The newly-popular German practice of "lüften" – or "house burping" – doesn’t work as well in the US, where home owners rely more on heating and cooling systems and less on windows. An HVAC engineer explains the trade-offs for older homes struggling with dampness.
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@TheConversationUS
"LÜFTEN" of course isn't a "newly-popular" practice. It has always been a normal practice, as air conditioner weren't and still aren't as usual as in the US.
We open windows wide for 15 minutes several times a day. Classes are supposed to open all windows after each lesson. In winter. In summer windows are open anyway.
@TheConversationUS where I grew up we have cold winters and hot summers. Opening the window for 10-15 minutes a day doesn't change the temperature much, because walls and furniture don't adapt their temperature so quickly.