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?
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?
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.
Heat pumps generally use a lot less power. Don’t need to heat up much if it is already slightly 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.
Insulation + retaining heat means it isn’t nearly as energy inefficient as you think.
They keep the water tanks heated all day, and not heating the pipes means they have to do more work as they are drained of more water to fill the length of pipe to the shower which will then lose that heat over the course the day, only to need the water heater to heat it back up again.
You don’t have to heat it up all day. Did you just post the first “anti” thought you had without giving one minute of consideration to how modern controls work?
Have you read the previous comments? Because that’s exactly what’s implied.