I don’t know what “super expensive” is. I know what happens if the water heater erupts. I also know the cost of keeping water hot when nobody’s using it.
Oh, well, it’s something to look into when I’m living in my own house again instead of an apartment.
Trying out a new tagline...
We’ve never had an eruption, and natural gas is very cheap here.
It would seem that we are one of the very few countries in the world to use hugh water heaters that take up space and heat the room they’re in. Most other developed countries use on-demand water heaters and have for over a century.
It would seem to me that one of those would be cheaper in the long run, but only ever owning one house in my entire life, all I can go by is what I see and hear from other people, and from my experience in Germany.