Dear Jim: I want to extend the swimming season several months by heating our pool water, but I don't want to use so much energy needlessly. Are solar systems effective for pools and what type is best?

Diablo Solar Servies specializes in residential solar and solar pool heating. It offers equipment from Enphase Energy, FAFCO, LG Electronics, Qcells, SMA, SolarEdge, Suniva, SunPower and UMA Solar.