Hello @amgajda
if you have a strong Wifi in your room where your Heatpump is installed and also a free socket, you only have to buy the opto 2. The benefit you have with opto2 is already listed in my first post. At this time there is no great step between functions of Vitotrol App and ViCare. But ViCare will get future functions, Vitotrol don't.
Best regards, Christoph
... Mehr anzeigen
