Does fresh air really warm up faster than stale air?
Translated from German and summarized by DistantNews. Read the original for the full story.
At a glance
- The article examines Germanyโs winter habit of briefly opening windows wide to bring in fresh air.
- It asks whether fresh air can be heated more easily than stale indoor air and when airing out a home harms its energy balance.
- The practice has also attracted attention abroad, including through a New York Times article describing it as โhouse burping.โ
Opening the windows wide in winter can feel counterintuitive, especially to people from countries where windows stay tightly shut in cold weather. In Germany, however, airing out rooms is a familiar habit, even when temperatures are near freezing.
The practice drew attention in the United States after a New York Times article introduced readers to โhouse burping,โ describing it as a TikTok trend that had spread virally. The article also cited former German Chancellor Angela Merkel, who recommended ventilation as one of the โcheapest and most effective measuresโ against the coronavirus.
The question here is more practical: does briefly letting in fresh air make a home easier to heat? Physics provides the answer. The article also examines when airing out a house begins to damage its energy balance.
cheapest and most effective measures
Originally published by Die Zeit in German. Translated, summarized, and contextualized automatically by DistantNews, with a note on how the source frames the story. Not individually reviewed before publishing. How this works.