Dehumidifiers for Crawlspace


Mold and mildew are the worst “guests” that can make an appearance in your home, high humidity being the growing ground that favors their appearance. If you have a crawl space in your home, know that most likely it harbors mold and mildew because this environment is characterized by dangerous levels of humidity. Worst of all, even insects and termites might be attracted by the conditions in the crawlway, so it is more than necessary for you to handle lowering the humidity before it is too late. For this, you need a great performing dehumidifier like any of the models found in the following comparison, these models being the best choices that you can go with at the moment.

Top 9 Crawlspace Dehumidifiers Comparison

Image Products Price
Thermastor Santa Fe Compact 2

Our Choice

1. Thermastor Santa Fe Compact 2

  • Removes up to 70 pints of moisture per day
  • Recommended for areas of up to 1,600 square feet
  • Low-temperature operation – 40 degrees Fahrenheit
  • No built-in humidistat
  • Integrated pump to automatically drain moisture
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Dri-Eaz F413 Revolution

2. Dri-Eaz F413 Revolution

  • Removes up to 80 pints of moisture per day
  • Recommended for areas of up to 7,000 square feet
  • No automatic defrost for low-temperature operation
  • Built-in humidistat that automatically turns on and off to save energy
  • Integrated pump to automatically drain moisture
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Ebac CD30E

3. Ebac CD30E

  • Removes up to 17 pints of moisture per day
  • Recommended for areas of up to 1,000 square feet
  • Low-temperature operation – 33 degrees Fahrenheit
  • Built-in humidistat that automatically turns on and off to save energy
  • Integrated pump to automatically drain moisture
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Dri-Eaz F515 PHD 200

4. Dri-Eaz F515 PHD 200

  • High moisture removal rate – up to 75 pints per day
  • Perfectly suited for spaces up to 600 square feet in size
  • Can operate when the environmental temperature is as low as 45 degrees Fahrenheit
  • You can select the desired humidity level for the area with the help of the humidistat
  • Automatic pump-out endorses a hassle-free, continuous operation
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AlorAir Sentinel HDi90

5. AlorAir Sentinel HDi90

  • Removes up to 90 pints of moisture per day
  • Recommended for areas of up to 2,600 square feet
  • Low-temperature operation – 34 degrees Fahrenheit
  • Built-in humidistat that automatically turns on and off to save energy
  • Integrated pump to automatically drain moisture
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Aprilaire 1830

6. Aprilaire 1830

  • Removes up to 70 pints of moisture per day
  • Recommended for use in spaces of up to 2200 square feet
  • Can operate in low temperature environments without consequences
  • You can choose the humidity level to be reached indoors
  • Continuous operation granted by its built-in drain
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Fral FDK70

7. Fral FDK70

  • Able to remove approximately 104 pints of moisture per day
  • Dries areas up to 2000 square feet
  • Low temperature operation
  • Can be set up for continuous drainage
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HORIZON TITAN XG 60

8. HORIZON TITAN XG 60

  • Removes up to 60-120 pints of moisture per day
  • Recommended for areas of up to 400 square feet
  • Low-temperature operation – 33 degrees Fahrenheit
  • No integrated pump to automatically drain moisture
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Fral FDK54

9. Fral FDK54

  • Eliminates up to 10 gallons of moisture from the air each day
  • Designed to be used for spaces of up to 1600 square feet
  • Can operate when temperatures are as low as 33 degrees F
  • Features digital humidistat that displays important info regarding air quality
  • Allows you to opt for continuous drainage
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Crawlway Moisture Removal Devices Reviews

Thermastor Santa Fe Compact 2

The incredibly small footprint of this model allows you to install it in low crawlways with ease. It is 12″ wide and 12″ tall, it can fit in places where other dehumidifiers do not fit so you can use it anywhere you need. It can remove moisture from rooms up to 1,600 feet large and it provides superior air filtration. To facilitate the installation, you can separately purchase the optional hang kit, condensate pump, and duct kits. The adjustable humidity control allows you to set the relative humidity as you like, within +/- 5% of the setpoint. Since it is designed to operate in basements, crawlspaces, or garages where the temperatures often drop very low, the defrost thermostat that it comes with prevents any internal damage caused by excessive frost that might form in it. To ensure optimal performance, it features an Auto Restart that resumes the moisture absorption in case the power runs out.

What We Like What We Dislike
⇒Integrated vertical/horizontal exhaust outlets
⇒Automatic restart after power outage
⇒Ducting options for divided spaces
⇒Energy Star certified
VERDICT

As it can perfectly withstand operating in low temperatures of -40 degrees Fahrenheit, it is one of the most reliable devices. Easy to install and use, and coming at a reasonable price considering its capabilities, this is our top recommendation to anyone in need.

