Gguckuck2 2020-01-25 18:03:39#1Why 2-degree cold air? It is preheated by the heat recovery, see for example the contribution from curly
Why 2-degree cold air? It is preheated by the heat recovery, see for example the contribution from curly
Gguckuck2 2020-01-25 18:11:29#3Oh, I see. Yes, that's how it is. You don't feel a draft at air exchange rates of 0.3-0.4.