Hello everyone,
we are currently planning our solid-built house without insulation. However, we are unsure whether to install a central ventilation system. The general opinion, for example in forums, is that such a system should definitely be included in a new build. Reasons given are comfort, continuous air circulation, and so on—well known points. It is also understood that it may not be energy-efficient.
BUT: I have already spoken to one or two architects who say: definitely build without it. Their reason is that everything works fine initially, but after 5 to 6 years hygienic problems can occur despite maintenance. Based on their experience, most installed systems are eventually turned off and no longer used. Some doctors also confirm this and would not install such systems themselves. Their argument is: for prefabricated houses, yes, because necessary. For solid-built houses without insulation, no.
I am torn. On one hand, I want to stay up to date with what makes sense; on the other hand, I don’t want to install something that will be switched off after a few years anyway.
I am completely unsure now whether to choose it or not and hope to get some opinions from you!
Thank you very much in advance!
we are currently planning our solid-built house without insulation. However, we are unsure whether to install a central ventilation system. The general opinion, for example in forums, is that such a system should definitely be included in a new build. Reasons given are comfort, continuous air circulation, and so on—well known points. It is also understood that it may not be energy-efficient.
BUT: I have already spoken to one or two architects who say: definitely build without it. Their reason is that everything works fine initially, but after 5 to 6 years hygienic problems can occur despite maintenance. Based on their experience, most installed systems are eventually turned off and no longer used. Some doctors also confirm this and would not install such systems themselves. Their argument is: for prefabricated houses, yes, because necessary. For solid-built houses without insulation, no.
I am torn. On one hand, I want to stay up to date with what makes sense; on the other hand, I don’t want to install something that will be switched off after a few years anyway.
I am completely unsure now whether to choose it or not and hope to get some opinions from you!
Thank you very much in advance!
S
Sebastian791 Mar 2015 09:53It is simply in the air – everywhere...
Bauexperte schrieb:
However, we only recommend heat recovery ventilation in rooms where it actually makes sense; specifically wet rooms and the kitchen. Of course, it also depends on the manufacturer and the unit installed.Operating decentralized ventilation units with heat recovery in just a few individual rooms does not make much sense. Heat recovery is actually one of the main benefits from an economic perspective. Without heat recovery, you might as well just open a window to ventilate. This results in 100% heat loss, which you then have to pay to reheat fully by yourself. But with heat recovery, you can achieve about 85–90% heat recovery, so you only need to heat the remaining 10–15% at your own expense.
In bathrooms, I have so far only installed exhaust fans without heat recovery, as it was hardly possible otherwise. Reversible fans with heat recovery have only recently become generally feasible in bathrooms (or you install two fans in the bathroom) thanks to a new component on the market. This allows the bathroom fan to run in exhaust mode during use for a set period, while a fan coupled to the bathroom unit (also possibly located in another room) supplies fresh air. This way, no one has to endure unpleasant odors, and moisture from showering and bathing is efficiently removed.
siko82 schrieb:
I always thought that a decentralized ventilation unit costs about 1000,- Euro per room. Now I was told that a Viessmann Vitovent 200 D costs about 3000,- Euro per room. Could that be true? Which manufacturer would you recommend?
Thanks3000.00 € per room... Is that unit decorated with gold?
Since I’m actually selling decentralized ventilation technology myself, I can say that would be wildly overpriced. That price might be reasonable for 5 to 6 units, but not for a single one.
[...]
For comparison:
I recently planned a ventilation system including installation for a customer with Inventer and Sevi units. The system with Inventer was about 1000.00 € more expensive than the one with Sevi.
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Hello,
We appreciate that you are taking so much time and engaging thoroughly with users’ questions about ventilation. However, you should be careful not to let your self-promotion dominate; your profile is the appropriate place for that, as well as formal offers when you are invited to submit them.
For this reason, I have removed the offer text that would have appeared instead of the brackets below.
Regards, Bauexperte
Bauexperte
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