Yes, good point. However, there are a total of 4 distribution boxes in the entire house with a total of 16 circuits. If I increase one by 0.5 liters/min, the overall change is so small that it should have only a minimal impact on the differential temperature. Or am I missing something?
You seem to know better than all the installers who have been here so far. Thank you! The supply temperature is roughly the same for all heating circuits. If I now increase the flow rate in one heating circuit until the return flow is as warm as in the other circuits, I have the same temperature spread in the problem circuit as in the other circuits. Why can that then be a problem? Thanks for the info!
What spread do you have in the other circuits? And how about a little more information? Which heating system, photos of the setup, which pumps? Which room is the problem room? What does the design of the underfloor heating look like? Pipe spacing? Diameter?
About 7 degrees, Junker/Bosch air heat pump 15kw, pump I believe is called Grundvoss3, in the problem room the hose is longer because of more surface area, the rest I unfortunately don’t know. The house is new