To cause combustion to be stable even when a combustion amount is metered for suppressing generation of bad odors and further enable a kerosene stove to be used under a low combustion.

A wick 5 is arranged internally in a clearance between a pipe in the core 2 installed at an upper part of an oil tank 1 and a wick outer cylinder 3, in such a way that it is movable vertically, and then a wick inner cylinder top plate 6 having a combustion cylinder 7 mounted via an air flowing clearance is fixed to the upper part of the pipe in the core 2. A step part 2a is counterposed to a receiving part 6a of the combustion cylinder 7 of the wick inner cylinder top plate 6 via a clearance, and at the same time a step 2a having an outer shape of the pipe in the core 2 narrowed is arranged at the upper part of the pipe in the core 2, the step 2a is formed as an inward tapered shape, and a substantially triangular space A is formed by a horizontal receiving part 6a of the pipe in the core top plate 6 and a cylindrical part 6b, which is continuous from the receiving part 6a to extend downwardly to cause its lower end to form a small clearance together the pipe in the core 2. The pipe in the core 2 is thermally insulated by the space A from the combustion cylinder 7 to keep a low temperature, and kerosene vapor dispersed in the space A is changed into dew at the step 2a and is returned to the wick 5.