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 6645-01-521-3180
NSN 7035-01-509-1959
NSN 5960-00-275-7497
NSN 6610-01-172-4041
NSN 5915-01-325-2415
NSN 6105-01-417-2010
NSN 5975-01-556-6719
NSN 5985-00-905-0542
NSN 7035-01-140-5942
NSN 5999-00-548-1663
NSN 6240-01-525-2401
NSN 6610-00-170-6715