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 5985-00-270-8456
NSN 6645-00-003-0338
NSN 5925-01-536-9179
NSN 6320-01-347-2638
NSN 6110-01-478-4909
NSN 5990-01-458-2531
NSN 5996-00-819-0389
NSN 5835-00-984-1233
NSN 5945-00-644-9181
NSN 5945-01-326-8286
NSN 6620-01-332-0623
NSN 5998-01-067-8494