Swimming pool solar heating is an effective option to keep many pools warm throughout the year. It relies on heating water through a sequence of solar panels which are exposed to daylight to absorb heat. It isn’t based primarily on photoelectric cells, which generate electrical energy from daylight like in many solar powered items. Instead, it’s a more direct conversion of the heat in sunlight into heat in the water.
The water is fed through the solar cells by the swimming pool pump. The solar panels can be installed on a nearby roof, or they can be installed next to the pool and pump in a bracket. The roof level panels are out of the way and don’t take up key space in your garden, but the water may need a booster pump to help it battle against gravity on the way up through the system.
Either way, you’ll need to angle your solar energy panels so that they get the best sunlight for your latitude. Doing this will mean that you can still get the most efficient assimilation of heat in the coldest months of the year when you want the energy most of all.
But what happens on the hotter days of summer? Does the water continue to heat up until the pool becomes uncomfortable or even dangerously hot? No, the solar heating system has a thermostatic controller, which makes sure the temperature of the pool water doesn’t go beyond a designated level.
In the depths of winter, solar heaters will stop a pool water from freezing, but to get nicely warm water you may need to help your solar energy panels with a more conventional heater such as a gas powered heater. However, the solar powered system would pay for itself because it’s running costs are so much cheaper than a gas heater, which would only need to be used now and then.
Whichever route you decide to use to heat your pool, you must get a pool cover and use it to keep heat in when the pool is not in use. The bulk of the heat that is lost from the swimming pool system is lost from the water itself. Using a cover to preserve the heat can halve your heating bills!