Okofen...It's freezing in the house :(

[hercut]

Thank you for your answer.

I don't think it's from the radiators, they're only 4 years old, but hey it could. But, they're hot, so I imagine it's spinning.
Perhaps they were planned too tightly in terms of size...

Friday I put the heating on intermediate instead of eco as mode, it is a little better but I still have a good degree and a half of difference with the rest of the house.
And, above all, a feeling of freshness, at 20° I have a not very pleasant feeling of cold...

[Bengal77]

Hello,

Try to bleed the radiators, maybe there are a few bubbles that prevent proper circulation. And check the water pressure which should be at 1,5 bar mini.

[hercut]

I checked all is well in the radiators.

I increased the temperature to 22, it still seems like a lot :/
The cold room is at 21 with a feeling of cold still…

I don't understand, maybe I need to review the boiler setting and the heating time per day?