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!
If the filters are changed regularly and everything is installed professionally, the ducts look "like new" inside, and there are no hygienic issues elsewhere. A quick online search will reveal experiences from people who have had a mechanical ventilation system in their homes for a long time.
Hello, I can only tell you how we do it:
We are also building with solid construction and without insulation. Since we didn’t want a mechanical ventilation system with heat recovery, we still decided to install decentralized ventilation (with heat recovery) in the bathrooms and the utility room. Cost factor: 1000 euros, self-installed (hole in the wall – insert unit – plug into socket – done). Our main goal here is to remove moisture from these rooms and avoid mold. The other rooms are ventilated naturally during the day.
And yes, your architect is right: we have now been living for 5 years in a prefabricated house with a mechanical ventilation system, and ours has actually been switched off recently. Why and how, I have discussed enough in other threads on this topic.
We are also building with solid construction and without insulation. Since we didn’t want a mechanical ventilation system with heat recovery, we still decided to install decentralized ventilation (with heat recovery) in the bathrooms and the utility room. Cost factor: 1000 euros, self-installed (hole in the wall – insert unit – plug into socket – done). Our main goal here is to remove moisture from these rooms and avoid mold. The other rooms are ventilated naturally during the day.
And yes, your architect is right: we have now been living for 5 years in a prefabricated house with a mechanical ventilation system, and ours has actually been switched off recently. Why and how, I have discussed enough in other threads on this topic.
B
Bauexperte15 Oct 2014 11:09Hello Saruss,
If you talk to a professional about this, you will find the original poster’s concerns reflected. I, myself, a trained heating specialist, am also not in favor of these systems. Not because of the required filter replacements, but because of the zigzag profile of the plastic ducts, whether installed in the ceiling or under the screed. No one has been able to convince me that cleaning can be reliably ensured at the highest point of the profile.
A centralized mechanical ventilation system remains a “Jehovah issue.”
Best regards, Bauexperte
Saruss schrieb:
If you regularly change the filters and everything is installed properly, the ducts look "like new" inside, and there are no other hygiene issues. You can easily find experiences online from people who have had a mechanical ventilation system in their homes for a long time.
If you talk to a professional about this, you will find the original poster’s concerns reflected. I, myself, a trained heating specialist, am also not in favor of these systems. Not because of the required filter replacements, but because of the zigzag profile of the plastic ducts, whether installed in the ceiling or under the screed. No one has been able to convince me that cleaning can be reliably ensured at the highest point of the profile.
A centralized mechanical ventilation system remains a “Jehovah issue.”
Best regards, Bauexperte
Which zigzag profile? My pipes have a completely smooth interior, even though they look "ribbed" on the outside. There is an additional layer installed inside. So apparently, there are hygienic and non-hygienic systems, but you could say the same about refrigerators, yet everyone has one.
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