Based on the findings of the experiment that can be used to control carbon-tapping, it was found that the material factor affects the amount of carbon and the duration of temperatures occurring inside the kiln. The factors affecting the deposition of ash, that affects the carbon smoke on work pieces surface, according to the subsidence level of ash, and air ventilation factors affect the position of the carbon as the direction controlled by the operation of the wall kiln. Moreover, the principle of carbon control studied, can be applied in other formats of contemporary art.