I've done some research into solar heating since I am considering adding it to my pool in the next year or to to suppliment my heat pump. The sq footage of solar panels needed is dependant on the direction of exposure with a southern exposure needing about 70% of the sq footage of the surface area of your pool, western needing about 80-85%, eastern needing 100% and northern exposure not being recommended. Of course these are just general guidelines and not gospel. One source I checked even said that a SSW orientation of the panels would be the most effecient needing only 65% of your pool's surface area.Originally Posted by kaybinster
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