5970-15-120-3436

4520-01-651-9189 4520016519189 016519189 is 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.