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Dri-Eaz F413 Revolution

It boasts an impressive air movement that ranges between 206-306 CFM. It can handle rooms as large as 7,000 sq. ft., which is impressive, to say the least. It is ETL listed to CSA standards, so you can rest assured that it is safe to use. To prove it, we can tell you that it features an automatic restart that turns it back on from where it was at the moment of a power outage, and it includes a built-in pump that throws away the water it collects from the air. What makes it such a great option to go with is the fact that it delivers a hard-to-top performance while remaining incredibly easy to operate. In addition, the construction of this model ensures that it is specifically designed for water damage restoration.

What We Like What We Dislike
⇒ Superior low-grain performance
⇒ Compact design makes it a perfect fit for the crawlway
⇒ Stackable and easy to transport
⇒ Durable and rugged rotomolded housing
VERDICT

If a wide area coverage is what you need, then this Dri-Eaz entry is the right choice to go with as it can handle removing excess moisture in areas of up to 7000 square feet. Furthermore, as it eliminates up to 80 pints of moisture per day, it is sure to reduce humidity at a healthy level in no time.

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Ebac CD30E

It is extremely durable due to its quality construction and it performs faithfully throughout the years. It is best to place it in rooms no bigger than 1000 sq. ft. if you want to obtain the desired performance. In humidity levels of 80% and temperatures no higher than 80F, it can absorb around 17 pints of water per day and thanks to the built-in pump, the water will drain freely out of it. This will prevent any spillage and accidents. The Hot Gas defrosting feature that it comes with automatically melts the frost build-up to provide a constant operation even when there are low ambient temperatures. The Hours Run Meter feature offers an accurate runtime measuring while the adjustable alarm humidistat allows you to set the humidity level you want to achieve. In addition, it comes with a useful wall mounting bracket and it features convenient carrying handles.

What We Like What We Dislike
⇒Adjustable alarm humidistat ⇒Some customers have complained about its durability
⇒Electronic defrost timer
⇒Sound pressure level 47 dB(A)
⇒Durable all steel construction
VERDICT

As it features a built-in humidistat which endorses convenient use, and it is capable of operating in areas of up to 1000 square feet, it makes for a perfect choice. Furthermore, it comes with an integrated pump which eliminates a good portion of maintenance work, allowing you to enjoy more free time.

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Dri-Eaz F515 PHD 200

There are countless aspects to praise when it comes to this dehumidifying device, and we will start off with its compact size. It measures only 17.6 inches in height, 22 inches in length, and 12.5 inches in width, and it weighs a mere 65 pounds, so placing it in the hard to reach space is not a big issue. It can operate without problems as long as the temperature does not run lower than 45 degrees Fahrenheit, or higher than 100 degrees Fahrenheit. The mesh air filter it features ensures that not only will humidity drop to healthy areas, but that harmful contaminants will be removed from the air as well. It produces a maximum of 60 decibels when it runs, so it is unlikely for its operation to ever bother you. furthermore, it is Energy Star rated for its low energy consumption during use..

What We Like What We Dislike
⇒Mesh air filter ensures that even the impurities lurking in the air will be handled and removed by the dehumidification device ⇒On the expensive side – not the most affordable selection to go for
⇒When operating, it produces less than 60 decibels
⇒180 maximum cubic feet per minute rating
⇒Energy Star certification proves this is a low energy consumption product
VERDICT

It might not be the most attractive selection when it comes to pricing, but this Dri-Eaz product is still worth taking a second glance at as it delivers exactly what it promises – that it will lower humidity levels considerably, making the space you live or work in a truly healthy and safe environment to be in.

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AlorAir Sentinel HDi90

This model is specifically designed for crawlways and basements measuring 2,600 sq. ft. and it is powerful enough to collect 90 pints of water in 24 hours. It boasts an air flow rating of 310 CFM – 530 CFM. It comes with ducting options for divided spaces, a fact that increases its versatility and functionality. The Hot Gas defrosting system that it features ensures a quick and efficient clearing of the ice from the coil when there are low operating temperatures. It has a power consumption of only 5.5 amps per day. In addition, the epoxy-coated coils provide protection in corrosive environments, maintaining the heat transfer ability of the coil over its entire lifespan. Among its most important features, we must mention the humidistat and the timer that allow you to customize its operation. You must also know that it comes with a water full protection that prevents water spillage.

What We Like What We Dislike
⇒Condensate pump draining ⇒On the expensive side
⇒Quick access to pump and main board
⇒Sound pressure level 55 dB(A)
⇒Energy Star certified
VERDICT

If you have really high humidity issues, this is the right device as it can remove up to 90 pints of moisture per day. Best of all, it can withstand operating in temperatures as low as -33 degrees Fahrenheit, so you can confidently rely on it regardless of how harsh the environment is where you intend to place it.

