This device type is based on the great work done by Alyc100 for the Hive Active Heating device type. British Gas recently updated their existing ‘myHome’ boiler controls to use the new Hive web-interface.
Even though you can access your myHome boiler controls through the same hive interface as the newer Hive v1 and Hive v2 thermostats, the backend API is very different.
Below is the custom device type which will allow you to connect your British Gas myHome smart thermostat to SmartThings. Enjoy.
I hope this is of help to you!