A heat pump doesn't generate heat; it transfers it from one place to another. It's an appliance with a bright future in an eco-conscious country.

A group of scientists led by the Zhejiang University in China has developed a novel zeotropic refrigerant that can ... (REC), an evaporator (EVA), expansion valves (EXV1 and EXV2), control valves ...

followed by expansion in the expansion valve. In the evaporator, the refrigerant absorbs heat from the air inside the vehicle, and the blower then distributes the cooled air. Following these tips ...