• humanspiral@lemmy.ca
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    4 days ago

    in practice…houses already have a “regular” water connection running to them. in order for this to be practical, you’re talking about having to run plumbing for a 2nd hot water connection. to every house.

    many places, get their heating from such a 2nd pipe carrying NG to their house. While water needs a bigger pipe, it is low pressure, and can be thinner using less metal (or plastic) overall.