... Swimming pool equipment, heat pump with Titanium heat exchanger, CE,ETL,SAA High COP above 5.2Shell material: spraying metal ... high-efficiencyUsing heat pump technology, compared with otherordinary hot water equipment (for example, combustion oil boilers, combustion gas boilers, ... pump, creates an extremely quiet machine. Swimming pool equipment, heat pump with Titanium heat exchanger, CE,ETL,SAA