PURPOSE: To ignite very simply and also make the residue of unburnt material a very small amount by installing a heating element inserted in the groove of a base plate made of insulating material, heat-resisting material covering and fixing the surface of the element, and ventilating holes being communicating with the inside of the groove.

CONSTITUTION: A spiral groove 3 is formed in the surface of a base plate 2 and a heating element 4 such as a nichrome wire or other is inserted into the groove. A protecting part 5 made of heat-resisting material covers and fixes the whole surface of the inside and outside of the element 4 to prevent it from contacting air. Ventilating holes 6 are placed at every proper location in the groove 3 and linked with the inside of the groove. The element 4 is wrapped with the heat-resisting material to prevent the heating element from deterioration caused by the high temp. burning of fuel and also ventilation into the inside of the groove is possible by the continuous opening of a number of the ventilating holes or the groove and therefore, the accomplishment of cooling action further improves the protecting effect of the heating element and the molten residual ash of solid fuel is not adhered and is able to be easily discharged.