Set the heating correctly

yes, I have that much too...

Hello,

how quickly the room cools down depends, as Mycraft pointed out, on the temperature difference between inside and outside.

Due to varying proportions of reference surfaces to heated rooms, unheated rooms, and exterior walls (e.g., bathroom in the corner of the house) and different room temperatures, rooms can of course also cool down at different rates.

Best regards, Erik from moderne.Heizung

I looked at the heating circuit distributors today and noticed that the flow rate is set the same for each circuit, meaning fully open, so it is probably clear that no hydraulic balancing has been done, right?

that the flow rate is set the same for each circuit, meaning fully open, then it is probably clear that no hydraulic balancing has been done, right?

It is very likely that this assumption is correct.

Then the heating engineer will now receive a letter with a deadline.

So after I sent the heating engineer a letter, he was here today and "fixed" all the defects. He supposedly finished the hydraulic balancing after about 20 minutes, so you don't have to be a professional to know that this can't be done in such a short time, especially not with 18 heating circuits. How is a hydraulic balancing actually done professionally? Normally, don't you need measuring devices for that?

Edit: all heating circuits show a flow rate of 1 liter, so he didn't do anything. He wants to send me the protocol in the next few days.