Roth heat pump single-family house setting / optimization

that I cannot make it warmer by adjusting the heating curve. Could I then increase the flow rate at the manifold for the bathroom?

By adjusting the heating curve upwards, the bathroom will definitely get warmer. Warning: The rest of the house will also get warmer. —> throttle.

Increasing the flow rate only works up to a certain point. If the heating circuit in the bathroom, for example, is significantly shorter than others, there is a risk of a "thermal short circuit." The warm water is practically directed straight back to the return flow, causing the heat pump to think there is no more heat demand and thus switch off. However, the rooms remain "cold." Shortly thereafter, it switches on again —> risk of short cycling.

Ok thanks for your answers. I think I'll stay away from the flow for now, especially since the temperature in the bathroom is still okay for me… In the children's rooms upstairs it is also 22 degrees which works for me, only my wife thinks it is cold or feels cold. But since hardly anyone is in the rooms during the day, it is also okay for the moment. So overall the temperatures in the house are currently fine. Sometimes the hot water is not really hot, but that hasn’t bothered me personally yet or I haven't noticed it because I am still tinkering a bit with it. Currently it is set to 48 degrees and 4 HR.

How do you measure the temperature in the rooms?

how do you measure the temperature in the rooms?

I have a wireless weather station with individual sensors…no idea how accurate they are

On Monday, 29.11.2021, an employee from Roth is coming to me to answer my questions... let's see what he says about the Thermotank and how he talks the thing up positively

What does he have to say anyway. The one who pays calls the tune and he gets his salary from the employer... Just ask him why people believe that an 800l tank can store more energy than the screed and why the hydraulics are not planned so that the heat pump heats directly into the underfloor heating/screed...