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konastab01-
TBH we are on a bit of a voyage of discovery with ours. I wanted openTherm originally but only after it all got fitted did we discover that Viessmann and EvoHome don't play together well....something about the protocols of the systems. So we installed the compensator a few months ago, trouble is the heating takes priority so the hot water was not getting above 35 degrees on warm days...so we've had to steepen the curve the ensure that the water gets hot enough as the outside temperature differential was not great enough. Solution is in the post from Germany (separate the hot water heating from the EvoHome). None of this was a problem until i had the weather compensator installed.....
I never expect to see the benefits of this outlay....
Cornish_Bike
Is that like Tado in that it controls the TRVs?
Also what is a Weather Comp?