Check the recirculation hood beforehand, important
- quiet
- filter washable in the dishwasher
- easy to clean inside and out
- replace carbon filter annually
ours has been in use for 2 years, no grease film on the cabinets
I’m going to use this thread for my concern because it fits me quite well:
Thanks for bringing it up, because I also have some need for clarification. In our case, it’s a decentralized system and 40+. I understand that energetically it’s not really sensible to make a hole in the wall, but the expensive heating technology wants to have something to do ;) No, to be honest, the 40+ came about more or less incidentally because the photovoltaics apparently provide so much bonus, and I always thought that exhaust air wasn’t energetically feasible anymore until I came across this ventilation thread this week. Does anyone know how an exhaust hood is factored into the calculation? Just as a hole in the wall that can be sealed or also the exhaust operation itself? And how does the negative pressure interact with the decentralized fans? Naively, I would assume that’s less problematic than with central ventilation since there are holes in the walls anyway?
Thanks for bringing that up, because I also have some need for clarification. For us, however, it’s a decentralized system and 40+. I understand that energetically it’s not exactly sensible to make a hole in the wall, but the expensive heating technology also needs something to do ;) No, to be honest, the 40+ kind of came about incidentally since photovoltaics apparently bring so much bonus, and I always thought exhaust air is energetically not feasible anymore today until I came across this ventilation thread this week. Does anyone know how an exhaust hood factors into the calculation? Just as a hole in the wall that can be closed or also the exhaust operation itself? And how does the negative pressure work with decentralized fans? Naively, I would assume that it’s more unproblematic than with central ventilation since there are already holes in the walls anyway?
Do you have a stove? If yes, I would definitely also take into account the power and associated "cold" of the exhaust hood. At my parents' place, it’s really very cold when they stand in front of the stove, have the hood on, and the window is tilted because of the stove. It’s crazy what these things pull from outside :D This doesn’t concern us now since we don’t have a fireplace — but for me, it would also be a decision criterion.
I'll use this thread for my concern, as it fits me quite well:
We are currently planning our kitchen and are wondering whether to plan for a vented hood or a recirculating hood.
We do NOT have a chimney, so the decision for the "right one" could be easier.
We are building a KfW55 house WITH a central ventilation system.
The kitchen studio says that he plans recirculating hoods 90% of the time and that it is a "no-go" to make a hole in a well-insulated house to vent the steam outside. The recirculating hoods have the same performance and the smells in the room remain even with a vented hood – he said that a range hood is not there to get rid of smells. Both recirculating and vented hoods do not do that. Is that really the case? That the smells don't completely disappear – sure, I get that, but isn't it "better" if I vent everything outside?
He also said that the controlled residential ventilation does not work properly with the vented hood... It could lead to problems (but he couldn't really explain the exact problem to me).
Now to my question: What makes more sense? Do I even have a significant advantage with a vented hood? From the way it sounds, I'd actually be silly not to take a recirculating hood? What would you advise me? KfW 55+ controlled residential ventilation + recirculating or vented hood?
So we also have KFW 55 with a ventilation system and a range hood with venting. The whole thing works wonderfully. However, we installed a so-called motor flap in the wall. This is a kind of cover in the exterior wall that seals airtight and only opens when the range hood is switched on. We have an open kitchen and a stairwell nearby leading to the upper floor and wanted to prevent cooking smells from spreading throughout the house. It works perfectly.