Wall heaters do not reach the desired temperature

I run heating curve 0.4 in our house so that the bathroom reaches 23°C. But we don't have wall heating. Shift 0 Comfort setpoint 23°C. If I increase the comfort setpoint to 25°C, a heating curve of 0.26 is sufficient. Flow temperature at about 1-2 degrees just nearly 30°C. 128sqm house according to [Energieeinsparverordnung 2016].

I run a heating curve of 0.4 in our house so that it becomes 23°C in the bathroom. But we don’t have wall heating. Shift 0 Comfort setpoint 23°C
If I increase the comfort setpoint to 25°C, a heating curve of 0.26 is sufficient
Flow temperature at about 1-2 degrees just under 30°C
128 sqm house according to Energy Saving Ordinance 2016

Super thanks to you. Those are similar values. I’m currently testing if the bathroom has the right valve, afterwards I would test your values.

I run a heating curve of 0.4 in our house so that it reaches 23°C in the bathroom. However, we don't have wall heating. Offset 0 Comfort setpoint 23°C When I increase the comfort setpoint to 25°C, a heating curve of 0.26 is sufficient Supply temperature at about 1-2 degrees is just under 30°C 128 sqm house according to the 2016 Energy Saving Ordinance

What is the difference between comfort setpoint and parallel offset?

Sorry, but 0.4 in new construction is beyond bad! You have also been fiddling with the heating for weeks. Everything from 0.1 to 0.3 has already been tried. And now even 0.4. :oops:

The feedback from the HB was that I should increase the room setpoint temperature by 1 degree.

But the design was not calculated that way.

Sorry, but 0.4 in a new building is beyond good and evil! You have also been fiddling with the heating for weeks. Everything from 0.1 to 0.3 has already happened. And now even 0.4. :oops:

Well, it does depend somewhat on the circumstances. The Energy Saving Ordinance is not KfW40. I also have the Energy Saving Ordinance and 0.35 at 21.5 room setpoint. And that doesn't plunge me into ruin now. But I also have a basement with thermal bridges in the thermal envelope that I am currently not heating, etc.

Show pictures of the valves including the flow indicator.