RFY series fuel gas stove fuel through the burner burning, producing high temperature gas. And the heat conduction of high temperature gas is heated by the hot air stove with heat transfer enhancement, and the high temperature gas is reduced to 250 degrees by the heat emitted from the air. For heating of air by blower selection into the hot blast stove, heat temperature rise to the rated value sent from the hot air outlet, when the temperature of hot air reaches the rated upper limit, the burner can automatically stop the burning or automatically turn to small fire burning.