Exhaust hood in controlled residential ventilation: Your experiences?

Hello everyone,

does anyone here operate an exhaust hood despite having [Kontrollierte-Wohnraumlüftung]? Generally, with a [Kontrollierte-Wohnraumlüftung], recirculation is always recommended, but it seems it is also possible to rely on exhaust, which would appeal to me (odors and dirt stay outside).

What are your experiences?

Thanks in advance!

Hello,

Kfw 70 or better?

Rhenish greetings

no KFW standard

The topic is discussed here:

https://www.hausbau-forum.de/threads/Dunstabzug-ueber-Dach-oder-wand.10575

Rhenish greetings

Thank you for the information. However, the exhaust hood in connection with a controlled residential ventilation system is not discussed there. The ventilation system manufacturer generally recommends recirculated air, but it still must be feasible.

Hello,

in my opinion, an exhaust hood in connection with a controlled residential ventilation system is relatively pointless.

Take a look at how much air such an exhaust hood blows out of the house – without opening a window (at least tilting it), you can no longer operate a modern exhaust hood without generating an enormous negative pressure in the building very quickly, which will very likely massively disrupt your controlled residential ventilation system.

If your concern is "only" effective odor and grease particle filtration, I would recommend the homepage of the company "Berbel."

We have a recirculation hood from Berbel in our new kitchen – two weeks ago it even completely eliminated the typical raclette smell within a very short time.

Our hood also has (as an additional feature) a self-regenerating activated carbon filter (with built-in catalyst) – so we probably will not need to replace the filter media.

Due to a special shape of the hood's "intake channels" (similar to the profile of a jet wing), the majority of the suspended particles in the air drawn in are "splattered against the wall" by centrifugal force before the activated carbon filter, where they stick and can simply be wiped off after cooking.

Regards,

Dirk