Atypically high offer for ventilation system

We have a controlled residential ventilation system in our new building, and one thing I hadn't considered before is the dry air in winter, which is not beneficial for parquet flooring (which we have almost everywhere). Otherwise, I enjoy not having to think about opening a window at all.

Dry air is not a characteristic of a ventilation system. Dry air is the logical consequence of cold weather outside and regular ventilation. Anyone who manually performs their 5 air changes has the same problem in winter. By the way, the same goes for those living with the drafty windows from back in the day and effectively having continuous ventilation.

And whoever has a controlled residential ventilation system can attach a humidity sensor and then actually control based on absolute (!) humidity.

Dry air is not a property of ventilation. Dry air is the logical consequence of cold outside temperatures and regular ventilation. Those who manually perform their 5 air changes have the same problem in winter. By the way, the same applies to those living with the drafty windows from way back when and effectively have continuous ventilation.

That's true, but since most people ventilate too little, few have the problem with dry air, and it is more noticeable with controlled residential ventilation.

I have only read about half so far. Maybe someone has already mentioned it ;-)
Are own contributions possible? Then maybe you could lay the pipes yourself from the air distributors. Controlled residential ventilation is not rocket science. Short instructions, work cleanly and quietly - done. Maybe the savings potential is enough for you to still be able to afford controlled residential ventilation?

P.S: I would never want to be without it again. I am often away from home for a long time, it then stands empty and no one is there to ventilate. In winter I also don't want to ventilate .. brrrrr.

In the end, a controlled residential ventilation system is usually absolutely not economical. With 144 sqm of living space in my case, the savings amount to just €430 annually minus €43 electricity consumption for the controlled ventilation system. So, just about €387 per year.
Since I installed the system myself, my costs were only about €6200.

You have your €6200 back after about 16 years, I definitely see savings in the long run, the house will certainly last much longer ;)

400 EUR maintenance / year (of course, you can also leave it out, then it is just 5,000 EUR every 6 years for repairs), 50 EUR filter every six months, after 30 years you probably need at least a new ball bearing, no idea what that costs in labor.