How fast show a dehumidfier dry a basement....

chris0831July 25, 2013

Greetings all.....

I have had a moisture problem in my basement like.....forever. Recently I took measures to get the water away from the walls during a storm event, but like most basements, it's quite humid.

I bought a AprilAire dehumidifier that is "suppose" to be capable of removing 90 pints a day. I placed it at the far end of the basement where the problem is at it's worst...walls and floor are damp. The RH started out at 90% at approximately 72 degrees. The other end of the basement was at 88% at about 72 degrees. After running continuously for 24 hours, the end where the dehumidifier is at 75% and 75 degrees and the other end is at 84% at 72 degrees. The basement is about 2500 sq feet and is unfinished and a fairly open design.

Does that sound reasonable? Any input would be appreciated. Thanks!

Thank you for reporting this comment. Undo

It took almost 2 years of nearly non-stop running to get my basement from 75% down to 50%. Now the units rarely run. So be patient. And don't hesitate to empty the bucket whenever you are near the unit, even if the bucket is not full at that moment. When the bucket is full the unit is not running and is "falling behind".

    Bookmark   July 25, 2013 at 7:24PM
Thank you for reporting this comment. Undo

Thank you for taking the time and effort to respond. I figured it would take longer to to get the moisture out of the walls and wood then it did to initially draw it our of the air. I don't have a bucket, it's draining directly into the sump well, so I don't have to worry about that. It's continuing to fall slowly.....

    Bookmark   July 26, 2013 at 6:35AM
Thank you for reporting this comment. Undo

There's a constant inflow of moisture into your basement through the walls and floors, so it's not just a matter of getting the moisture out and you're done. It's a continuous job.

Ideally, the RH should be 50% or less.

Controlling moisture at its source would greatly reduce dehumidification costs. That would include sealing the basement from the exterior, keeping all windows and vents closed during high-humidity seasons and adding semi-permeable or impermeable insulation on the exterior walls and the basement floor.

    Bookmark   July 26, 2013 at 10:34AM
Sign Up to comment
More Discussions
Basement wall insulation
Hello, I live in a 1952 English bungalow in Chicago...
Walkout Basement in Texas
Greetings to all! I have a sloping lot on Lake Conroe...
Replacing Steel Column With Stud Wall?
I am interested in replacing a steel column with a...
How to re-do the stairs for my basement remodel
So I'm undergoing a simple remodel of a small basement....
Walk-out basement design
Building a house in western Massachusetts -- it will...
Sponsored Products
Odyssey Backless Cape Cod Bar Stool - 24 in. Multicolor - OCCS
$513.99 | Hayneedle
Trilogy Triangle Bar Height Pub Table Multicolor - TRI44-42
Light My Shed III White 18 1/2" Wide Solar Shed Light
$99.00 | Lamps Plus
Trilogy Bar Height Pub Stool Multicolor - TRIS-36
$532.99 | Hayneedle
Pulsar Ceiling Lamp Chrome
Suncast 125 ft. Hydro Power Auto Rewind Hose Reel - RSH125D
$144.99 | Hayneedle
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™