Due to the seasonal change’s temperatures are varying in winter season some countries are having the ‘-’ degree. So, the engineers are developing the heat pumps which are used to maintain the human comfortable temperatures in the work area like (home, industries, companies, farms… etc.) In nature we have many kinds of heat sources to generate or introduce the heat to your systems (HP) sources like (earth crust, solar, wind, seas, ponds, depth areas. etc.) Heat pumps are considered as easy to use while utilizing the possibility of bringing low-temperature heat sources to a higher temperature. Thus, low-grade renewable energy sources (such as air, water, ground, solar), as well as waste heat sources; can be used to reduce the demand for fossil fuels and greenhouse gas emissions. Their big advantage is in the supply of both heating and cooling, they can be operated even in simultaneous mode. This means that virtually no heat is dissipated, making such systems truly efficient.