Abstract: A perfect fuel gasification device for use in combination with a combustion apparatus in which there is provided a hollow cylindrical main body divided into a plurality of operation zones, an air or fuel conduit extending from and in fluid communication with said main body, fuel intake-spraying or intake-heating-spraying means and air heating means wherein liquid fuel is heated to a temperature below its boiling point under a high pressure, with the heated fuel being introduced into the spray means in a mist form to provide a wide contact surface and the fuel mist being mixed with an elevated temperature air to be perfectly gasified thereby.