Water to Water heat pump 1) Heating Capacity: (10kw-100kw) 2) Power supply: 220V/380V; 3) European design, no screw outside. 4) Light-touch-pad control panel, easy and simple. 5) Quiet: the system design is optimized to reduce vibration, with noise insulati) Alon inside, low noise. 6) Also Suitable for brine 7) Compact design 8) Long life up to 15 years, low mantenance cost.