Semi-detached house yes or no

But we have also heard negatives like the noise level, that it can cause drafts, the ventilation itself being quite large and unpleasant to look at in the individual rooms, etc. Since we also do shock ventilation 2-3 times a day, the question is simply whether it is even needed.

Maybe you should just knock on a house. As already said: central no longer works, only DECENTRALIZED...!

I know the arguments for central ventilation:
Noise... it’s louder when I open the window at home. Ours runs when we are not there.
It can cause drafts... yes, but also when the window is open.
Size... if it hangs under the ceiling, the size doesn’t matter either.
I wouldn’t know what would be unpleasant to look at in the rooms.

Now to the advantages:
Every day you save one hour of ventilation time in the house. Your shock ventilation consumes your own energy and additionally heating energy. And that’s what it’s about: saving heating energy by not having to let it out. No burglars, no animals that could get through the doors and windows.
No mold!
I’m done

how are you supposed to get a central ventilation system in then...

It was probably more about manual ventilation than about upgrading the decentralized automatic ventilation to a central one.

Tonight I would like to start a topic about our purchase with construction description and submission plan [...] In which subtopic would that be best placed? I suppose under planning / brainstorming / general questions or am I wrong?

I would find it "correct" if it also involves the construction description, but many people also post pure floor plan threads there. Personally, I would prefer "one project - one thread," but there are other people here too and special threads also have their justification—especially since flame wars like "controlled residential ventilation" or "ETICS" tend to get out of hand and could virtually "hijack" the main project thread. See , currently there are pages-long discussions just about the front door and automatic lock. But you survive that too.

It was probably more about manual ventilation than upgrading the decentralized automatic ventilation to a central one.

Yep:

A decentralized ventilation system is also planned in the house, which we would like to cancel. According to the builder, it must be checked with the energy consultant whether this is necessary to achieve the KfW 55 or not; that would depend on how the calculation for the KfW 55 was made.

It is needed for 55 anyway

It was probably more about manual ventilation than upgrading the decentralized automatic ventilation to a central one.

I replied to Tassimat in post 51 above me... he recommended a central one.

Since the market according to your statement currently and for the next 2-3 years does not offer anything else, I am of the opinion that you should first take the semi-detached house. I assume, of course depending on the location, that it will not lose value, rather the opposite, and if you no longer like it in ten years or so, sell it or simultaneously look for something else. Perhaps your financial situation will also improve by then.

Hello,

unfortunately, a central ventilation system is no longer possible according to the builder without significantly more effort and therefore higher costs.

Regarding the decentralized ventilation system, the Pluggit iconVent 160 would be installed.

Unfortunately, I have not found anything about it using the search function. Does anyone happen to know or use this decentralized ventilation system and can report?