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 5965-01-098-7028
NSN 6240-00-123-7648
NSN 5905-00-221-4483
NSN 4140-00-862-5644
NSN 5855-00-256-5562
NSN 5905-01-499-3745
NSN 5975-00-364-6919
NSN 5960-01-376-3880
NSN 5975-01-319-6892
NSN 5925-01-641-7379
NSN 6620-00-210-8406
NSN 6145-01-345-4531