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 5950-00-878-8498
NSN 5975-01-258-9289
NSN 4140-00-404-7092
NSN 5990-01-548-5979
NSN 6645-00-595-5431
NSN 5990-00-518-0684
NSN 4140-01-256-0910
NSN 6240-00-005-4869
NSN 5985-01-322-4893
NSN 7035-01-510-4569
NSN 5895-01-382-9755
NSN 6685-00-388-8821