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timchi29 11-13-2008 09:54 PM

High humidity for how long?????
I got a concrete floor poured in my crawl space 2 weeks ago and I have installed a 65 pint dehumidifier to keep down the humidity. I have it set at 45% and the unit runs non stop since it says that it is 55% down there. Is it safe to assume that the reason that is can't get lower than 55% is due to the concrete. The unit is rated for 2500ft2 in wet conditions so this thing should be able to keep up, right?

Maintenance 6 11-14-2008 08:01 AM

Why would you need to go lower than 55% in a crawl space? You are well under the level where any kind of mold will grow and you will probably never reach a level lower than the outside humidity.

timchi29 11-14-2008 07:43 PM

Thanks. I was setting at 45% just to be safe. Turns out that I think that the sensor on the dehumidifier is bad. I put a digital and dial meter down there and it turns out that is it is less humid than the dehumidifier says. The DH will say 65% and I go check on it 30 minutes later and it will say 45 or 50 and then 65 again. I am returning and getting a new one.

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