Underfloor heating, laminate, or tiles: which is warmer for the feet?

nordlys, the hydraulic balancing already existed in the last millennium ;)

it is usually not adjusted anywhere: All radiators I know were left at max. flow and that's it.

But if you live in the top apartment (like we do at the moment), you can't just ring the doorbell for the people on the ground floor and ask them to reduce their radiators. This leads to the fact that in the morning, when everyone in the building wants to heat their rooms that have cooled down overnight, there is hardly any flow left at the top of the house...

Oh, could it be because of that? We also currently live in the attic (older ladies live below us) and although we have most radiators set to 5, it hardly gets warm and in the morning it takes at least until 10 o’clock until I consider it “no longer cold”

There is also the problem that every heating system has a hot water prioritization, i.e. when everyone in the house is showering in the morning, the heating system first takes care of reheating the hot water tank, then only later does the heating turn on again.

Then, as mentioned, the hydraulic balancing is not set, so the main flow occurs in the heating circuits with the least resistance, and those are not the ones on the upper floor.

The solution for you would be to start heating before everyone else, i.e. leave all radiators set to 3 overnight, as soon as the heating switches from night to day in the early morning hours, sufficient flow will then reach you. As I said: before everyone else turns up their heating and the big showering starts.