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 6620-01-187-7267
NSN 7035-01-431-9693
NSN 6320-00-456-2092
NSN 5895-00-607-9831
NSN 5835-01-332-2867
NSN 5925-00-422-3580
NSN 5895-00-218-6880
NSN 5998-01-655-7478
NSN 6135-01-286-9563
NSN 5920-01-553-1724
NSN 6105-00-242-1221
NSN 6685-00-824-7910