I am currently in the process of selecting a new heating pump for my house.
I was offered a Viessmann Vitocal 200-S. Now I’m trying to find out if it would be compatible with OH3. They offered a “Vitoconnect OPTO2” module that connects it to the local wifi. The normal use case would be to use their ViCare-App and have the heating system always connected to the internet. I found openHAB bindings that communicate with their cloud server and many topics about that.
However, I don’t want to have the heating system always online - for security, reliability and dependency reasons.
My findings regarding this topic are rather confusing, so please excuse me seeking help in this topic with such basic questions, but I really hope that someone is already in this position and can shed some light on this topic.
- The “offline” binding for Viessmann heating systems is apparently this:
Vitotronic - Bindings | openHAB
Is that correct?
- The second component seems to be “optolink”, but it hasn’t been updated for 5 years now. Is this still a fully functional solution?
GitHub - steand/optolink: optolink adapter to vitotronic for openhab2
- Am I correct in assuming that I still need the “Vitoconnect OPTO2” component, that I connect to the heating system via their V-cable and to the local network via wifi? I would then cut its internet connection through my router. Will it still work and communicate offline with the software components from 1. and 2.?
- Are there any limitations or problems with this approach? I’m confused, because this seems to be the only logical use case as most openHAB users assumingly prefer solutions without cloud-dependencies. But in this case, I found more about the cloud-based binding rather then this offline binding.
It is really important to me to clarify all this, because I don’t want to buy something so expensive just to find out that I cannot use it without limitations or at all in OH3.
Thank you very much!