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 6620-01-461-3550
NSN 5920-01-609-0277
NSN 5960-00-884-2535
NSN 6685-00-179-2548
NSN 5985-01-261-1203
NSN 6240-00-914-1038
NSN 6620-01-633-8443
NSN 2925-01-027-1293
NSN 6650-00-692-1541
NSN 2925-01-511-1898
NSN 6645-01-068-3042
NSN 5950-01-646-7192