Do you need a kitchen extractor hood?

as already mentioned by several people, the two devices are designed for different purposes.

My manufacturer of the ventilation system specifies for the design of the controlled residential ventilation up to 30 m³/h per ventilation duct, i.e. even if I run the ventilation system higher than currently, approximately 30 m³/h will be extracted at the ceiling valve in the kitchen because I have only installed one ventilation duct per ceiling valve (up to two would be possible).
A medium extraction hood already manages to push through ten times the air volume through the filters in the same time with the positive effect of cleaning the air from greasy components.

For a house with this efficiency class, I would choose a recirculating extraction hood with an activated carbon filter.

Oh right, I didn't think about the grease. Thanks for the tips. We already have a [Umlufthaube]. I learned some time ago that you should turn it on a few minutes before cooking so the air around the stove starts moving accordingly. Still, we have quite a bit of grease on the cabinets.

Energy saving or not, I would always install an exhaust hood if structurally possible. Filters cost money on the one hand and on the other hand, it's all just a makeshift solution. The smell, the grease, and also the steam should simply be blown outside.

The only disadvantage in new houses will probably be the tightness, which basically means that a window always has to be tilted open when the hood is running.

Hello,

in a house with controlled residential ventilation, I would definitely advise against an exhaust air solution.

When I look at the performance of a modern exhaust hood and then consider how much heat energy I am blowing out of the house, I could have saved myself the controlled residential ventilation with heat recovery.

At the latest, when a wood-burning stove comes into play, it becomes really complicated with exhaust air, especially if window contacts and a differential pressure monitor also have to be installed.

We have, for example, a Berbel recirculation hood, which has a "kind of catalyst" built into the integrated activated carbon filter that independently reactivates the activated carbon from time to time – so replacement is (probably) never necessary.

The grease particles in the sucked-in air are "slapped" onto the walls of the ducts by centrifugal force in a double "airfoil profile" and can simply be wiped off after cooking.

You should just make sure that two power outlets are required for this type of exhaust hood – we had to come back afterwards and install a second power outlet here.

Regards,

Dirk

We are installing Bora again - cooktop extractor with air vented outside. This works very well. Check out YouTube for "BORA - cooktop extractor downward".

Regards, Steffen

Which ones do you have? Our Berbel only needs one connection.