In Portugal, an unheated swimming pool is used for 3 to 4 months a year. With heating, it's used for 9 to 10 months. For a buyer (especially from Northern Europe), a "Heated Pool" is worth twice as much as a simple pool.

The Efficiency of the Inverter Heat Pump: We don't use electric resistances (they consume a fortune). We value the installation of Inverter Heat Pumps.

COP (Coefficient of Performance): We explain that for every 1kW of electricity consumed, the machine returns 10kW of heat to the water.

The Secret of the Cover: A heating system without a thermal cover (bubble or polycarbonate) is a waste of money, as 80% of the heat is lost through evaporation at night.