... gas is being used 3.Suitable wide ambient temp range,-7~43 degree Parameters for Air Source Heat PumpModelKRS-03/AAKRS ... .001270.00Water pipe connectorG3/4"G1"Working ambient temperature(°C)(-)7~43Weight(Kg)30.0035.0042.0055.00105.00112.00Operation Noise ... above mentioned data are tested by the ambient temperature:DB:20°C,WB:15°C,Inlet water temperature 15 °C,Outlet ...