Question about everyday life with a controlled residential ventilation system

I simply assume that he just meant a chimney - a controlled residential ventilation system does not replace a chimney due to the low air exchange rates. In addition, the greasy fumes are poison for the ducts.

That's true!

In connection with a controlled residential ventilation system, a recirculation hood in the kitchen is recommended (not an exhaust hood). Optionally, an additional filter can be installed in front of the extraction opening in the cooking area.

Regarding the pressure curve when opening windows, I will get back to you in six months, if I don't forget ... hopefully with my own practical experience. I'm Not convinced, to use Joschka's words ...

I have CO² sensors at strategic points and also one directly in the system. This way, the system is continuously ramped up or down via the sensors.

Hello,

what would strategic points be? For example, we have a party cellar of about 30 sqm, I could imagine that. On the other hand, there might only be a celebration once or twice a year, so you could also manually increase the performance and do without such a sensor, right?

Regards

Kitchen, toilets, bedrooms.

In occasional events like a party, of course you can manually increase the performance.

That would be using a sledgehammer to crack a nut if you were to install a sensor just for that.

As long as there is no individual volume flow control, balancing the system is never 100% accurate – most companies just walk through the house once, apply an anemometer, and that's it...

Very old thread, but under "Anemometer" there are otherwise only Proxon topics.

The above-cited statement that the heating engineer sets the volume flows is, in my experience, wishful thinking. All installations I know of were installed "strictly according to manufacturer specifications." Unfortunately, that means: plan, buy parts, connect, plug in, next build.

I have some issues with the shortest supply air ducts, e.g., in the bedroom with the "wind" and flow noises, while hardly anything arrives in the basement. I once corrected that a bit with these foam silencers in the valve. But I want to address the root cause and adjust the volume flows roughly to the target values in the distribution box.

For this, I got the Zehnder Comfoset air volume throttles and would need to check the air volumes in the next step to make meaningful corrections. For that, I probably need to borrow an anemometer for a few days.

Question: has anyone done this already and can give me tips, or is the measuring device money wasted? Feeling air volumes is not really my strength.

For this, I got the Zehnder Comfoset airflow restrictors and would need to check the airflow in the next step to make meaningful adjustments. I guess I would have to borrow an anemometer for a few days.

We have two Comfort Air units (two-family house). For us, everything was fine with the noises. In the other apartment, the system was also set too high. There is a maintenance menu where the airflow can be throttled via software. The airflow restrictors didn't really help much.