Solar pool heating is fundamentally simple. Water is pumped from your pool through a solar collector – basically either a series of rubber tubes (strip solar systems) or solar panels – which are usually mounted onto the roof of your house. As the water runs through the solar collector it becomes heated by the sun. The heated water then flows back through a series of pipes into your pool.
The solar heating system can be controlled either manually or automatically. Most systems function via a digital controller which automatically directs water to the roof when there is both sufficient sunshine and the pool temperature requires it. And, yes, it even works on cloudy days – though, to be fair, with a reduced effect.
To buy and install a solar pool heating system generally costs between around $3,000 and $5,000. Of course, the cost of the system is directly proportionate to the size of your pool. Depending on the size of your pool and the sophisticated of the system, systems range in price from around $1,000 to a little shy of $5,000. Installation costs range from between $600 to around $2,500. In general, though, for a typical 8m x 4m pool, the system is likely to cost around $2,500 and the installation another $1,250 – $1,350 – making for a fully installed cost of around $3,800.