Heating (normally through the use of a Heat Pump) is becoming more popular year by year. While most people wish to simply extend their swimming season (able to use a smaller sized Heat Pump), others want to be able to swim all year round (normally requires larger Heat Pump & a Pool Cover). It does however obviously add to your costs if you are building a new pool, with many people opting to use their pool for 12 months to see if they really need to heat it. With the use of a controller, it is very simple to add the heating system (just make sure your Builder leaves enough space at the Filtration Area) at a later date.