The Hitachi Yutaki AirH2O 400 is a heat pump split system that converts energy from the outside air into heat for your home. Using a refrigerant circuit, it consumes a minimal amount of electricity while extracting a large amount of heat from even -25℃ air, delivering it to your home for heating. It boasts an exceptionally high efficiency, producing up to 5.1 kW of thermal energy while consuming only 1.0 kW of electricity. Compared to traditional electric or solid fuel boilers, the HITACHI airH2O 400 system consumes an average of three times less energy during the heating period.