I left the bedroom fan running all afternoon so the room would be ready for sleep. When I returned, the thermometer was almost exactly where it had been. The fan had been diligently moving air around an empty room.
Standing beneath it felt pleasant. That was the clue I had missed: the useful effect was on me.
Use air movement where someone feels it
NRCan explains that fans cool occupants by circulating air, rather than cooling an empty room. With suitable conditions, that moving air can make a comfortable thermostat setting feel better. Turn the fan off when leaving an unoccupied room.
I used the fan's instructions to choose the appropriate seasonal direction and speed. I did not assume every blade shape and control worked the same way. I wanted a gentle, useful breeze where we slept, not a noise that required another pillow over my head.
A fan is part of a heat plan
During extreme heat, follow public-health guidance and have access to a sufficiently cool place. A fan is not a guarantee of safety in a dangerously hot room. Canada's preparedness advice includes shading windows and planning ways to stay cool.
We lowered the blind before the afternoon sun, kept the air path clear and used cooling when needed. I checked the room itself rather than assuming that a spinning fan meant the temperature was safe for everyone.
The new routine was easier than the old one: fan on when we wanted the breeze, off when the room was empty. At bedtime it felt just as pleasant, and I no longer expected it to spend the afternoon doing a job it was never designed to do.
