By using the heat energy in the air, it provides energy savings up to 80% while transferring the heat to the plumbing water circulating in your house. It has heating and cooling modes. In heating mode, it can convert 7 degrees of heat from the air into 35 degrees water. It has a capacity of 7.2-21.8 kW in heating mode and an efficiency of COP 4.61. In cooling mode, it receives a 35 degree temperature of the air can transform the water of 7 degrees. It has a capacity of 6.4-16.7 kW in cooling mode and an efficiency of EER 3.24.