How much should a new gas boiler cost?

If we all forgo having children, we can also reinstall gas boilers and oil heating systems, because then we no longer have anyone to preserve the climate for. The Earth doesn't care much about all this. A few million years after we have gone extinct, it will be fine again.

We are approaching off-topic :D But no, it’s not exactly broken. We currently have 2 small petrol cars, but we don’t need 2 cars anymore. We plan to get rid of both in the medium term and buy an electric car. But right now it’s really uneconomical because we drive so little. Now we are moving closer to the family, and then the 550km route will also no longer be necessary. However, we need to change vehicles from a long-term perspective because our family car is currently an Audi A1, and my husband drives a Smart. The family car is becoming too small, we hardly ever need the Smart, but we also need an automatic transmission because my husband can’t/is not allowed to drive a manual. An electric vehicle is just a good option here.

I think when we say "large" we mean different house sizes.

I am talking about houses with 500m2 and more (large single-family houses and multi-family houses).

Why is a heat pump not so sensible there? It is very logical: Because higher flow temperatures are needed due to power losses.

As I gathered from another thread, you want to build new there. And the small footprint is gone. The new building weighs significantly more than years of commuting…

But to quickly heat a lot of water, peak power is needed. Heat pumps are not made for this.

Here, the size of the house and the amount of concrete play a big role, though.