Heating your outdoor swimming pool with a solar pool heating system is a simple way to lower your energy bills and keep your pool warm enough to swim all at the same time. Solar pool heating systems are easy to install and will last for years providing you with free solar hot water. Just like the home solar heating systems, they can turn the immense energy from the sun into something useful. A solar pool heating system is a very simple heating system to install and operate, all you need is a solar panel and a few pipe. A typical solar pool heating system can provide sufficient heat for a garden pool of any size and shape as long as you have enough flat panel solar collectors in your system.


A flat panel solar pool heater really comes into its own in the spring and autumn months when the mornings and evenings are too cool for normal pool usage. By installing a solar pool heating system, the use of a normal swimming pool can be increased by up to four months a year just by using the heat energy from the sun. The type of solar pool heating system will vary for each pool design, location and available sunlight but the basic principal remains the same.

Before, to heat the water in an outdoor pool or spa you needed to use either an electrical heater, a gas heater, normally a propane heater or conserve the heat already in the pool by using a swimming pool cover. Today, things have changed and we can easily use the energy of the sun to heat the water using a solar pool heating system.

Comfortable swimming pool water temperature is relatively low compared to other uses of hot water such as baths and showers. Flat panel solar collectors are most efficient at low temperatures and are therefore well suited for pool heating where a large volume of water has to be heated to just a few degrees above the ambient temperature rather than to heat a smaller quantity to a much higher temperature. A properly sized solar heating system can gently raise the pool temperature by at least 5 to 10 degC (10 – 20 degF) above the normal water temperature maintaining a comfortable swimming temperature each time the water passes through the solar collector.