Solar heating uses a series of tubes or passages that have pool or spa water circulating through them. The tubes or passages are placed either poolside or located on the roof of the home. This will give the solar panels time to absorb the heat provided by the sun, transferring that heat to the water running through the tubes or solar panel passages. Solar heating is the most basic way of heating your pool so it makes pool heating available to all inground or above ground pool owners. Here at PoolSupplyWorld, we offer all the most reliable and popular manufacturers and brands. If you have any questions or concerns please feel free to contact us at 1-800-772-0467 or chat with us online at www.poolsupplyworld.com.