Keeping your pool heated dos not necessarily need to include increasing your utility bills by much, if at all. If you stay in an area that has a good amount of sun, use solar pool items that use power from the sunshine to warm the water in your swimming pool. Regardless of what kind of pool you have and where you live there is a heater that will be compatible with yours. pool heaters with a variety of prices use different power sources, including solar and natural gas.