Vaillant Arotherm Owners Thread

First overnight DHW cycle since adjusting the offset to 2K (as our eddi’s been keeping it hot).

The Vaillant tank temp readings are a little less jumpy than the previous graph I shared but there’s still the curious plateau around half-way through.

The flow temp still peaked at almost 60C though which suggests, as others have previously mentioned, that the offset isn’t doing what we would wish.