Hi all,
Does anybody have experience with connecting a heat pump from Viessmann to openhab? Is it possible?
For me it could be an option via KNX, but I would like to avoid byuing the Vitogate for 800€ (if I am not mistaken).
What about the Vitotronic binding? (heat pumps not mentioned there).
Many thanks in advance for any kind of help 
BR,
Tomas
Don’t know much about heat pumps but some viessman products had a while ago something called optolink service connector. You can check if out product has one. In that case you would spent about 20eu to buy some electronic parts and esp32/8266 and intergrate by yourself through this connector.
I have done it with my Viessmann Vitodens 200-W
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