Pompa di calore solare ad aria con inverter DC

Based on our split type inverter solar-air double source Trinity heat pump, we develop this easier installation solar-air double source heat pump. Striking characters: DC inverter Double heat source superimposed to get world best COP 6.56 when solar water temp is 15c, legionella protection function, Auto start 2nd backup heating, Auto weather compensation heating curve. [...]