I have created a configuration for an Adax WiFi thermostat, board version 5.2a. It uses an ESP32-WROOM-32D module, and the board has test pads for easy programming. I have these thermostats in Adax Neo radiators, but I think they can be used in other models too.
These boards do not measure current, so I have implemented an energy consumption estimation based on the radiator’s power. Also, I don’t know what type of NTC these radiators use, so the type is currently just a “guesstimate” 
(any help on identifying the type would be appreciated).
Just posting here in case someone is interested. If there is interest, I can make some kind of documentation awailable.