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 6105-00-221-5049
NSN 5950-00-470-9402
NSN 6150-01-079-8863
NSN 6320-01-021-6633
NSN 5950-01-331-8057
NSN 6645-01-593-3608
NSN 6105-00-404-7656
NSN 5855-01-169-1706
NSN 4140-01-532-9296
NSN 6645-00-884-5845
NSN 6220-00-757-2025
NSN 5985-01-064-6892