Due to the daily and gradual increase in power consumption, studies related to the environment heating optimization play a meaningful role. The electrical-thermal analogy can be used as a reference so that researchers are able to simulate heating and cooling behaviors in real situations. For this purpose, several simulation tools are used. This work-in-progress paper presents a framework to identify capacitance and resistance parameters from a monitored room in a Smart Building context using RC Circuits. The proposed framework uses NGSpice as the simulation tool.