13igTyme

We also had a smaller tankless, but we couldn’t shower and use the washing machine on hot at the same time. All tankless water heaters have a flow rate limit depending on their size.

It’s not stupid when you factor the cost. If you want do multiple things at once with hot water, you’ll need a bigger tankless. As it gets bigger and can heat more water at once, the price goes way up. Not everyone can afford that.

A tankless can also be electric.

FYI a gas heater can have a tank. I think you are referring to a “tankless” heater. They are nice, but expensive. I had one in my previous house.