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  1. #27
    Join Date
    Feb 2019
    Posts
    13
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    Thread Starter
    Quote Originally Posted by teddy bear View Post
    To confirm that the dehu is functioning, measure the condensate from the dehu for an hour. Your unit should remove 2-3 lbs./pints per hour.
    Also measure the temp/%RH of the dehu supply verses the air going into the return. This will confirm the amount of moisture being removed by comparing the dew point in and out.
    As others pointed out, any air from the home passing through the crawlspace will benefit from the dehumidifier.
    It takes a couple weeks to dry down the materials in the crawlspace. During windy damp weather, the dehu may run 50%-75% of the time. After dry down and when the outdoor dew points are below the dew point desired in the crawlspace, the dehu should run much less.
    A 68^F, 50%RH crawlspace is 49^F. Consider that outside vary from 60^F-75^F. During cold weather, the outdoor dew is much lower, usually equal to the evening low temperatures, but the crawlspace is cooler and may still have a small dehumidifier load.
    Someday when the dehu fails consider the Santa Fe Compact, my favorite. The unit you have should be large enough to do the job. Keeping your crawlspace dry will help keep your home dry!

    Keep us posted.
    Regards Teddy Bear
    Thanks for all of this info. You mention the Santa Fe Compact but do you have any experience with the Aprilaire units? If so? What do you think of them?

  2. #28
    Join Date
    Sep 2005
    Location
    Atlanta GA area
    Posts
    39,837
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    The SanteFe's are more like Mercedes...
    Other brands are Fords and Chevy's...
    Grin!

    One gets what they pay for.

    Above all... avoid the big box store portables... they are junk, do not work well, use too much electricity, and rarely last more than 2-3-4 years.
    GA-HVAC-Tech

    Your comfort, Your way, Everyday!

  3. #29
    Join Date
    Jun 2003
    Location
    Madison, WI/Cape Coral, FL
    Posts
    9,290
    Post Likes
    The dehu you have should do the job if it is functioning properly. Measure the condensate output for an hour along with the temp/%RH of input and output. Expect 2- 3 lbs. per hour of condensate. If less, the unit may need service.
    As long as it functions, I would use it. When it comes time for replacement, consider the Santa Fe.
    Keep us posted.
    Regards Teddy Bear
    Bear Rules: Keep our home <50% RH summer, controls mites/mold and very comfortable.
    Provide 60-100 cfm of fresh air when occupied to purge indoor pollutants and keep window dry during cold weather. T-stat setup/setback +8 hrs. saves energy
    Use +Merv 10 air filter. -Don't forget the "Golden Rule"

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