Is a thermostat the most misunderstood and abused device ever made available to the wider population?
I wonder what proportion of TRVs are always set at "5"? How many room thermostats are only ever at 16 - or 28?
At work, people would go into a conference room, turn on the air conditioninng. In winter they would turn it to 28. In winter they would turn it to 16. When the room got uncomfortable the setting would be moved to the opposite setting.
I am proud I have got my wife out of the habit of putting the oven thermostat on 215 to get the oven warm.