This is the absolute worst response.
The only correct one should be: "we are a premium brand, this should have been better from the start. We will fix this asap".
At least in my area you are the most expensive brand on every level. Claiming state-of-the-art systems and efficiency. This is a literal quote from the Viessmann website:
"The best way to enjoy ViCare is in combination with a Viessmann heating system because this simplifies hydraulic coordination between the different components. The switching times and temperatures from the different rooms are collected and forwarded to the controller, significantly optimizing heating regulation and making the whole process much more efficient."
In reality the Vitodens and Vicare Smart Climate systems are broken in many many ways. Off which the topic discussed here is just the tip off the iceberg.
In addition to the premium cost customers are paying, you have climate change and exponentially rising energy prices. Yet the gas and electricity usage of your systems are absurdly inefficient.
Every engineer I know would be ashamed to release this on to the market. As should you.
