Hello,
it’s me again with a question.
We spoke with the energy consultant, and they strongly recommended installing a central ventilation system for our house (which will only be built in early spring next year) to prevent mold. Our potential architect, however, thinks that this isn’t necessarily needed, and that ventilation in the bathroom and kitchen would be enough. A central ventilation system is not only expensive but also somewhat complicated to install and difficult to clean. Over the years, it might get very dirty and start to smell. Now I’m looking for good advice—who is right? The house will have about 180 square meters (1,940 square feet) of living space, no basement, and two full floors.
Best regards,
Katha28
it’s me again with a question.
We spoke with the energy consultant, and they strongly recommended installing a central ventilation system for our house (which will only be built in early spring next year) to prevent mold. Our potential architect, however, thinks that this isn’t necessarily needed, and that ventilation in the bathroom and kitchen would be enough. A central ventilation system is not only expensive but also somewhat complicated to install and difficult to clean. Over the years, it might get very dirty and start to smell. Now I’m looking for good advice—who is right? The house will have about 180 square meters (1,940 square feet) of living space, no basement, and two full floors.
Best regards,
Katha28
U
Username_wahl28 Jul 2018 14:19I am also not satisfied with the decentralized system. High initial costs (including installation and electrical work, several thousand euros), the annual maintenance is more expensive than the energy savings (DIY was not possible, it’s complex and the filter material also costs money), noisy even at the lowest setting (I have to turn it off at night in the bedroom), heat loss due to the “holes” in the insulation.
[QUOTE="EinMarc, post: 272748, member: 30287"]@haydee
Sorry, that might have come across the wrong way. We meant the same thing; it wasn’t meant as criticism.
In our case, the house will stay closed and the air conditioning will turn on when heating is needed.
That way, my cats won’t run away, the flying insects stay outside, and the humid, pollen-laden air stays out as well. If the filters also stay fresh longer because only the indoor dust that we bring in circulates, it’s a win-win for me, and I definitely want a system like that!
About cleaning:
I found an Austrian study that really goes into detail on this topic. It recommends using round spiral ducting with a diameter of at least 125mm (5 inches) and sufficient access panels.
Is that still the current standard? I would feel more comfortable being able to inspect and clean the system myself, especially since I have mild asthma and never know if I might move to another floor someday (switching floors → worsening symptoms).
But is it even practical to install such large ducts with access panels?
Exactly now is one of those situations where the system is too slow. Suddenly a thunderstorm and only 19°C (66°F) with fresh air outside. In this case, classic open windows are best.
With your allergy, make sure you don’t use standard filters on the supply air.
Sorry, that might have come across the wrong way. We meant the same thing; it wasn’t meant as criticism.
In our case, the house will stay closed and the air conditioning will turn on when heating is needed.
That way, my cats won’t run away, the flying insects stay outside, and the humid, pollen-laden air stays out as well. If the filters also stay fresh longer because only the indoor dust that we bring in circulates, it’s a win-win for me, and I definitely want a system like that!
About cleaning:
I found an Austrian study that really goes into detail on this topic. It recommends using round spiral ducting with a diameter of at least 125mm (5 inches) and sufficient access panels.
Is that still the current standard? I would feel more comfortable being able to inspect and clean the system myself, especially since I have mild asthma and never know if I might move to another floor someday (switching floors → worsening symptoms).
But is it even practical to install such large ducts with access panels?
Exactly now is one of those situations where the system is too slow. Suddenly a thunderstorm and only 19°C (66°F) with fresh air outside. In this case, classic open windows are best.
With your allergy, make sure you don’t use standard filters on the supply air.
hausnrplus256 Jul 2020 20:05haydee schrieb:
With your allergy, make sure you don’t have the standard filters in the supply air.Is it possible to replace the filter yourself? What exactly is different with the higher filter classes? Is it really just the filter that I would replace after a certain period of use anyway?
Or do I need to pay attention to this, insist on it, or specify it when purchasing or installing, or can I simply change it myself later?
Thanks, best regards
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