That’s still confusing to me. My parents had the water heater tank in the bathroom, between the shower/bath and the sink. The kitchen sink had a separate small water heater.
It’s really a question of whether you have electric heating or a furnace or district heating.
It’s not common to have more than one heat exchanger for hot water if you have a furnace or district heating.
Electrical is much easier. You can just place them anywhere and they don’t cost as much to install. However, electricity is usually more expensive than district heating.
I once had a place with the separate small water heater for kitchen. Could barely get the dishes done. I prefer having to wait a minute for the bathroom gigantic tank water to make it to the kitchen. Actually my system is way more complex, but that’s irrelevant for this discussion. I have 3 big tanks, two of which are powered by wood (so usually cold unless it’s cold outside and I make fires). By turning some valves on or off I can get water from different tanks to different faucets, though not all combinations are possible. Perks of a 40 year old house that grandpa later made more improvements on, lol
pillowtags@lemmy.dbzer0.com 1 week ago
Most houses in the US have a single water heater, usually in the basement or utility room, with pipes running all through the house.