LIQUID FUEL VAPORIZING-COMBUSTING DEVICE

PROBLEM TO BE SOLVED: To reduce a consumption power by a heater by providing a liquid fuel pre-heating means in order to pre-heat a liquid fuel which is fed to a vaporizing part. SOLUTION: When a combustion starts, a carburetor 12 is heated by the heating of a heater 19 and the combustion heat received by a fin 13, and as a result, a liquid fuel is vaporized, and the combustion state is maintained. Also, the temperature of the carburetor 12 is monitored by a first thermistor 23. In addition, the power turning-on amount to the heater 19 is appropriately controlled so that the monitored temperature may be maintained within a specified range. Then, during a combustion, an exhaust gas of a high temperature which generates in a burner head 18, climbs in an exhaust gas cylinder 28, and comes into contact with a fuel feeding pipe 10 and its fin 11. At this time, a heat-exchange is generated between the liquid fuel of a low temperature which flows in the fuel feeding pipe 10, and the exhaust gas of a high temperature, and thus, the liquid fuel is heated. The liquid fuel which is pre-heated in such a manner is dripped on a vaporizing surface of the carburetor 12, and is vaporized there.