I have been using Nest Learning Thermostat for years. I have a daily schedule to switch on heating at 8am at 20C
Up until a week ago, doing this meant that the Nest would turn on the heating an hour or so BEFORE 8am so that the boiler got the room up to 20C by 8am.
In the last week or so, the nest turns the boiler on at EXACTLY 8am which means I am cold at 8am.
How do I get my schedule to work as it did before?
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