Air ConditioningPodcasts Your Calls, Our Answers Podcast

Air Conditioning the Upstairs

Learn whether or not to air condition the upstairs level of your home when nobody is occupying it. Find out how proper attic ventilation can help prevent upstairs mold.

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LESLIE: Barbara in Georgia has an air conditioning question. What can we do for you today?

BARBARA: Hi, thanks for taking my phone call. I live northeast outside of Atlanta; have a two-story house with individual air conditioning units for each level …

TOM: OK.

BARBARA: … and since I only live on the main floor, is it prudent to turn off the air conditioning for the second floor or just set it at a higher temperature?

TOM: I don’t see any reason that you need to keep the air conditioning on the second floor on. As long as you’re comfortable on the first floor there’s no reason to run it on the second at the same time.

BARBARA: Alright, and I wouldn’t have to worry about humidity building or any kind of mold or …?

TOM: I don’t think so. No, I don’t think so. If your attic is properly vented it shouldn’t be an issue because the attics are always going to be as humid as they are with the system on or with the system off. It really doesn’t make any difference.