Dear PoPville – Leave the A/C on or off During the Day?

by Prince Of Petworth July 18, 2013 at 2:30 pm 122 Comments

Photo by PoPville flickr user Christopher Michael Poole

“Dear PoPville,

Today, I returned home from work to find my apartment 92 degrees! It’s awful, I think it’s hotter inside than out on the street right now (at 7pm). At this rate, it probably won’t be a comfortable temperature (i.e.upper 70s) in my apartment until I go to bed.

My issue here is a disagreement with my roommate. He leaves for work later than I do and turns off our A/C system for the entire day. I’ve asked him to keep it on and adjust the temperature to something reasonable (like 83 degrees) so that it’s not sweltering hot when I return home from the office (I’m usually home first). We have central A/C, so it’s easy for us to set the temperature and let the system regulate itself.

He thinks that leaving the A/C system on during the day is wasteful. I think it doesn’t really matter, as the A/C system will need to blow at full blast for multiple hours in the evening instead of gradually regulating itself throughout the day.

Who’s right in this situation?”


Subscribe to our mailing list