1)This device of swimming pool heat pump/ pool heater can be widely used the constant temperature swimming pool and sauna constant hot water system. Which supply hot water to heat the pool or provide the hot water. 2)Type: Side discharge swimming pool heat pump/ pool heater and Top discharge swimming pool heat pump/pool heater 3)Capacity ranges from: 3.5kw, 4.2kw, 7kw, 9kw, 12kw, 15kw & 20kw for side discharge swimming pool heat pump/pool heater. 4.2KW, 5.3KW, 8KW, 12KW for top discharge swimming pool heat pump/ pool heater. 4)Gas: R407C mainly. 5)With Titanium Exchanger with long operating life. 6)Galvanized panel which is rustless. 7)With CE approval for swimming pool heat pump/pool heater. 8)With RoHS compliance for swimming pool heat pump/pool heater.