Gregory's Server@ifixcoinops on a much smaller scale, i think about the waste heat in the water when i shower. that must be useful for something.
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4 comments
@bocs @ifixcoinops That actually exists! https://en.wikipedia.org/wiki/Water_heat_recycling  @bocs @ifixcoinops on the bigger issue: the scarcity of gray water systems makes me cry inside. Why are we using our water only once? (Subnote: "It's unsafe" is a weak answer. I live where the tap water has high amounts of other people's body-affecting medications plus a constant supply of harmful microorganisms that aren't filtered out by the water provider. Consumers are already expected to take additional safety measures for using community resources. Water wells and barrels exist, too.) |
@bocs @ifixcoinops https://www.energy.gov/energysaver/drain-water-heat-recovery
There are drain water heat exchangers available. But your money's better spent on insulation and heat pumps in most North American houses.