Also in a lot of cases (cool climate, electric resistance heat, water heater inside conditioned space) that heat isn't really lost, it's just offsetting heat that would have come from something like an electric baseboard heater.
Re:Halfbakery
by RandallBrown on Friday November 10, 2017 @01:30PM
(#15671852)
I had a bad water heater in my apartment that kept turning off. It would take me 2 or 3 days to notice that there wasn't any hot water because I could usually get a few hot showers out of it before I noticed a problem.
I once turned off my water heater before leaving on vacation, and when I got back after a week the water in the tank was still probably 10 to 15 degrees F warmer than room temperature.