And? Are you sweating? We are not! :P

We still live without [Kontrollierte-Wohnraumlüftung] (and specifically in the attic with huge windows without external shading, so stop fussing about it) – how much effort is it to switch the bypass on and off? Do you press a button or do you have to start modifying things? Can you change it twice a day? That would probably be optimal.

A controlled residential ventilation system does not provide any cooling. Even at night, it only achieves a maximum cooling of 1 to 2 degrees. The only help is to open all windows wide in the morning.

We still live without controlled residential ventilation (and specifically in the attic with huge windows without external shading, so stop whining ) – how much effort is it to turn the bypass on and off? Do you press a button or do you start rebuilding things? Can you change it twice a day? That would probably be ideal.

You buy a system with an automatic bypass

Controlled residential ventilation doesn't help with cooling. Even at night it achieves a maximum of 1 to 2 degrees cooling. The only help is to throw all the windows wide open in the morning.

And what is the difference between outdoor air introduced by controlled residential ventilation and air introduced by manual ventilation? Nonsense. The controlled residential ventilation completely exchanges the room air every 2.5 hours and is therefore significantly more effective than your 10 minutes in the morning. Automatically on top of that. You can also do both

uh... no, the ventilation does NOT do the trick. It cannot cool the house down. Opening the windows downstairs and in the attic overnight works much better and faster.

Depends on the interpretation of the [Kontrollierte-Wohnraumlüftung] and window areas. Usually, a [Kontrollierte-Wohnraumlüftung] exchanges the air faster than it would through the windows.

You buy a system with an automatic bypass

And what is the difference between outdoor air introduced by controlled residential ventilation and air by manual ventilation? Nonsense. Controlled residential ventilation completely exchanges the room air every 2.5 hours and is thus significantly more effective than your 10 minutes in the morning. Automatically, too. You can also do both

Please think once BEFORE you write something. Controlled residential ventilation has a far too low volume flow. You can figure out or google the rest yourself...

And with a window, I do what controlled residential ventilation can do in a few seconds, max minutes.

And don’t come to me now with monster controlled residential ventilations. I am talking about the 99% installed standard systems