According to Dr. Gary Hunt, an engineer at Imperial College in London, and an expert in ventilation, most people don’t know how to adjust the classic sash windows designed by Edwardians and Victorians to maximize airflow. His simple lesson helped us cool down the fierce summers in our hot top floor apartment, and lessened our air conditioner use and costs.
Some days it sparks the feeling that illustrator Monica Ramos* evokes in so many of her artworks, of people relaxing in lush bodies of water, which refresh us just looking at them. THAT’s the feeling we want…
According to Dr. Hunt’s research:
The trick to getting the maximum flow of air through the window is to slide the sashes so the window is open equally at the top and bottom…..
The cool external air flushes the warm air out of the room and also cools the walls, floor and ceiling. The cool walls then absorb heat the following day and prevent the internal temperatures from rising as high.
When you open your windows, make sure there’s an equal gap at top and bottom to allow cooler air through the lower opening and push warmer air through the top.
Doing this, we’ve been able to delay putting on the AC by hours, if at all, to revel in fresh air…