Extend your swimming season – The heated water will allow you to get in the pool earlier than you might normally consider. It will also give you the advantage of using the pool well past the normal season. In some areas the addition of solar pool heating can allow you to make use of the pool all year long.
Comfort - Knowing that your pool is at the perfect temperature can make the difference between a comfortable swim or a cold swim on a fall day.
Return on investment - You will find that if it comes time to sell your home, having a pool heater can make the value of the home increase. Most homes with pools usually do not have a pool heater so it is a very nice feature to advertise on a listing.