[fnordian_slip]

I always thought the American meme about Lüften / Stoßlüften was just about the fact that people like exotic names for normal behaviours. Are you telling me that there is a significant percentage of people in the US who don't fully open two or more windows to get the air completely exchanged about three times a day in the winter?

I know you have AC for the summer, where we use Lüften during the night and then close our exterior blinds. And that makes sense, as your summers are hotter in many areas and it doesn't get cool enough at night for our strategy to work consistently. But I have always assumed that everyone does Lüften in the winter, and that you guys just like the funny sounding word we use for it.

[crowbahr]

I run a CO2 monitor to let me know when to open the windows in the winter cause it's damn cold here but yeah: many Americans never open any windows.

Usually the houses are too poorly sealed to keep the air in anyways, so you get slow air replacement from the leaks.