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 2925-01-394-9658
NSN 5985-01-513-4983
NSN 5905-01-486-8882
NSN 6145-00-920-4700
NSN 6620-01-140-4405
NSN 5975-00-486-8518
NSN 5990-01-416-6009
NSN 5960-01-367-6153
NSN 6110-00-126-3740
NSN 6220-01-230-0872
NSN 5990-00-756-6059
NSN 5950-01-592-6725