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 5965-01-138-0707
NSN 5985-01-067-9137
NSN 6145-01-474-6440
NSN 6135-00-228-8140
NSN 2925-01-485-6262
NSN 4140-00-343-2121
NSN 5985-01-376-7455
NSN 5999-01-341-6784
NSN 5985-00-086-9364
NSN 5895-01-224-2725
NSN 6650-00-820-4577
NSN 6105-01-571-8902