What flow temperatures are you currently running?

This morning it was everywhere 20.5°C to 21°C, although that is not significant since it was too warm yesterday and the heating only turned on in the evening (shut-off temperature 12°C)

Heating curve 0.1 is certainly a bit tight, based on the max. 30°C at -11~-12°C
It should rather be the 0.15 curve

I envy you, I have to throttle all circuits except for the bathroom and guest WC, otherwise these two rooms do not really get warm and all other rooms become too warm. If I lower the heating curve, the two rooms will not get warm enough even with full flow.

I have to throttle all circles except for the bathroom and guest WC, otherwise these two rooms do not really get warm

It is normal that the bathroom has the highest flow rate and as long as the heat pump is allowed to handle the required volume flow, that is not a problem. 2.5 and the rest each 0.3 would of course be suboptimal.

Bathroom and guest WC 3l/min Children’s room and office each 1l/min Living room with 3 heating circuits each 0.7l/min and kitchen with 2 heating circuits each 1l/min Hallway ground floor and hallway upper floor also each 1 l/min Dressing room and bedroom 0.3

Heating curve is by the way at 0.3 and differential at 1

Heating curve is by the way at 0.3 and spread at 1

"Cabin" from 2017, so 0.3 is of course clearly too high. And where is the room setpoint? Spread between flow and return 1 K? :rolleyes: