Comments for: Solar water device saves energy Solar water device saves energy Dear Jim: My son’s sixth-grade teacher said we can save half our water heating energy by building a simple solar water heater. Now my son is bugging me to do it. Is the teacher correct and how can we build one cheaply? – Ken N. Read More Back to story → Read more
Solar water device saves energy Dear Jim: My son’s sixth-grade teacher said we can save half our water heating energy by building a simple solar water heater. Now my son is bugging me to do it. Is the teacher correct and how can we build one cheaply? – Ken N. Read More
Comments for: Solar water device saves energy
Solar water device saves energy
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Solar water device saves energy