Thermal balancing - Initial values taken for adjustment

Hello, I have now started working on the documentation to find out what the temperatures are like in our house. Attached is a link with a table. What do you think about the data? They have remained almost the same with relatively consistent weather. I am actually quite satisfied with the data. I have not made any changes after the hydraulic balancing yet.

It should be cooler in the bedroom on the upper floor. Can I simply reduce the flow rate there? Is there anything else that needs to be considered, since we have very short loops (from 16 meters :/)?

In the last four days, we have ventilated relatively little because we have a central ventilation system. As a result, there has naturally been no significant change in the values. Should I continue the documentation and ventilate more and differently over the next few days to test how the rooms heat up? The heating curve is currently set to 2 out of 10. Is an adjustment necessary here? [Linkbezeichnung]

Personally, I find it at least 3 degrees too cold. In the bathroom even 5...

Yes, it would also be too cold for us. If you want it even colder in the bedroom, reduce the flow there.

Family Frost? I hope this is not just a quirk of yours or general thriftiness, but that your whole family is like that.

I can only say Brrrrr to that as well, but to each their own. And I would bet any bet that the values are not actually so smooth and fluctuate constantly. However, this is usually only visible through continuous monitoring. Random measurements rarely show the true picture. But just so much for the record.

Hm, we have never noticed anything negative regarding the temperatures. It was all identical in the previous apartment.

: I took the measurements at the same time of day, in the same place, with different thermometers (changing the thermometers). I can't get it any more precise.

Sure, I can increase the flow now. But I want to set the heating optimally. Does it make sense to change other parameters therefore?

: Don’t tell me you have more than 20 degrees in the bedroom too. Holy crap