Dear Jim, we have a large family and we use a lot of hot water. I can’t afford to install a solar water heating system, but I want to make some kind of solar water heater myself. What do you suggest? – Michael F.
Dear Michael: Heating your hot water is an excellent application for solar energy. In contrast to solar room heating, hot water preparation is required all year round. This offers a good payback, especially if you are building it yourself and only need to cover the cost of materials.
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