Condensate at ventilation outlet

Can’t you just put a normal outlet or a grille on it?

We have a double outlet here. Therefore, I would want to avoid screwing on a normal attachment. The design of the Vallox exhaust grille is intended to prevent a thermal short circuit from occurring. I do not believe that this is not a problem. Through our ventilation system, we can track how much moisture is in our house. We currently have a humidity of 35 to 55%. Of course, the phenomenon is now resolved in summer. But I don’t want to deal with the water in the pipe every winter. I do not believe that it will improve by itself. Maybe I’ll wait for the summer and keep drainage on the pipe in mind for next winter.

Just ignore Mycraft, sometimes he just can't or doesn't want to understand it :). Oh, and I didn't know about the double omission, you could have noticed that.

There is nothing to understand here either, or as you can clearly see, both of you have little knowledge of building physics and let alone ventilation systems.

That neither of you understands anything, not even yourselves, can be well traced based on the discussion here.