Post #1495959

Was just passing the bathroom and heard the wind whistling in the ceiling fan vent, and suddenly I understood why I and the house got chilled last night. I had vent covers over the two bathroom ceiling fans all winter, so for most of the freezing weather, those openings were sealed shut. I took them down when we had a run of really hot days a few weeks ago, so I could purposely vent hot air out of the house. With last night's brisk wind turning the fan blades, my vents had to have been venting out warm house air and/or letting in cold outside air. I don't want to reinstall the covers for this on-again off-again cold, but I can close bathroom doors when I go to bed and reduce the heat loss.