It takes longer but it works perfectly fine for having fresh air constantly without having the window completely open. Mine is currently opened like that and I can feel the fresh winter air 🥰
Where did i read this… i think it is about impact ventilation vs. always a bit open, the later wasting way more heating energy. At least, downward or sideways slant would be more effective (cold air is heavier).
Oh yeah, I really didn’t think about it from an energy perspective, but I also never slant it when I heat. Only when it’s a little warmer, in winter I do “impact ventilate”. (What an interesting word, in German it’s “Stoßlüften”, so a very similar literal translation :D)
Really interesting point with the mass though! I do notice active air exchange when it’s colder, however, so not sure if it would make such a difference?
It takes longer but it works perfectly fine for having fresh air constantly without having the window completely open. Mine is currently opened like that and I can feel the fresh winter air 🥰
Where did i read this… i think it is about impact ventilation vs. always a bit open, the later wasting way more heating energy. At least, downward or sideways slant would be more effective (cold air is heavier).
Oh yeah, I really didn’t think about it from an energy perspective, but I also never slant it when I heat. Only when it’s a little warmer, in winter I do “impact ventilate”. (What an interesting word, in German it’s “Stoßlüften”, so a very similar literal translation :D)
Really interesting point with the mass though! I do notice active air exchange when it’s colder, however, so not sure if it would make such a difference?
Downwards it has 2 big flaws. More complex because gravity and you would knock stuff of your window sill.