Make a window sensor that turn the heating off (the open window detection doesn't work so well)
Make a little window sensor as an option that could be installed at a window and connected with one or more Tado thermostats, so that one or more thermostats totally close the heat, when the window is open.
The present open window detection closes if it feels colder air, but it works very badly because it often turns heat off at wrong times and turns on again, when the window still is open. For example, if there is sun in the room and the sun ends suddenly, the thermostats think that it's because of an open window and it closes the heat though the temperature in the room is lower than selected.And after 15 minutes, the heat turns on again, but if I close the window after 30-60 minutes or close the window already after 30 seconds, it's not appropriate that the heat start after precisely 15 minutes.
This window sensor should be able to set up with a little delay, so for example when the window is closed again, it should wait maybe 10 to 20 minutes before it turns on the heat again (the user should select this for every window sensor individually in the app).