Quiet decentralized ventilation for new single-family house

A central system costs more than twice as much (about €15,000). It’s obvious, the house must be completely connected with the ventilation pipes across all floors (starting from the utility room).

In a typical single-family house with 140-150m²?!? Only if a good amount of money stays somewhere in the chain...

Yes, no joke I have the prices in front of me, Central system Zehnder Comfort Air approx. 15 K €; Central system Viessmann Vitovent 300 14 K € etc. for 146 m² single-family house

Impressive, two years ago the prices for a 156m² house were between 7500-9000...

The offers I accept are in the area I have already mentioned here!?

We have 6 fans with heat recovery and in the wet rooms (2 bathrooms, kitchen, utility room) one exhaust fan each (so a total of 4). The price for the units was below the posted amount. However, you still have to consider the installation costs - unless you want to install it yourself.

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Yes, that sounds interesting, but Berlin is not just around the corner; 500 km have to be planned ahead. Is there such a center closer by?
Otherwise, you have to pack your bags...

I had searched for a long time in our area - after all, the Trier area is still a bit further west.
There is supposedly another ventilation office in (I think it was Wiesbaden or Wuppertal), but they haven’t installed anything - so you can’t listen to anything there either.

As far as I have read, you received an invitation from . If I remember correctly, they also have a decentralized system installed.

Yes, no joke, I have the prices in front of me, Central system Zehnder Comfort Air approx. 15 T €; Central system Viessmann Vitovent 300 14 T € etc. for 146 m² single-family house

That's almost 3 T € more than we paid for our 250 sqm living area (floor space 300 sqm) - the system is from Vallox. Those prices are completely overpriced for you.