This solar system uses a refrigerant fluid (R134a or R407c) in a closed circuit. The fluid enters the panel and exposed to the action of the sun, rain, wind, outside temperature, and other climate events. During this process, the fluid holds more heat than in a traditional solar thermal collector. After this process, a compressor sends the accumulated heat to a heat exchanger, transferring the heat into the water. The fluid cools down and the cycle repeats again.