Most powerful crawl space dehumidifier

Crawl Spaces and DeHumidifiers. Why it’s important to take care of.

High humidity in your crawl space can often lead to unwanted consequences. The enclosed environment is usually poorly ventilated, and that increases the risk of contamination affecting the air quality throughout your whole home. This is why the task of looking for the best crawl space dehumidifier should be at the top of your list.

The addition of a good crawl space dehumidifier makes it easy for you to deal with many humidity-related problems. This device assists in removing excessive moisture from the air and also maintains the right humidity level.

Crawl spaces are usually used to provide access to plumbing, electrical wiring, heating, and cooling systems, or storing, so maintaining their temperature and proper humidity is necessary. 

What if your crawl space or basement has high levels of humidity? Everything in your crawl space or basement will get spoiled! The air in your home comes from the crawl space, and a dehumidifier makes it cool and provides your family with comfortable living. The cool air also helps regulate the proper temperature of your home and, in return, saves energy. 

Although there are hundreds of humidity suckers available in the market but unfortunately, finding the best one for your crawl space is challenging. Systems are designed according to different areas of your home. Our experts have reviewed the top 9 outstanding humidity suckers for you; let’s look at them. By the end of this article, you will be able to make an informed decision about your next dehumidifier.

Comparison Table Of Our Top Picks

Aprilaire – 1850Z 1850 Pro DehumidifierRemoves up to 95 pints of water per day Covers up to 5,200 sq. Ft. Compact design Quick installation
ALORAIR Basement/Crawl Space DehumidifiersRemoves up to 55 pints of water per day Covers up to 1,300 sq. Ft. Has automatic defrostBest for modern home
AlorAir Commercial Dehumidifier 113 PinRemoves up to 113 of water per dayUp to 1,200 sq.ft.Low energy consumptionSuper convenient
ALORAIR Basement/Crawlspace Dehumidifiers 90 PintsRemoves 90 pints of water per day Covers up to 2,600 sq. ft. Easy filter access Remote control
Waykar 130 Pints Commercial DehumidifierRemoves up 130 pints of water per day, Covers up to 6,000 sq. Ft. Intelligent control Continuous drainage
BaseAire Energy Star DehumidifierRemoves up 130 pints of water per day, Covers up to 6,000 sq. Ft. Intelligent control Continuous drainage
ALORAIR LGR 180 Pint Commercial DehumidifierRemoves up to 120 pints of water per day Covers up to 1,300 sq. ft. Highly durable Auto operation
Ivation Energy Star DehumidifierRemoves up to 50 pints of water per day Covers up to 4,500 sq. ft. Excellent performanceBuilt-in humidity sensor 
Waykar 155 Pint Commercial DehumidifierRemoves up to 155 pints of water per day Covers up to 6500 sq. Ft. Reasonable price Auto defrost

Aprilaire 1850Z Pro Dehumidifier, 95 Pint Commercial Dehumidifier for Crawl Spaces, Basements, Whole Homes up to 5,200 sq. ft.

[amazon box=”B01BM659ZG”]

Why we love it?

  • Compact design
  • Easy to use
  • Requires less maintenance
  • Quick installation
  • Durable and anti-corrosive

Keep in mind:

  • Not remote control
  • No built-in pump

If you are looking for a low-maintenance dehumidifier, then Aprilaire is an excellent choice. You don’t have to worry about emptying the trays or reservoirs as they keep on draining continuously. If you have less or tight crawl space, then choose a rectangular shape as it fits perfectly. Thanks to its compact size that fits conveniently. 

You can dry up your house effortlessly by using this incredible machine. It effectively covers almost 2800 square feet and can remove nearly 33 liters of water in a day. In addition, this sucker knows how to balance the moisture in the air, thus reduces any chances of unwanted consequences. You can easily access the setting and all information through the front-mounted control panel. 

Experts specially build its corrosion-resistant aluminum coils, and this makes it highly durable. This dehumidifier will keep the relative humidity below 60%, so the chances of virus survival are minimal, ultimately reducing allergies and asthma. You have to set it and forget; it will automatically start its function when the humidity goes above.

ALORAIR Basement/Crawl Space Dehumidifiers Removal 120 PPD (Saturation), 55 Pint Commercial Dehumidifier

[amazon box=”B01LWA8J37″]

Why we love it?

  • Easy to assemble
  • No leakage
  • Remote control
  • Durable design
  • Easy filter access
  • Has 5 years of warranty

Keep in mind: 

  • No emergency shut off

The AlorAir is considered one of the best crawl space dehumidifiers because of several reasons. Other than being small in size, it also has excellent reliability. Moreover, advanced defrosting makes it ideal for the cold climate as it doesn’t have a disruption while defrosting. 

This machine ensures to maintain a perfect balance between budget and performance. You will love this humidity sucker as it is remote control and offers you extra comfort. It has the ability to cover 1300 square feet and removes almost 26 liters of moisture per day. 

The epoxy coating and internal anti-corrosive protection make this machine much more durable. 

