It is a question of resistance (pipe length, diameter, bending radii-installation distance). Heating water also takes the path of least resistance. As I said, I got even more flow by closing the bypass valve.
But can I simply close the bypass valve, even if the individual room controllers are not removed?
I have now consumed 30 kWh per day for the last two days, which is of course extremely high.
But that was probably also because our house became extremely warm.
What do you think, how will the kilowatt-hour consumption develop now? Should I see improvement already tomorrow?