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| Hey all-
So we have been having issues with moisture in our basement. We live in a Baltimore row-home and the moisture caused a bit of mold on two cloth items and a bit on some cardboard. So no huge problems yet. I recently bought a dehumidifier and it's been running in the basement. Additionally, there is one AC vent in the basement and I was considering adding a second vent into the ducting. The theoretical question is whether it will be more efficient (read cheaper) to have the AC work a little harder by having a second duct in the basement in addition to the dehumidifier OR to just let the dehumidifier work by itself. |
Follow-Up Postings:
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| A/C is an expensive and unsatisfactory way to remove humidity throughout your home, especially in the "shoulder" seasons where you would not be normally using it. See page 6 of the linked Building America article below. I have always used stand-alone dehumidifiers in the basement to maintain healthy RH levels. Indeed, in the summer, I shut off and seal the a/c vents to the basement. |
Here is a link that might be useful: Conditioning Air in the Humid South
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- Posted by bus_driver (My Page) on Wed, Aug 18, 10 at 8:17
| If the basement is really to be conditioned, it must have both supply and return vents to the AC system. My basement has two dehumidifiers, controlled by separate wall-mounted humidistats and no AC system vents. My temperature ranges in the basement are low of 58 in the Winter and high of 78 in the Summer. |
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