ᐅ Decentralized ventilation system with minimal visibility on the exterior facade
Created on: 8 Apr 2021 11:18
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Hausbauin2021
Hello dear building forum,
We are constructing a 210 sqm (2,260 sq ft) single-family house to KfW 55 standard and want a decentralized ventilation system. (We have deliberately decided against a central ventilation system, but this is not the topic here.)
I am looking for a system that is discreet on the exterior of the house, for example, integrated into the window reveals. We do not want to have fans visible on the facade in every room.
Who has experience and can recommend something? I look forward to the exchange. Best regards
We are constructing a 210 sqm (2,260 sq ft) single-family house to KfW 55 standard and want a decentralized ventilation system. (We have deliberately decided against a central ventilation system, but this is not the topic here.)
I am looking for a system that is discreet on the exterior of the house, for example, integrated into the window reveals. We do not want to have fans visible on the facade in every room.
Who has experience and can recommend something? I look forward to the exchange. Best regards
N
nordanney16 Apr 2021 15:04Nessarose schrieb:
Is that really the case? And how much money are we talking about? We’re just at the beginning when it comes to ventilation, and I’m currently overwhelmed by all the information and opinions... Decentralized ventilation for an average single-family house costs around €2,500 (excluding installation), plus the cost of core drilling or suitable insulated blocks and some additional electrical wiring to the units. Central systems usually cost about twice as much, with higher installation expenses as well.
I like decentralized systems (I’m installing one myself during my renovation), but for new builds, I would choose central ventilation. It’s simply a bit better overall. Both, however, provide effective ventilation.
I don’t think a decentralized system is a good idea for a single-family home. For decentralized setups, you can expect a cost of about 1,000 euros per unit including installation. A typical single-family home requires around 6 to 8 units, so you’re looking at roughly 8,000 euros. On the other hand, a central system currently sells for about 12,000 to 18,000 euros. So, the factor of 2 mentioned by the previous poster is accurate.
Hausbauin2021 schrieb:
We deliberately decided against a central ventilation system, but that’s not the topic here)May I ask why? A workaround with an individual solution for the outlets seems quite counterproductive.
Bookstar schrieb:
I don’t think a decentralized system is suitable for a single-family house.May I ask why? What are the advantages of a central system compared to a decentralized one?
If it’s relevant: We are building a single-family house with two separate living units (one on each floor).
Nessarose schrieb:
May I ask why? What are the advantages of a centralized system compared to a decentralized one?
If it’s relevant: We are building a single-family house with two separate living units (each on one floor). A centralized system operates much more quietly, doesn’t require holes in your exterior walls (which can let in outside noise), is easier to maintain (only regular filter changes), offers significantly better ventilation performance and heat recovery. It’s also easy to control via an app.
There are decentralized solutions that try to compensate for some of their disadvantages.
It’s generally a poor low-budget option. I would rather skip it altogether and ventilate manually.
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hampshire16 Apr 2021 19:39Regarding the question: Such “holes” can be creatively concealed or turned into features through the façade design. How do you want the façade to look?
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