I was just sent the API documentation from the Beok thermostat. It consists of TCP packages sent to their servers. Sadly I don’t know what thermostat ID they are speaking of in their documents. I will add the download link to my post. Maybe someone else can help.
https://mega.nz/#!Op5yBbjD!uh3_5yhPTzrpgpfhvkez3Mwbg5hAyOF2K5N-PU0lfyI