Carbon-crystal panel (CCP), a new style floor electric heating system with characteristic of cleanliness and easily-regulation, is being applied more and more in civil heating field in our country. With the methodology combining experimental test and simulation research, the transient heating process of the standard experiment room installed with CCP system was analyzed in detail. The 24-hour temperature control process was simulated in some room in Beijing, and a reasonable scheme of temperature control was put forward, which provided a technical support for the energy-saving operation of this new kind electric heating system.