Reduce hot water consumption by 40% and still have a good shower.For many years, I was wondering, how I to reduce the shower time of my children. nowadays, they have the age of 14, 16 and 18. They like to shower for, at least, 5-10 min . 8 min is the average shower time. Which costs 500 € annual...By: OlafB
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from Instructables: exploring - technology - robots http://ift.tt/1JV48an
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