Furnace heating apparatus

Details Furnace heating apparatus Furnace heating apparatus

H - Electricity

05

B

327/116, 158/15,

H05B 3/10 (2006.01) H05B 3/40 (2006.01) H05B 3/64 (2006.01)

Patent

CA 1082914

Abstract A radiantly heated furnace is provided with a heating arrangement capable of generating heat from two different sources of energy. The arrangement includes a thin-walled tube extending within the furnace which operates as a resis- tor when connected to a high current source of electrical energy to generate and radiate heat within the furnace. The thin-walled tube also acts to radiate heat into the furnace from hot burner gases injected therein by a fuel fired burner. The arrangement is so constructed that switch- ing from the electric to the gas fire mode or vice versa can be swiftly effected without removal of electrical connections or burners.

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