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

I have a question about turning on the controlled residential ventilation: is it allowed to do so just like that, without causing any problems? In our old house, there was no on-off switch at all; we could only turn it off by removing the fuse. And I think I heard that germs are only prevented by continuous ventilation.

Some people do not set their ventilation system to bypass and the heat recovery runs along.

Isn't that even sensible when it is hotter outside than inside? The heat recovery is just a simple heat exchanger and mostly keeps the heat where it is (=in this case outside)?

That's right. Bypass only when it is significantly colder outside, e.g. at night.

You should never turn off the ventilation, it only works by unplugging and not via the app. There is a reason for that.

Good question. It may be allowed.

The factory setting in summer mode for us is that the system switches off as soon as the outside temperature equals the inside temperature and turns on as soon as the outside temperature is 3 degrees below the inside temperature for 1 hour.

Here it cools down at night, even below 20 degrees, but for only 2 days the 3 degree difference was not reached for more than 1 hour.

So manually ventilate and run the system at the highest setting. I want the outside temperature to be the same as the inside temperature in the morning.

It would be nice if the summer mode switched to negative pressure ventilation for 90 minutes at 3/4 o'clock at night (dream).

Only with heat recovery does the potentially cooler outside air at night run through the recovery system, and it runs dull.

It was not mistaken during the first heat wave and the heat recovery was still on, yes that was warm.

For us, the switch makes a difference of a few degrees

hm we have 40° outside and 25 inside without air conditioning, only with blackout curtains during the day when no one is here anyway and open windows at night... so far it's bearable... if it stayed like this for another 3 weeks, it would probably get warmer in here too... ugh.

When my comfortable temperature is supposed to be between 12-20°...