Ventilation with controlled residential ventilation system

You can also run the ventilation at full power and open the window! Where is the problem? It just doesn't make sense to keep the ventilation running then... but if you are not technically savvy and can't manage to turn down the WRL, then do that! However, it does cost a bit of fan electricity...

Hello

So I can’t quite understand the whole discussion about open windows and controlled residential ventilation...
Okay, I have no experience yet – I don’t really know how my usage behavior will be – we are just building *with controlled residential ventilation*...

When I think about my future usage behavior, I always come to the conclusion that in summer I will probably have the patio door open "permanently" – so the kids can play in the garden, so I can sit on the terrace myself to read a book, etc. etc.
But what does that have to do with wanting good, fresh, and above all pollen-free air in the bathrooms and bedrooms? :confused:

I have the windows open in at most 1 or 2 living rooms – in the rooms where I spend the day. Or do you all keep all the windows open in the whole house all day??

What is the disadvantage if the controlled residential ventilation runs with the window open? It’s just the electricity consumption...
If I calculate the electricity consumption per room, and then think about how many rooms I have the windows open in, I come to a very small number for pointless electricity consumption...
Unfortunately, centralized controlled residential ventilation cannot yet be controlled individually for each room... Maybe someday...

Best regards
Micha :cool:

Why can't you close the door when you want to read on the terrace or the children are playing in the garden? You don't run in and out every minute, but this way you bring pollen, insects, and warm air into the house. At the same time, the pollen is also drawn into all the exhaust rooms.

Best regards,
Sebastian

Sounds somehow dangerous if "mold" could develop in the pipes? How high is the risk of mold there?

Mold risk? It only exists with uninsulated fresh air/exhaust air pipes in winter, or with active cooling in controlled residential ventilation in summer. However, I have never heard of such a thing and never any case where this was ever the problem. Mold risk exists at most inside the building in winter if you have no ventilation system and never ventilate by opening windows! Don’t worry about mold with controlled residential ventilation. That is probably the rarest problem that occurs with controlled residential ventilation!

Why can't you close the door .......

Closing the doors and windows during the day will almost automatically become habitual; otherwise, the rooms of modern buildings will be considerably "charged" during summer heat periods. Once the heat is inside the building, it becomes difficult to lower the indoor temperature again. With controlled residential ventilation, there is the possibility to specifically use the lowest outdoor temperatures, usually between 4...6 a.m., possibly with a higher ventilation level. At noon, when outdoor temperatures are highest, turn it completely off, possibly also using the summer bypass. However, this requires that no noise occurs even at higher ventilation levels. => duct dimensioning. Many systems suffer from this. Whether this is sufficient overall can only be determined in advance with a cooling load calculation.
best regards

Why can't you close the door when you want to read on the terrace or the kids are playing in the garden?

Closing the doors and windows during the day will almost happen automatically,

I see it the same way – you will do that completely automatically. How will I do it myself? You can ask me again in a year – then I'll know :p

Regards Micha :cool: