Winter doesn’t have to mean the end of the swimming season . There are various heating options available so you can still enjoy your pool and spa throughout the year.
There are three basic types of swimming pool heating systems: solar, gas and electric heat pumps. The best system is determined by numerous factors including needs, desires, budget and the physical location of the pool and house.
Your location in Australia will also play a significant role in this decision, as our varying weather patterns and different energy pricing structures by state influence the overall equation.
Today we will discuss Solar pool heating
Solar pool heating is extremely popular because of its obvious advantage of using free energy produced by the sun.
Solar heating systems work by direct heat transfer. The water from your pool is circulated through the collector, which is usually located on a roof. Most systems utilise a digital controller, which sends water to the roof whenever there’s sufficient sunshine, provided the pool is not already at the desired temperature.
Solar heating is perfect for those recreational pool owners looking for a heating system that has minimal operating costs and which provides a warm pool when people most want to swim; that is, on fine summer days. After the initial installation cost, the only additional expense is the operation of the booster pump (which most manufacturers recommend). Because of its reliance on weather conditions, the solar system will provide a consistent temperature in summer and a variable temperature rise at the edges of the season in late spring and early autumn.
When considering the installation of a solar heating, the all-important factors are the collector area proposed, collector design and quality of material. There’s only a fixed rate at which the sun will provide energy, so the larger the collector the more heat will be gained. As a general rule, the collector should be equal to at least 80 per cent of the area of the pool, although 100 per cent coverage would be more typical. Results improve as the collector size is increased.
Other points that are important when considering solar are the pitch and directional aspect of the roof; that is, which way it faces. A roof facing north is most favourable because it will receive the maximum amount of sunlight. Any shading of the roof by large trees will also be considered. The location of the pool and how much it is affected by shade and wind are also important.