While working, this dehumidifier makes minimum noise. Unlike conventional dehumidifiers, it will quickly remove moisture by utilizing the least energy and saves your energy bill. This professional sucker is designed especially for modern homes and has all the manual and automatic features you are looking for. 

AlorAir Commercial Dehumidifier 113 Pint, with Drain Hose for Crawl Spaces, Basements, Industry Water Damage Unit

[amazon box=”B08N6C4GPP”]

Why we love it?

  • Maintains humidity
  • Optional remote control
  • Super convenient
  • Compact design
  • Auto defrosting system

Keep in mind:

  • Doesn’t remove water as claimed capacity

This is another fantastic humidity sucker by AlorAir specially designed for your basement, industry, and crawl spaces. To reduce odor and minimize moisture, you can easily adjust to the ideal humidity setting. In addition, it has the ability to lower the humidity level to a comfortable level within a very short interval. 

Furthermore, the metal outer casing ensures stable condition, withstand rugged condition, and is super easy to maintain. Unlike typical domestic dehumidifiers, you don’t have to drain it yourself as it comes without a tank and pours automatically; this makes its usage super easy. 

The auto defrosting system in it enables unit work effectively and continuously without any disruption. It works amazingly even at low temperatures and utilizes the least energy. Further, its compact and smaller design will allow you to transport it easily from one place to another. This machine is an excellent choice for residential, commercial, and industrial use because of its intelligent and continuous operation. 

AlorAir Basement/Crawlspace Dehumidifiers 198 PPD (Saturation),
90 Pints

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Why we love it?

  • Excellent performance
  • Quiet in function
  • Easily portable
  • Has outstanding capacity
  • Five-year warranty
  • Remote control

Keep in mind:

  • The pump installed in it isn’t very secure. 

If your crawl space has a very humid surface, choosing this 90-pint humidity sucker is an excellent option. Your area will remain completely moisture-free as it will remove almost 90 pints of moisture per day. This unit works perfectly up to 2600 square feet and can remove 94 liters per day. 

You can easily rely on this dehumidifier to work well even at low temperatures as it features auto-defrosting protection. The Hot Gas Valve system enables this machine to operate for a long time. You don’t have to worry about oxidation as the corrosion protective internal will keep it safe. 

Without even touching the unit, you can efficiently operate it through the remote control. Although it is not completely quiet, it doesn’t make disturbing vibrations. The protected coils, built-in pump, and adjustable wheels make it an ideal choice. 

Waykar 130 Pints Commercial Dehumidifier, with Drain Hose for Home Basements Whole house

[amazon box=”B089LPTXLJ”]

Why we love it?

  • Portable design
  • Good for large space
  • Has intelligent control
  • Reasonable price

Keep in mind:

  • Reservoir fills up quickly

The Wayker commercial dehumidifier is one of the best crawl space dehumidifiers as it comes with a high-efficiency compressor. You can use this easily in your basement, workshop, crawl space, small factory, garage, etc. This machine has a modern and sleek design that allows you to move it quickly. 

It has intelligent sensors that smartly senses humidity level and adjust to ideal moisture setting. This machine operates automatically and shuts off when humidity is ideal while restarting when humidity is above. As a result, it can easily remove almost 130 pints per day. 

It has both a continuous and manual drainage system, which means that if you connect the hose with it, this will keep on draining continuously by gravity. However, when the tank reaches 5L, it will show an indicator and will stop working until it is emptied with the manual system.

BaseAire AirWerx55 Energy Star Dehumidifier for Crawl Space Basement, 120 Pints Commercial Dehumidifier with Continuous Drain Hose

[amazon box=”B07M7S8QX4″]

Why we love it?

  • Easy to use
  • Hassle-free operation
  • Intelligent humidity control
  • Removes a large amount of water
  • Optional remote control

Keep in mind:

  • Must be installed elevated

The BaseAir humidity sucker has the ability to dehumidify the damp places up to 1300 square feet and remove almost seven gallons of water per day. Unfortunately, one of the most common problems in dehumidifiers is leakage and corrosion; fortunately, this machine has epoxy-coating coils that minimize the chances of these issues. 

Whether you want to remove excess moisture from your crawl space, garage, or basement, you can always rely on BaseAir. It also ensures maintaining hygiene as it catches the large airborne particles through the filter installed in it. You can quickly install this lightweight machine, and it can also be connected to the remote control. 

This smart humidifier will automatically start working when moisture goes above and stops when it is ideal. Its built-in handles allow you to carry it easily from one place to another. You don’t have to pay much attention to it as it comes without a pump and drains itself automatically.  

AlorAir LGR 180 Pint Commercial Dehumidifier with Pump

[amazon box=”B07P98YKDW”]

Why we love it?

  • Waterproof design
  • Has built-in timer
  • Excellent performance
  • Durable coils
  • Long power cord
  • Comes with an LED display

Keep in mind:

  • Not quiet
  • Limited warranty

No matter whatever the condition is, the AlorAir LGR promises to dry up your crawl space perfectly. Its design even performs its function effectively in the worst situation, such as a flood. Surprisingly, you can even put this machine in the water, and its circuit will remain safe and sound.