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Aprilaire 1830

The 1830 model is able to remove up to 70 pints of moisture from the air per day, but there are two other options which can suit greater needs, both products being manufactured by Aprilaire, one of the products being able to eliminate up to 95 pints of moisture, while the other one removes up to 130 pints. However, do note that they come at higher prices. The 1830 makes an appearance in our top not only due to its high efficiency in terms of humidity control, but due to the fact that it is easy to use and quite feature-rich. It allows you to set the humidity level to be reached, and when moisture exceeds that precise level, it automatically starts functioning to keep the situation under control. It features an interactive display that makes it quite user-friendly. It is almost maintenance-free as you will only be required to tend to filter cleaning or replacement once per year. Furthermore, the manufacturing company backs it for 5 years.

What We Like What We Dislike
⇒ User-friendly interface granted by the interactive display it features ⇒ One of the more expensive entries on the market
⇒ Compact design makes it a perfect fit wherever you want to place it
⇒ Almost maintenance-free – you are only required to clean or replace the filter once per year
⇒ There are other two dehumidification capacity size options to choose between
VERDICT

A hassle-free dehumidifier that will make all of your worries regarding the potential appearance of mold disappear by maintaining a healthy humidity level of your choice, the Aprilaire is one of the best selections you could go for. Sure, it might come at a bit of an expensive price, but seeing the performance it delivers, it’s safe to say that it is worth every cent.

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Fral FDK70

With a capacity to remove as much as 104 pints or 13 gallons of moisture from the air each day, this Fral entry is your go-to option if you want to cover a wide and damp area. It is intended for use in spaces of up to 2000 square feet, so it is indeed perfect for crawlspaces or even basements. It can withstand operating in low temperature conditions, its internal components not being damaged by ice all that easily. It measures 21 inches in width, 20 inches in height, and 25 inches in depth, and it weighs 110 pounds, so it’s best that you find a permanent spot to place it. It’s low on energy consumption ans it stays quiet while it operates. In addition, the manufacturer provides a 5-year warranty on parts and labor, so you won’t have to spend a buck on repair or replacement procedures while the warranty is active.

What We Like What We Dislike
⇒Low power consumption – rated at 650 watts ⇒Comes at a spicy price that might be out of your range
⇒Boasts a quiet operation which ensures it won’t be a nuisance – only 46 decibels
⇒Compact design – measures 21 inches in width, 25 inches in depth, and 20 inches in height
⇒Backed with a 5-year warranty
VERDICT

Although there are plenty of other selections to go for, if you need a moisture removal device for a 2000 square feet area, this Fral entry is your go-to choice. It’s compact, comes with a great warranty, and can remove up to 104 pints of moisture per day, so there is no need to doubt its performance.

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HORIZON TITAN XG 60

For smaller spaces, you could use a more compact moisture removal device with an equally satisfying performance as the larger previous models. Therefore, this one could be an excellent choice for you that can handle humidity levels of 95% without any effort. The machine can absorb moisture from spaces measuring 400 sq. ft. and it can collect 60 pints per day if the humidity is at a maximum of 60% or 120 pints per day in humidities of 90%. Unfortunately, it does not include an integrated pump that would evacuate moisture at a higher point, it only comes with a hose that can throw water at ground level. Among the features of the HORIZON TITAN XG 60, we mention the washable filter, the 52dB quiet operation, and the digital control that makes it very easy to use.

What We Like What We Dislike
⇒Built in washable screen filter ⇒Not the best feedback in terms of durability
⇒Digital control panel for intuitive use
⇒Sound pressure level 52 dB(A)
⇒Energy Star certified operation
VERDICT

Although it does not boast the best area coverage out there, what no one can deny regarding the operation of the Horizon is the fact that it is able to remove up to 120 pints of moisture per day when it is placed in a highly humid space. Overall, its performance is undeniable in terms of quality, so we recommend you purchase it.

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Fral FDK54

One of the more reasonably priced options on this market, the FDK54 from Fral will undoubtedly fit perfectly in any crawl space. Able to operate even in improper conditions as it can withstand temperatures as low as 33 degrees Fahrenheit, this is a moisture removal device you cannot go wrong with. Over a 24-hour period, it actually removes as much as 10 gallons of moisture from the air, so a significant increase in air quality will be noticeable in a matter of days. Obviously, we cannot overlook its great area coverage of 1600 square feet which recommends it for use in larger spaces. Although it really packs a punch, it is quite silent when operating, which is a major plus. Furthermore, it features a digital humidistat that you can set in 1% increments to program what humidity level you desire the indoor space to reach.

What We Like What We Dislike
⇒Energy Star certified for its superior efficiency in terms of energy consumption ⇒Can be over your budget
⇒Lightweight – weighs only 68 pounds, making it easy for you to install it
⇒Backed by a 5-year warranty
⇒Consumes only 510W when operating
VERDICT

Although it is not the cheapest product in this niche, Fral is still an investment worth making considering that it can remove up to 10 gallons of moisture per day. Furthermore, it boasts a hassle-free use due to the digital humidistat it comes with.

