Features: 1) Long operating life: Titanium metal water heat exchanger, which resists the erosionfrom chlorine in the water, creates a longer lifespan. 2) Economical and high-efficiency: Using heat pump technology, compared with otherordinary hot water equipment (for example, combustion oil boilers, combustiongas boilers, electronic boilers and so on), it reduces operating costs 65-80%. Inaddition it creates very little pollution. 3) Bright design, easy installation and replacement: Unit design separately for mainmodel and water unit model, with water unit inside, avoiding freezing in thewinter. This unit is remarkably compact, with pump and flow switch inside.4) Advanced controlling: It is extremely easy to control. The swimming pool heatpump unit is in the room, because of the mini-computer intelligent controlling andLCD display controller. 5) Safety: Water and electricity are insulated, no open fire, no creepage. 6) Quiet: Using the high-efficiency, low sound rotary or scroll compressor, low noisefan, high quality pump, creates an extremely quiet machine. producing area:china