Paddy the material with the sweltering heat characteristic in every trial. There is temperature fluctuation in a slow level. The smoke carbon tapping around the surface of the work pieces from firing, can be seen and the result of the experiment J1 research found that there are distinct differences of smoke carbon weight on work piece, which is the heat from combustion to the ashes that is the accumulated heat with low oxygen caused by the finesse of the raw materials which caused the smoke carbon those area.