Could use some help with heat loss in living room.
In my semi-detached 3-beds house, I do have the setup with Ideal Vogue Max 32 boiler which as of Dec is being connected to Tado Wireless Kit (EU-ver). I run additional 4 Tado thermostats. I got them in 2 out of 3 bedrooms, the hallway (to control and monitor heat level), and in the living room. My main wireless sensor is linked to the living room. I did the heat loss calculation and the full house got about 7.5kWh due to poor insulation and additional rad in the conservatory. The living room is about 1.5kWh. I did the calc for reaching 20dec from -2deg if that any use.
Ever since swapping for the Tado with OPENTHERM settings, I have noticed about 30% drop in kWh usage in the entire house. I tend to leave 17-18deg during the day in all rooms going to 19-20 from 16:30 close to time to be at home. I do not have a need for heating water as I do run it off the boiler. Flow temp is set to 55deg and the entire system seems to be keeping the house warm and cozy without much effort and needs for high temp.
The fact I start wondering is how come the below figures are so much off. I do realize it is just 5 days but it seems very high for one room.
I do get a living room is the one mostly used (downstairs) and the Girl's is right above it. Yet the living room seems to be using most of the heat. Or is it due to the fact that the main wall thermostat is located and linked to the same room on the system and reads the rest of the house together?
I start wondering if this is due to issues with my room radiator but I would expect it to be enough as it is the biggest of them all.
Any thoughts and ideas would be kindly appreciated.