The idea of heating water with the power of the sun is as old as … the Earth! But capturing that energy to efficiently heat water for domestic use is a more recent innovation. You can purchase and install manufactured solar hot water systems or build one yourself. Beginning in 2010, all new-house construction in Hawaii will be required to have solar water heaters.
Rather than a whole-house system, you can erect a simple outdoor, solar-heated shower.
MOTHER EARTH NEWS readers have been inventing ways to produce solar-heated water for decades. Have you built a solar water heater? If so, in the comments section below, tell us about it and how well it performed.
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