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btw, what's the "cocktail" setting for?! there's a party-mode for the thermostat?

Hehe, yeah, it's the mode for 'staying up late' and letting it heat the house longer. Apparently Viesmann associates that with cocktailparties. I guess that's how they do it at their offices... The other is the Piggy-bank-setting, for freezing your ass off while you put the saved money in the bank. With which you can pay for their ultra-high-end-expensivo heating system I guess...
Nah, j/k, we're really happy with it :P