1.Solar+air+electric+tank all in one system 2.COP 5.4 3.Dc ... radiators,coil,water SAVE ENERGY, COMFORTABLE WARMTH IN YOUR HOME ENS All in one heat pump is a synthetical system with ... .,air source heat pump, two plate heat exchange ,solar system connection, The system recovers energy from the ventilation ... measured at 1m from the unit Heat Pump All In One ( 5KW, Air +solar DC inverter heat pump )