Britony combi se boiler

[Rachie30]

Hi
I've just moved into a new house with a britony combi se boiler I want to set the temperature for the heating to 20c but it doesnt have temperatures it just says around the dial mini then 4 points then the 5th it says maxi so can anyone help me to put it on the right mark so it's at 20c
Thank you
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[Agile]

To set the rooms to 20 C you need a room stat.

The boiler control is only for how hot the rads get. Normally set that at about 2/3 of the maximum.

Can you ask the seller how they used to set it?

Tony