@Pete69
All my rooms are controlled via an app (Drayton wiser) so that when rooms are unoccupied the heating is turned of for the empty room.
Otherwise;
During the day I have it set at 20c (68f),
Boosted to 22c (71f) (5.00pm to 10.00pm)
down to 20c (68f) (10.00pm to 6.00am)
Then 24c (75f) 6.00am to 8.00am,
back to 20c (68f) until the 5.00pm boost
Seems to work OK, but found guests from hot countries arriving in the UK during winter tend to really notice the cold far more than the natives, so always ask if they are warm enough, so easy to open the App and turn up the heating by a few degrees for their room.
With this App the guests are unable to control the temp themselves. and keeps the heating at a realistic level. Of course additional blankets are always available for those whom like to have wieght.
One additional feature is that there is an automatic open window detection, so that the heating is automatically switched off in their room if they open a window and let all the heat out.
Will not be accused of heating the planet at my expense