Fans don’t cool rooms; they cool people. They blow sweat off your skin. That’s great—until the air is hot soup.
If you use a fan with a closed window in a hot room? You’re just stirring hot air. That’s like shaking a hot potato. It does nothing.
But place a fan in front of an open window at night? Boom. You create a vacuum that pulls cool air from outside. It’s the cheapest thrill in home engineering.
Is it best to keep windows closed in hot weather - use this guide to
The Weirdest Rule of All
You might own double-pane windows. They are heat’s mortal enemy. But here’s the kicker: if the sun beats directly on them, they still get toasty. Nothing is perfect.
In England, people leave windows open during heat waves because they believe in “fresh air.” They also drink warm beer. Both are questionable life choices.
And in the Middle East, they use windcatchers—towers that trap breezes. No electricity, no carbon footprint. It’s pure invention. We could learn a thing or two from mud-brick geniuses.
