Applicable in different laboratories, carbon residue apparatus is made using various materials such as mild steel, brass, cast iron and others. The salient features of this lab apparatus are used for calculating carbon% in petroleum products. This laboratory apparatus has a cooking furnace which is integrated with five bulb wells. It has top features that allow accurate control and management of the temperature by the application of a solid state time proportional to the digital controller that is fully automatic. In addition, the carbon residue operators also have a thermocouple for temperature control purposes.