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The ideal situation is that you exchange all your inside air in as small timespan as possible. Air doesn't hold that much heat, so your walls, furniture and oth
by distances 4y ago
The ideal situation is that you exchange all your inside air in as small timespan as possible. Air doesn't hold that much heat, so your walls, furniture and other mass retains their heat. The new fresh air gets heated up relatively fast.
So you want maximum airflow for a short time. Best way is to fully open windows on different sides of the house and hope that creates the flow.
Very common method in Germany, they call it Stoßlüftung.
- criddell 4y agoI don’t worry about heating in the winter, but I do worry about cooling in the summer. When it’s 102F/38C outside, my AC can barely hold 76F/24C inside. If I open a window for 5 minutes, I get a blast of hot air that will result in my AC running for hours. On a hot day, the indoor temperature probably won’t drop until overnight.
- distances 4y agoWell sounds like you're from a warmer climate, so makes sense if the European methods do not apply. I have exactly the opposite problem from you. I don't even have AC, plus I'm comfortable at 82F/28C inside so I can keep the windows open all summer. In winter on the other hand, "keeping the window cracked open" like people have commented is definitely not an option. All modern buildings have mechanized ventilation systems for managing this but I live in an old apartment without ventilation, so a large airflow for short periods seems to be the best approach to get fresh air without losing the precious heat.