Best Crawl Space Dehumidifier with Pump

In this article we talk about the unique challenges you face when trying to use a dehumidifier in your crawl space. People generally use dehumidifiers in their crawl space for the same reasons they use them in their basement, removing mold or excess moisture. However, there are additional situations to consider when trying to dehumidify your crawl space.

When you use a dehumidifier in your basement it’s fairly simple. There is at least one drain in every homes basement period this drain can easily take care of the water coming out of the dehumidifier if you decide to use a hose. The other option would be just to walk down to your basement and empty the water collection pan whenever it needs it.

Crawl spaces on the other hand are not so easy to get to. It would be very inconvenient to get into your crawl space everyday or every other day to empty the water collection pan. Also crawl spaces don’t have drain so you cannot use the dehumidifier hose. There is a solution and it is to use a dehumidifier with a built in pump.

Dehumidifiers with built-in pumps

Dehumidifiers with pumps can push the water up word. This means that if you have an opening near the top of your crawl space you can put the hose out the opening and still expect the water to be pumped out. This is a unique feature that you must have in any dehumidifier you plan to use in your crawl space.

Essential features

Additionally, you would also want your dehumidifier to be able to treat a large area. Most crawl spaces go underneath the entire house. Luckily most manufacturers that make dehumidifiers with built-in pumps put them on their higher-capacity dehumidifiers. We directed our research into dehumidifiers using these two features, a built in pump and high capacity, to narrow the field.

Other Considerations

We also considered how well-known the manufacturer’s brand is and their reputation for quality. This let us to pick the Frigidaire 70 pint dehumidifier with pump as the best dehumidifier for your crawl space. In the next part of this article we review the other features that really made the Frigidaire dehumidifier stand out from its competitors.

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Washable Filter

One of the first things that caught our eye was the fact that the air filter is washable. This is not a HEPA filter like you might expect from an air purifier. it’s only function is to keep large particles of dust and debris out of the dehumidifier. Because of this you can easily wash it and use it over. It is possible to damage the filter, so Frigidaire does make replacements. One downside is that you cannot use the filter until it is dry. The manufacturer also advises against using something like an electric hair dryer to speed up this drying process. Because of this some people will order a second filter when they purchase their dehumidifier. This means you can continuously run your dehumidifier without waiting for the filter to dry.

Dehumidifier Pump

The maximum rise and distance that the dehumidifier pump will work is 5 meters according to Frigidaire. This translates to just over 16 feet. if you use a hose longer than this it is possible to damage the pump. One thing to remember is that the water inside the hose has wait. As long as the hose is on an upward angle this water is pushing back against pump. The pump is only so strong and cannot move the water further without risking damage.

The dehumidifier hose should have a diameter of 11/16 of an inch. This is not the same size as a traditional garden hose. Dehumidifier hoses are widely available and do come in lengths of up to 16 feet.

Best Crawl Space Dehumidifier with Pump

Based on our research of the top dehumidifiers on the market we concluded that the Frigidaire 70 pint dehumidifier with built-in pump is the best dehumidifier to use in a crawl space.

Additional Reading

Check out these articles related to mold removal and dehumidifiers.

  1. https://www.unhumid.com/dehumidifier-vs-air-purifier-mold/ – In this article we compare dehumidifiers and air purifiers and their effectiveness for dealing with mold. Both of these air treatment appliances have the capability to help solve a mold problem.
  2. https://www.unhumid.com/best-dehumidifier-basement-mold/ – It can be hard to treat mold in your basement. Since there is less air circulation and generally cooler temperatures, it makes a good opportunity for pockets of moisture to build up. Things like mold and other fungi can take hold in these moist areas. Keeping your basement dry is an important part of removing and keeping mold out of your basement.

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