Similar to an older feature request (source: Viessmann gas heating)
I also have a Viessmann Vitodens Gas Heater which is connected to the Viessmann cloud through their Vitoconnect 100 module.
Viessmann offers an app called ViCare that allows me to control my heater using an account
A few weeks ago I discovered Home Assistant and in my search to automate as much as possible I wanted to include my gas heater, but sadly no component exists… yet.
I started doing some research and found a French home automation forum called JEEDOM with following topic:
https://www.jeedom.com/forum/viewtopic.php?f=31&t=31567&start=100#p642758 from this point onwards in the topic they seem to have found a way to access their Gas Heaters.
With google translate and limited knowledge of python I managed to make a small script myself.
The script logs in to the ViessMann server, pulls out some data and sends it to a MQTT topic.
One of the authors of on the JEEDOM also has a github with A LOT more information
With this topic, I’m hoping somebody with more programming skills than myself is able to create a component for Viessmann Gas Heaters.