Air-water heat pump current consumption and data

Window tilted for 10 minutes is not enough, we ventilate crosswise with the sash wide open

cool, someone is struggling with too much humidity and I’m happy when it rises to 70% in the bathroom for 30 minutes. I rather have the problem that all rooms are too dry.

cool someone is struggling with too much humidity and I’m happy when it rises to 70% in the bathroom and stays there for 30 minutes. I rather have the problem that all rooms are too dry.

Dry eyes are personal bad luck with controlled residential ventilation and co. Humidity in rooms and the consequences thereof are a whole different matter. Basically, I don’t find 60% humidity bad. It’s not generally demonized but is the outer limit for a still healthy indoor climate. I only notice a damp smell above 65% (and that only over a longer period). About the problem: The simplest way is, buy an electric dehumidifier for 150€ on Amazon from Comfee and let the device run for a week. Afterwards, only as needed. For me, depending on the weather, it runs every 2-3 days for 6 hours in the storage cellar. I bought the device last winter and first let it run for a month straight. After 12 hours the device was full (3L).

I rather think that simply the rooms are not ventilated properly.

Open the windows 3-4 times a day and create a draft. You need cold air that can absorb moisture. If you ventilate from 23.5 to 21.5 degrees, that hardly does anything.

Why does that not help? I also don't believe in a leak. You would already notice that somewhere on the ceiling in the ground floor. Or on the joints that would have to be permanently moist... What I notice is that when my wife showers, who only uses the hand shower, the humidity does not rise nearly as much as when I shower with the rain shower.

Really? Humidity is always relative to temperature. Cold air can absorb much more moisture again than air at 22 degrees. And then also ventilate it out again by airing out. Even when the air at 5 degrees as well as at 23 degrees each has 60% humidity.

So the explanation is backwards, cold air can of course hold less moisture, which is why the air is always so dry in winter. However, the effect is still the same. Letting cold winter air from outside (low absolute humidity) in warms up inside and absorbs the moisture in the air in order to be carried out again when ventilating. That is why cross-ventilation is so important.