Lower Temperature, Lower Costs
You can expand the swimming season by the use of a pool heater, gas or electric. However, for every degree rise you dial-up, the cost in energy will be significant. Swimming in a bath is an idea that is nice, but you can swim just as enjoyably in a cooler pool, and save money in the process. If you really want to save money, look to install a solar collector system as a stand-alone or adjunct to your established pool heater. It can preheat the water and save energy.
Of course, when the pool is not in use, turn it down and use a pool blanket – cover to retain the heat generated.
