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 2 heating, 1 cooling and 1 hot water modes. In heating mode 1, it can convert 7 degrees of heat from the air to 35 degrees water and works with a capacity of 12.92 kW and an efficiency of COP 4.34. In heating mode 2, it can convert 7 degrees of heat from the air into 45 degrees water and works with a capacity of 12.56 kW and an efficiency of COP 3.43. In cooling mode, it can convert 35 degrees heat from the air into 7 degrees water and works with a capacity of 9.57 kW and an efficiency of EER 2.77. In hot water mode, it can convert 20 degrees of heat from the air into 55 degrees water and works with a capacity of 14.18 kW and an efficiency of COP 4.35.