First really nippy day of the year.
Well, this morning.
Now, with the sun... glorious.
Missus well happy at the 7am central heating kick-of and blissfully unaware that it goes off at 9am until 5pm, when it kicks in again until bedtime.
I noticed, at around 10am. Hence the jummy.
Thing is, am I doing the right thing?
As with the immerser, is it better to have it on all day, albeit 'ticking' over, or have two bursts to top and tail the day?
What is best for the overall thermal performance of a thick stone-walled building?
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