN 6645-00-900-5830
NSN 5930-01-008-7921
NSN 6320-01-575-6342
NSN 5985-01-617-0109