Controlled residential ventilation even in the hallway? We don’t have it - stuffy

The only time we have is that from 11 pm to 2 am she is running at reduced operation. Otherwise, she hums.

We also have a Wolf, which I do not know. At our place, it always switches on for an hour at 7 am, 11 am, 5 pm, and also for an hour at night. (No guarantee, something like that). It may be that it also runs the rest of the time, but you don’t hear it.

We also have a Wolf, which I don’t know. For us, it always runs for one hour at 7, 11, 17 in the morning and also at night for one hour. (No guarantee, something like that). It may be that it runs the rest of the time too, but you can’t hear it.

But aren’t these systems supposed to run continuously to ensure that moisture is removed and fresh air comes in? Otherwise, there is a risk of mold because the windows are kept closed.

No, the systems can also be operated sensor-controlled and may shut the whole thing down completely if necessary. It depends on the respective control.

But aren't these systems actually supposed to run continuously to ensure that moisture is removed and fresh air comes in? Otherwise, there is a risk of mold because the windows are closed.

But just because you have the windows closed and don't ventilate for two hours doesn't mean you immediately get mold....

But just because you have the windows closed and don’t air out for two hours you immediately get mold....

Yeah, sure, I’m just repeating what our heating installer said.

Our system runs according to the demand: after sleeping, after cooking, etc.