Can I combine a solar water heating, pool heating and space heating system?


Yes. Using the solar system to supply heat to several loads, available at different times of the year, is a smart way of improving the productivity of the solar system - as well as significantly improving its return on investment.

Combined systems are more complex and must be built to meet the most severe conditions any of the different applications could present. For example, the solar collectors normally used for outdoor swimming pools are unglazed and plastic. This type of solar collector will not collect heat in the winter and must be replaced with a glazed metal solar collector. Glazed metal collectors should not have residential pool water circulated through them. Because of this a heat transfer fluid loop, using antifreeze and a heat exchanger will have to be incorporated. This is okay because it facilitates providing heat to the other loads - the hot water and the space heating system.