Harvesting energy with home made solar thermal collector

Nearest star from Earth is Sun. And it emits a massive amount of energy which is free. No surprise many people try to get most of it with minimal cost. Photovoltaic solar panels still have low efficiency and yet are quite expensive. Every day we hear how their effectiveness is increased by introducing new technologies. Anyway, solar panels require direct Sun which in some regions doesn’t appear very often. So how we can get this energy with almost no initial cost? The easiest way to do so is to build a solar thermal collector. You can find lots of high efficient commercial collectors. They look great and at some level works in the winter time when Sun shines. I decided to go simpler. I need hot water only in spring, summer, and fall. In the winter time, I burn wood to heat the house and so water. In the summertime, I usually boiled water using an electric boiler which generates nice bills at the end of the month. No more… So I started this project which is still in testing phase. But seems to work fine. Lets go through build process how I made a simple solar collector using old…

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