Floor plan single-family house city villa approx. 240m² without basement

That’s why I pointed out the nonsense. You can do all that Off Limits, but your design is not budget-efficient in many places. And no, the heating of the children's room from the flue gas temperature will not be measurable. But I’m going to bow out now as well: secondly, because you’re beating around the bush about the architect issue, and firstly, because I see the story of the endless loop as too similar to the pattern of Princess . I’ll gladly check back in the house pictures thread in 2025 to see if you’ve gotten anywhere by then ;-)