For real. Everytime I get in the shower I end up having to point the showerhead away and cower from the cold water and I could have just turned it on first?
this post was submitted on 19 Jun 2025
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That sounds like a great way to waste energy.
Sorry, you've met wealthy people, right...?
It's just dumb engineering to heat up a pipe the entire day for the 0.8% of the day you need it to be hot.
It’s typically used for large complexes like campuses where the hot water is made en masse in one building and the loop goes around all the other buildings. Helps keep cost down (at construction) because you only need one giant water heater. Helps not have to wait 10 minutes to bring the hot water to your building. Energy still gets wasted but given the number of users, not that bad.