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 6685-01-461-6992
NSN 5925-01-604-4008
NSN 5835-01-485-0210
NSN 6645-01-659-1583
NSN 5985-01-163-8573
NSN 5950-00-293-9931
NSN 6220-00-893-9776
NSN 5960-00-153-7115
NSN 6240-01-187-7758
NSN 5920-00-117-8280
NSN 2925-00-149-0760
NSN 2925-00-782-1498