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 6645-01-422-1374
NSN 6240-01-420-9255
NSN 6110-01-113-9531
NSN 6135-00-191-6444
NSN 5998-00-548-9387
NSN 5950-01-540-2224
NSN 5905-00-083-3072
NSN 5998-01-511-0109
NSN 6110-01-213-0210
NSN 5975-00-646-8887
NSN 7035-01-340-3272
NSN 4140-00-418-2939