The pre-2022 versions of the Designer TT do not have a temperature offset setting.
The new 2022 version does come with a temperature compensation setting, to allow you to correct for the radiator measuring an unrepresentative temperature. A guide demonstrating how to access and change this is attached.
The new 2022 version does come with a temperature compensation setting, to allow you to correct for the radiator measuring an unrepresentative temperature. A guide demonstrating how to access and change this is attached.