ᐅ Which ventilation system???

Even though the system has already been installed in our home, I wanted to ask if there is a significant difference between Vallox and Zehnder ventilation systems in terms of price, ease of use, quality, and effectiveness?

In the building specification, a controlled residential ventilation system with heat recovery from manufacturer A was explicitly stated, but manufacturer B was installed.

Before anyone asks why I didn’t complain earlier: at the time, I couldn’t find much information online about either system except for the data sheets, and both seemed pretty similar.

So, I didn’t really mind. But after three years, presumably more of these systems have been installed, and there might be more practical experience available now.

Good luck and thanks...

Without specific models, making a comparison will be difficult.

As a rule, the systems are 90% identical and have the same specifications. Even internally, the components often come from the same manufacturer... so if the data sheets show similar values, then everything is likely to be accurate...

There was no specific model mentioned in the building specification; it only referred to what needs to be installed based on the area or volume, according to the calculation. I thought maybe someone here is familiar with both manufacturers and could share some pros and cons.

One more question: I believe the description lists 9 ventilation levels with corresponding power consumption, but the remote control only allows setting 3 levels plus "away" or minimum. Is this the case for all systems, or can the selectable levels be adjusted?

Which Vallox unit do you have now?

Where did I write that I have a Vallox :p It’s a Zehnder Comfoair 350 ...