Questions about underfloor heating with geothermal energy

The shower was not yet operational. There are two thermometers in the room, which show a max. difference of 0.2.

Regarding the heating curve itself, here you can adjust both the slope and the starting point of the heating curve. I cannot say what the values are, as I am not at home right now.

Call your heating technician, explain the situation to him, and ask if he would like to come over for a piece of cake. It seems to me that the terminology is not clear to you. The 35 degrees will be the flow temperature, not the RT. You were surely instructed on the heating system, weren't you? If not: What does the manual say?

I refer to my entered data on page 1. It says here that space equals 35°. My excellent briefing was given in such a way that the individual menu items were explained to me. In the large construction project, it was only said that the [Sanitär Firma] only installs the systems but cannot adjust them. Ridiculous.

Point 1: You should be aware that the underfloor heating is rather slow. The settings on the thermostat take their time. Point 2: Was a hydraulic balancing done during the installation? Point 3: I would first ignore the degree numbers on the individual room thermostats and see if the system can achieve the desired room temperature at all. If that fits, you can certainly adjust the heating curve so that the degree numbers also match the actual temperature. Google "Einstellungen Heizkurve".

1. Temperature up by 18 degrees since last night

2. yes

3. that's the point. We don't even get the desired 20. If I could reach my 20° with the thermostats turned up all the way, I would be happy.