Gas pedal and parking brake of the heater: Explanation correct?

Mail is sent tolentino

Thank you . Unfortunately, I wrote nonsense. It is "nikolausv", the rest remains the same. Sorry for the confusion.

Ok I'll send the email again

I still have one question.

I have now set almost all the room controllers to 23 degrees and the central controller on the system to a desired temperature of 17 degrees. Nevertheless, the system still manages to heat the temperature in the rooms up to 23 degrees. I actually don't want more than 21 degrees. So I have to turn down the desired temperature on the central controller even further, right? At some point, the outgoing water temperature from the system should no longer be sufficient. At least I would expect that.

As long as you go down until you feel cold, first turn all the valves fully off, not just to 25 degrees. If the desired temperature in the utility room does not work, you need to read up on the thermal balancing and deal with the adjustment of the heating curve.

Oh ok. So I can set the individual room controllers to a maximum of 35 degrees. Then do that everywhere and continue to lower the temperature on the central control element until the desired temperature is reached.

And only apply the "handbrake" in rooms (e.g. bedroom) where I want less than 21 degrees.

Still, I wonder how 23 degrees are reached in the rooms when I only set a desired temperature of 17 degrees downstairs. The heating curve must be totally weird. Or I am not considering the heat generated by people/devices and the insulation of the house in my calculation.