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Do You Really Need One?

Everybody knows that crawlspaces are extremely damp, even if they should not be. Moisture can lead to dangerous mold growth that will affect your health and it can damage the supporting structure as well. In most cases, even a well-insulated space can become a home for mold and mildew and that is a dangerous situation that should be solved immediately. The worst part is that chances are you will notice the moisture problem when it has already affected your house in a serious matter. That is why a dehumidifier is in demand for keeping moisture under control.

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Advantages of Crawlway Dehumidification

Given the narrow design, these spaces require a special type of dehumidifier that will fit and will be powerful enough to absorb all the air humidity. While basement or industrial models can be too big and bulky for the space available and the regular room units are not powerful enough, the crawlway moisture removal device is a perfect choice. Most moisture removal devices are compact, rugged and will be able to retain mold from affecting the walls of your home, thus, damaging its structure.

In addition, they will also protect your health. In fact, it is important to know that what is hidden in your crawlway will eventually end up in your home. We all know that our homes are filled with invisible mold spores that float through the air. You might think that it is a long way to your bedroom, but mold spores travel very fast and it won’t be long until they will reach your entire house. These tiny particles are the main cause of allergies and other health issues. However, in order to prevent these problems, it is recommended to install a quality moisture removal device in your encapsulated crawlspace. As mentioned before, by installing such a device, you can improve the air quality in your home. Plus, by controlling moisture you can reduce or prevents symptoms of allergies, such as eye irritation, headaches, and respiratory problems, as well.

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Crawlway vs. Basement Dehumidification Devices

Once you start seeing mold signs in your house, you must take immediate action and invest in a dehumidifier that can deal with large areas like the crawlway. At a closer look at the market, you will notice that there are two types that are advertised to work in both basements and crawlways. These two types are very similar and you can count on each one of them, considering that they are very much alike.

They are pretty much the same size, being designed for large areas like cellars, garages, crawlspaces, and basements. Also, they have a high absorbing power that enables them to deal with excessive humidity cases.

In addition, you must make sure that the one you choose can operate in low temperatures so a defrost feature is mandatory. Also, take into account that you will hardly reach it to empty the tank so it is best to go with a model with a pump that evacuates the moisture on its own. The only noticeable difference between the two types is the shape, more exactly the horizontal position of the device. This one must be shorter in order to fit shorter areas but this is only required if your crawlway is very small in height. Otherwise, you can go with a basement unit without any worries.

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Finding a dehumidification device is not necessarily the easiest thing to do as the market for these products is filled with many “duds”. To make sure that you won’t end up spending your cash on a dehumidifier that won’t actually deliver the performance it promises, we recommend you check the comparison table at the beginning of our article once again and make a pick from the ones we put at your disposal as these products are all tested and guaranteed to work great.

Let us review some of them once again. The Thermastor Santa Fe Compact 2 ranks first as it can handle reducing air moisture in spaces of up to 1600 square feet. Furthermore, it can work even when the environment is extremely cold, and it comes with an integrated pump which makes operating it a lot more convenient as the moisture is automatically drained. If our first pick is a bit too spicy for your budget, however, we recommend you opt for the Fral FDK54 as it not only comes at a cheap price, but it provides a generous performance in terms of moisture removal, eliminating up to 10 gallons of excess humidity from the air per day.

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F.A.Q.

If I already have mold in the crawlspace, how should I proceed with the installation of the dehumidifier?

In case mold has already made an appearance, you first have to remove it, and then install the dehumidifier. The role of this device is to maintain proper humidity levels by removing excess moisture, so it is intended for upkeep, not for the elimination of pre-existing mold.

Will the appliance prevent mold from being a reoccurring issue?

Yes, as aforementioned, the role of the moisture removing appliance is to prevent the apparition of mold by maintaining proper humidity levels. If you eliminate the pre-existing mold and install the dehumidification device, this issue will not reoccur ever again.

Is it important to look into the noise output of the moisture removing appliance?

Considering you most probably live in an adjacent room to the crawlspace, yes, it is important to look into the noise output of the device. If it is near rooms like your home office, bedroom, the nursery, or living room, you will be inevitably bothered by the noise output of the appliance. For the moisture removing device to not present a nuisance, we recommend you go for a model which produces less than 60 dB when it runs.

How much moisture should the appliance remove per day?

The question to this answer strictly depends on your specific needs. There is no way to say that a certain capacity dehumidifier is more appropriate for you without checking how severe your humidity problems are first. However, if we were to give you a piece of advice, we would recommend you go for one that is capable of removing at least 50 pints of moisture per day as it is indicated to go for bigger rather than smaller from this point of view.

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