... key; electrical auxiliary heater 3/6/9kw; higher COP air source heat pump KP-180 split typeGeneral characteristics: LCD Control with induction ... house heating. There is always enough air available for an air to water heat pump. Suntree Heat pumps are equipped with defrosting system ... tank outside) Capacity: 6kw, 8kw, 10kw, 12kw, 16kw--- all in one type 12kw, 16kw, 20kw, 25kw, 33kw, 40kw-----split type.