... 2.COP: 5.2 3.Patent Titanium heat exchanger 4.CE & ETL Air To Water Pool Heat Pump, ... of energy saving, the unit can save more 3/4 eletricity power for your family each month .FEATURES1) Design ... factory. CERTIFICATIONSCE, CB, EC, ETL, CETL, C-TICK, WATER MARK, STANDARD MARK, UL, SABS, SANS, SAA, SASO, VDE, RoHS, REACH, ... , CB, EC, ETL, CETL, C-TICK, WATER MARK, STANDARD MARK, UL, SABS, SANS, SAA, SASO)