Is it possible for your app when requested by user to read current temperature from two devices? If this is true than my proposal is possible. I’m not proposing background auto calculation of an offset but user requested one. I’m having difficulty with the offset because you recommend -1.5 as a good starting point, but currently best working offset for me is +1 degree.
Another question in your experience does an offset requires tuneup in different parts of a heating season? For example should same offset be ok for heating required during periods of an outside temperatures 10 degree and -20 degree?
Oct 2, 2021