Do I need a dehumidifier for my crawl space?

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Old 09-22-18, 05:57 AM
J
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Do I need a dehumidifier for my crawl space?

Just moved from dry Colorado high country to the North Carolina shore. Wow, all the humidity. Our house is 20 years old, 1900 sq ft, on a crawl space. It was relatively dry before the Florence hurricane. The sandy ground under the plastic was not wet to my feel. There were only a few slightly damp spots on top of the plastic, maybe three at about 3” in diameter. Now after Florence the sand is saturated but the plastic above is still pretty dry. There are about 6 louvered vents around the perimeter and an exhaust fan mounted in the access door. It was not activated. Guessing because last winter was unusually cold here and the previous owner probably turned it off and never started it again.

Should I just run the exhaust fan and stop worrying or should I get a crawl space dehumidifier? The one story house has central air which works fine. I think it still feels a bit humid inside and was researching dehumidifiers when I read about dehumidifiers for the crawl space.

Advice please.
 
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Old 09-22-18, 06:00 AM
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IMHO and from your description I would just run that fan and see how it works.
 
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Old 09-22-18, 12:25 PM
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It's pointless to run a dehumidifier if the space is open to the outside.
 
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