Timber frame vs. passive house for/against the respective building material?

Actually, only outside air comes into the building through the ventilation system - well, possibly preheated, but that should have no impact on the humidity.

But in winter it is like that, because the moisture absorption of cold and warm air is different (cold air can absorb less water ===> comes from outside / warm and therefore also "more humid" air from the house is vented out).

: Thanks, learned something new again...

No air dryer. Even hanging laundry in the room doesn't help much. You have already received the explanation. And in summer it doesn't help either, because the children's constant opening of the terrace doors and in the evening anyway all the windows are thrown open to get the warm air out.

Whether the controlled residential ventilation is a comfort gain, I don't know. We have one, and it's useless. We have now switched it off. Why? Quite simply because we have the opposite of too humid air. Namely, too dry. And that's just as bad for the respiratory tract, especially when you have children. Constantly dry noses, constantly scratchy throats, my daughters, who have been in the house since they were babies, had almost continuous irritating cough from autumn to spring. It only got better when we switched off the ventilation.
And fresh air from outside is still better than the air from the pipes. Even when the system was running, we constantly opened some doors and windows because the air from outside is simply more pleasant - especially after rain - it also smells completely different.
We now live in a single-family house built in 2008. Now we are building solidly (without any wall insulation) and the only ventilations we will have are in the bathrooms and in the utility room - decentralized.

...then I would have tried it once with an enthalpy heat exchanger. With the right air exchange rate, air that is too dry no longer plays a role. However, I don't know which brand you have installed. But the larger manufacturers all offer such heat exchangers as well.

What did customer service say about your problems? I would be interested.

By the way, in summer we also switch off the controlled residential ventilation - except on summer nights when it is a bit cooler outside. Here you can "suck" the cooler night air inside. And in the cold season: no manual ventilation necessary. In the morning, in the general hustle and bustle (bathroom, breakfast, children, etc.), before we leave the house, no 10 minutes of cross-ventilation necessary. Also, constantly fresh air in the bedroom. Even after showering, no manual ventilation is necessary. Also, kitchen odors (not just the phrases) no longer matter. From a purely economic point of view, admittedly, controlled residential ventilation probably does not pay off.

One more question: are you building again because of this?

Best regards

Addendum: whether the fresh air directly from outside is better? Looking at the filters, I dare to doubt that Besides, allergy sufferers swear by [Kontrollierte-Wohnraumlüftung], since pollen-free air inside the house...

Best regards

1. The pollen filter is an optional extra. Normal controlled residential ventilation systems do not have one. 2. We have heat exchangers, or rather a controlled residential ventilation system with heat recovery. 3. The manufacturer is Pluggit (may I mention it here?) - so no cheap parts, everything properly installed and in order. 4. The kitchen smell (closed kitchen) still spreads throughout the entire ground floor in our house. 5. Not only the kitchen smell, but also the smell from outside enters the house. This is especially pleasant in winter when a neighbor is burning something they shouldn't. It can even bring you to tears sometimes. 6. No, this is not the reason why we are building again now. We are not completely happy with our current floor plan and we lack a 3rd children's room. But our experiences are the reason why we are now building with solid construction and without insulation.