Air-to-water heat pump sizing in new construction

15 cm would have been nonsense anyway. 10 works.
But why is there a free area down on the left?

No, I already have such an overlap. I have had the heat load calculation done for it.

That is free because they only started today.

You can't layer too tightly. Better to lower the flow temperature. Then there will be no overlap.

Sure. I can't lower the flow temperature any further if it then gets too cold in the baths or the pump can no longer handle the back pressure or the volume. I assume that I simply don't need that much heat output there…

Then make it tighter in the bathroom, wall, ceiling included, accept the undercoverage and compensate with infrared... Everything. Just under no circumstances increase the flow temperature for the whole house because of the 10 sqm bathroom (or in the end even reduce the laying distance). The pump has nothing to do with the flow temperature either.

Hey, I had a complete verified heating load calculation and installation planning done. I am fully aware of all that.

This has already been thoroughly discussed in the course of this thread. My concern is how far the modified heating circuits can be throttled and how that affects the head pressure or the volume flow when it becomes critical.

The smaller 55 Arotherm, for example, would not have achieved the required volume flow for our house.

5cm :) in the bathroom, 4 circles on 15sqm. I want to see something like that :-)