Solar Water Heater from scratch

Five years ago when I moved to Sonora (the most sunny state in Mexico) I decided to build a solar water heater (SWH) and save money and CO2 on fossil energy. It took me 6 months to figure out which system to choose according to the local climate, to size the collector and the tank and to design the 3D taking into account the material available locally. I built it on my free time and 2 months later I had it installed and producing year-round crazy-hot water for the whole family! Since then it never stopped heating water without problem, saving tons of $$ and CO2! At that time I documented almost every step in the conception and construction process. I’m writing this Instructable so anyone can built one on his own, adding some enhancements based on experience of those 5 years of use.”


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