Solar h2o heating systems contain a solar collector that faces the Solar and either heats h2o right or heats a "Operating fluid" that, in turn, is accustomed to heat water. For more information on setting up a solar drinking water heating system, please see the California Solar Initiative (CSI). It https://www.americanarraysolar.com/how-to-save-more-by-installing-solar-panels-bakersfield/