3 ms·
In my part of Northern Europe, in the winter the issue is keeping the inside humid enough. During winter when the air temperature is -10c or less there is basic
by fyfy18 7y ago
In my part of Northern Europe, in the winter the issue is keeping the inside humid enough. During winter when the air temperature is -10c or less there is basically no water in the air.
We have a MHRV system, but it doesn't account for humidity, so will happily replace all the air inside with dry air from outside (I'm trying to automate it with HASS). Our bathroom fan has a humidity sensor, so doesn't run so much in the winter, but even so the humidity often gets down to 25% rh inside.
- macleginn 7y agoSoviet Moscow flats are notorious for constant ~15% humidity in winter. Somehow they manage this even when there is a thaw outside and humidity is quite high.
- mirimir 7y agoYeah, same here. When it's -10 C or less in the winter, relative humidity can drop to 15%. Because we have a standard heat-exchanger HRV. The rotating-filter ones do manage humidity, but they also tend to freeze up if indoor humidity goes too high. So we end up using an aerosol humidifier in the winter, and AC plus a dehumidifier in the summer.