Hello everyone,
to all controlled residential ventilation system owners: Have you ever measured the CO₂ levels in ppm in your ventilated rooms out of curiosity?
According to information online, the values should be below 1000 ppm. About 400 ppm is the fresh outdoor air level. Normally, I have around 600 ppm – 700 ppm when no one is in the room. Of course, this value increases with the number of people present.
What I’ve noticed is that in our bedroom, the level rises above 1000 ppm during the night, which is not ideal. I originally thought that was exactly why I installed a controlled residential ventilation system – to always have fresh air.
So, I would be interested in comparison values from you, if you have any.
Maybe something is wrong with the system.
to all controlled residential ventilation system owners: Have you ever measured the CO₂ levels in ppm in your ventilated rooms out of curiosity?
According to information online, the values should be below 1000 ppm. About 400 ppm is the fresh outdoor air level. Normally, I have around 600 ppm – 700 ppm when no one is in the room. Of course, this value increases with the number of people present.
What I’ve noticed is that in our bedroom, the level rises above 1000 ppm during the night, which is not ideal. I originally thought that was exactly why I installed a controlled residential ventilation system – to always have fresh air.
So, I would be interested in comparison values from you, if you have any.
Maybe something is wrong with the system.
Yes, that works like this:
First, a calculation is made to determine the appropriate setting for each valve based on the required value/airflow rate.
If this was not done in your case, you should promptly send a defect claim to the system installer.
What do you consider loud? At (almost) full capacity, all systems make some noise.
First, a calculation is made to determine the appropriate setting for each valve based on the required value/airflow rate.
If this was not done in your case, you should promptly send a defect claim to the system installer.
Tommes78 schrieb:
Do you hear your mechanical ventilation system that loudly as well?
What do you consider loud? At (almost) full capacity, all systems make some noise.
Thanks for the picture. Well, I’m not sure if he set it up that way, as I wasn’t there. Based on my previous experience, probably not.
Exactly, and that’s the point: the system is running at 70%, which is why it’s noisy. It’s also a question whether it might be undersized.
Exactly, and that’s the point: the system is running at 70%, which is why it’s noisy. It’s also a question whether it might be undersized.
It is a supply air unit, about six months old.
I find it noisy; you can hear it like a loud blower in the basement utility room. Even when I close the utility room door, I can still hear it quietly in the ground floor hallway.
The area where the system exhausts the air is also noisy, like a blower.
Sound attenuators are installed, but the system itself is making the noise.
Well, I guess I have to have someone from Vallox come over, but that will just cost more.
I find it noisy; you can hear it like a loud blower in the basement utility room. Even when I close the utility room door, I can still hear it quietly in the ground floor hallway.
The area where the system exhausts the air is also noisy, like a blower.
Sound attenuators are installed, but the system itself is making the noise.
Well, I guess I have to have someone from Vallox come over, but that will just cost more.
I have another question. Is the total volume of all rooms now included in the calculation of the mechanical ventilation system, meaning also rooms without supply or exhaust vents, such as hallways or the entrance area to the garage in our case, or do only the rooms with vents installed count? That would make a significant difference.
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