Need Advice - Not a Novice

[Ima saver]

I use to do it with the breaker when I lived in florida. Now, my husband installs a switch inside the kitchen in every house he builds. You can just flip the switch to turn off the hot water heater.
Do not do this with gas water heaters!

[My English Castle]

tankless water heaters?

Anyone in the US have a tankless water heater?

They just seem to be appearing in newer homes in our area. Of course my British husband says Americans are way behind Europe with tankless water heating (sigh), but I agree that it's gotta be a waste to heat all that water when you don't need it.