'House burping' is a cold reality in Germany. Americans are warming to it.

[Zorro]

The often mandated practice of airing out homes, no matter the season, has strained and even ended relationships, but it’s gotten a boost on U.S. social media

After moving to Berlin from Honolulu, Wyatt Gordon was surprised when his new German roommate marched into his bedroom at 8 a.m. and threw open the windows.

It turned out that his cohabitant, Laura, maintained a strict ventilation regime. Three times a day, at precise times, all the windows in the apartment needed to be opened. It didn’t matter whether it was the dead of winter or a weekend morning, or if Gordon had company. Rules were rules.

“I had men and women in my bed that I’d brought home from the club or wherever,” said Gordon, now 35, a city planner originally from Richmond. As is common on Berlin weekends, they would crawl into bed around dawn — “only to be woken up an hour later by a blast of ice-cold air,” he recalled. “How do you explain to the person laying in bed next to you that this is what the German culture demands of us?”

How, in other words, to explain lüften?

Lüften, meaning “airing out” or “ventilation,” is dogma in German households. Rain or shine, hot or cold (which, in Berlin winters, can be bone-numbing), windows must be opened several times a day to exchange stale indoor air for the fresh outdoor stuff.

https://www.sandiegouniontribune.com/2026/02/14/house-burping-is-a-cold-reality-in-germany-americans-are-warming-to-it/?share=rsicnorosbni20iigrot

[Liberal In Texas]

1. Maybe once in awhile, but

3 times a day is a bit German excessive.
"You ville open da vindow!"

[Chemical Bill]

2. After Earth Day in 1970...

Houses got more insulation and waterproofing. Ventilation didn't catch up for decades. Indoor air quality suffered badly. My wife and I suffer from air quality issues all winter, in our fully insulated but not ventilated house. We often crack the door open.

[dalton99a]

3. "Many people have frozen to death, but no one has died from a bad smell."

... Befuddled, Wessen took to Reddit to ask why Germans are so fixated on lüften. He was barraged with indignant responses from Germans: “Like, ‘You have to lüften.’ There’s an idea that if you don’t do it, the air gets disgusting somehow.”

During the coronavirus pandemic, lüften took on an outsize importance in Germany.

Then-Chancellor Angela Merkel promoted lüften as the “cheapest and most effective measure” to combat the virus. The federal Environment Ministry issued lüften guidance, recommending, among other things, opening the windows five times per hour in a room where people were exercising. Somewhat unhelpfully, the guidance added: “However, drafts should not occur in the room.”

Which raises a curious point: For all their fear of stale air, Germans are nearly as afraid of drafts. It’s not uncommon for someone to enter an apartment (or classroom or train or bus), remark on the stagnant air and theatrically open a window, only for someone else to complain a minute later about the draft and just as theatrically close it. After all, there is a German saying: “Many people have frozen to death, but no one has died from a bad smell.”

[newdeal2]

4. Might have to do with their heating systems

I will open windows for "fresh" air but I'm not maniacal about it.

[Takket]

5. you don't need to do this

the air in your home is constantly being circulated with outdoor air. homes are not air tight to the outside. this is why you don't suffocate if you leave the windows and doors closed.

there are certainly impurities in the air indoors that build up over time, like dust........ buy an air cleaner if they bother you. constantly overcooling or overheating your home by opening the windows during extreme temperatures is going to overwork your HVAC unit and cause it to fail quicker.

[JustABozoOnThisBus]

12. My house is 100 years old. It burps itself. ...

... and farts, leaks, squeaks, creaks, bangs, whistles.

Many of the noises are from the steam pipes, radiators, and boiler valves. All those noises are reassuring, telling me that things are working.

[Blue Full Moon]

6. Health reasons

Not 3 times a day just every once in a while.

[LearnedHand]

7. I guess I'm weird, but I keep bedroom windows open all the time

I live in a cold but not frigid climate, but I love having the fresh air at all times. I sort of understand the idea to do lüften, although a 3x/day ritual would seem like a lot of trouble.

[Igel]

8. I guess energy's really cheap there.

Much cheaper than, say, in TX or even New Jersey or New York.

Otherwise, cooling everything to 10, 15, 20 degrees below (or, in some places, above) the usual temperature only to reheat it a bit later ... even a couple of times a week ... seems energy unwise.

It's bad enough that there's air volume turnover that's probably much more than needed in a lot of houses.

[pcdb]

11. Germany has the most expensive energy in Europe.

If they're ventilating their homes multiple times a day in the winter, then they can't complain about the heating bill.

[EX500rider]

14. "I guess energy's really cheap there."

Electricity in Germany is consistently much more expensive than in the United States, typically costing two to three times more for residential consumers. As of mid-2025, German households paid around 38–40 cents per kWh ($0.38-$0.40/kWh), while U.S. residential costs averaged closer to 12-15 cents per kWh.

[GoCubsGo]

9. I'd have mold growing everywhere, if I did that.

It's really humid here much of the year. The central heating and air get run more to keep the air dry than they do to change the temperature. Not to mention that, if you open up your house in the Spring, you'll have a layer of pollen everywhere within minutes. Good luck getting that out of your house.

[milestogo]

10. Alternately, you could stop bringing strange men and women home to your bed from the club

or wherever.

[Sequoia]

13. I do it too.

I have an old 1900 shotgun style house and open both doors on either end for an air out. Breezy and cool with fresh air.