No. For me and even for most heating engineers, this is a difficult topic
You can feel free to read my thread in the heating subforum
My system is actually something like the Tschitti Tschitt Bäng Bäng of heating technology!
It wasn’t meant entirely seriously either.
I think messing around with it at the moment doesn’t make much sense yet. The Stiebel technician said we should just generally write off the first year in terms of consumption because the construction is still damp. From the second year on, it will get better. I would only want to deal with the topic because I would like to create a situation where every room has the right temperature all year round without having to fiddle with the ERR or the heating.