Underfloor heating air-water heat pump. House too warm when the sun shines

Then you must have installed significantly more pipes, we stuck to the 10cm. That's probably why we have a higher flow temperature, otherwise it gets too cold in the house.

The alternative would be to increase the flow rate. 10cm isn’t so bad when you consider that some heating engineers still install 15 or even 20cm.

If necessary, you could also do a bit by reducing the hysteresis. Then there is less fluctuation in the flow temperature, but the heat pump runs more frequently. So a few more cycles again, but a more constant flow temperature. In return, lower the endpoint of the heating curve.

Just as important as the spacing, if not even more important, is the diameter. With a spacing of 10 and 14mm tubes, nothing has been achieved.

The alternative would be to increase the flow rate. 10cm is not so bad if you consider that some heating engineers still install 15 or even 20cm.

Possibly one could also do a bit by reducing the hysteresis. Then there is less fluctuation in the flow temperature, but the heat pump runs more often. So a few more cycles, but a more constant flow temperature. In return, lower the endpoint of the heating curve.

Yes, surely something can still be done, but I’m just not in the mood right now . Everything is running smoothly, maybe I’ll tackle it again next winter.

The pipes were 18mm, I checked...

Then you probably laid many more pipes, we stuck to 10cm. That's probably why we have a higher supply temperature, otherwise it's too cold in the house.

The type of flooring also has a significant impact.

Hello dear ones,
I hope everyone is healthy so far in these difficult times at the moment.

I have something strange today:
Compressor has been heating up for over 7 hours.
Can someone take a look at this? What is it?

Best regards

Restart, maybe it just froze.