You can easily carry this portable dehumidifier anywhere you want. It can remove almost 90 liters of water per day. It operates at a temperature range of 33-105 °F. This crawl space dehumidifier has a small digital display that gives you all information about the inlet and outlet. 

It comes with a timer, digital humidistat control, and a condensate pump. The high-density filters installed in it protect it from dust as they ensure proper airflow circulation and keep efficient operation. 

Ivation Dehumidifier with Pump – Large Capacity Compressor for Spaces Up To 4,500 Sq Ft

[amazon box=”B06Y13G5TR”]

Why we love it?

  • Has two fan speeds
  • Energy efficient
  • Comes with an LED interface
  • Easy to operate
  • Washable and reusable filters

Keep in mind:

  • Loud operation

Its users most love the Ivation Energy star dehumidifier because of its fantastic performance. You can easily place this machine in your bedroom, living area, basements, and crawl space. It has the capacity to cover almost up to 3000 square feet area. The design of the machine is super smooth, and it also has rolling wheels that make it portability easy.

You will get all the unique features in this humidity sucker, including low maintenance, built-in pump, convenience to use, easy operation, long drain hose, and high-quality construction. In addition, the compressor installed helps remove the excess air, allergens, or foul odor from your house. 

The bright LED helps in informing you about the timer, fan speed, and filter alert. You can easily set the ideal humidity level for 24 hours, and it will run automatically without any assistance. Also, the auto-defrost function prevents the internal structure from damaging during temperature fluctuation. 

Waykar 155 Pint Commercial Dehumidifier for Crawl Spaces, Basements & Whole Homes

[amazon box=”B06Y13G5TR”]

Why we love it?

  • Remote display
  • Amazing design
  • Auto defrost
  • Large capacity

Keep in mind:

  • Drain less humidity than claimed

In our list of top outstanding humidity suckers, our last pick is Waykar, and it is specially designed for everyone who wants good value at a reasonable price. This commercial dehumidifier has a large capacity to remove up to 155 pints of water per day. This machine offers you all the great features in less price. 

It is thoughtfully designed according to the need of the user. It has a removable controller with a humidity sensor and wire that is perfect for large space areas. You can easily hang this or lay it anywhere you want to. Its auto defrost function allows you to use this in a cold environment. 

You can control the humidity level by adjusting the ideal level once, and your machine will operate accordingly. In addition, the automatic shut on/off makes its usage very easy for the user. 

How To Choose The Best Crawl Space Dehumidifier

All of us want our products to stay with us for a long time, for this, we need to make a careful and wise decision. So here are some essential features that you should always consider while buying a humidity sucker for your crawl space. Let’s have a look at them!

Humidity Removal


Usually, a machine that can remove almost 70 pints of water per day is good enough, but if you have a large area, you must go for a device that withstands 90 pints per day. 

Automatic on/off

Some of the advanced humidity suckers have this feature of automatic on and off. You just have to set the ideal moisture setting, and the machine will detect the humidity level of space with its intelligent sensors. It will start operating as the level goes above the perfect limit and shuts down when the desired level is reached. This feature makes the machine much easier to use, and you don’t have to visit your basement frequently. 


While buying a crawl space humidity sucker, it is essential to notice an efficient and continuous drainage system. You surely don’t want to empty the drain pan again and again. Make sure that the machine is advanced enough to drain all the water itself without your assistance. Otherwise, you might have to pay a lot of attention to drainage. 

Coverage Area

Different dehumidifiers have different capacities of coverage area, and from this feature, you can have a reasonable estimate about its performance. The first thing you should do is consider your surface area and the level of humidity it is having. Now choose a sucker that has the ability to remove that moisture and even above that. 

Tank Capacity

Taking out time from the busy routine to empty the tank can be disturbing and tedious. For this, you must have a tank that can hold a large amount of water in it easily. A bigger tank allows you to empty it at the end of the day instead of draining it frequently. 


Installation of dehumidifier does not necessarily need a professional. Some of the machines assemble quickly while others need some time, and all you have to do is follow the instruction manual. Installation majorly depends on the dehumidifier’s design; some systems can be hanged while you can tie some on the corner. 

You also need to consider the size and weight of the dehumidifier; as for large size machines, you may need to make adjustments in your crawl space. We recommend you buy the best crawl space dehumidifier that is compact and lightweight with high efficiency.   

Remote control

A few dehumidifiers come with the remote control, while others don’t have. Remote control operation enables you to use the machine effortlessly. Choosing a model with this option is a plus point, although if your device doesn’t have this feature, it will not affect the performance.  

Noise level

Noise is an essential factor to consider as noisy dehumidifiers can be very disturbing for some people. Some machines make a lot of noise than others, so it is always recommended to notice the decibel level before buying. Unlike many features, you can quickly note this specification. Make sure that you choose a machine that won’t wake you up at night. 

Auto-defrost operation

If you want your dehumidifier to function correctly in a crawl space or basement, it must have an auto-defrost feature. This feature helps the machine to operate at low temperatures and prevents frost from building on the inner side. 

LED Display

The display of timer, humidity control, inlet, and outlet information at the front LED display makes everything more transparent for the user. This feature is highly recommended as it allows you to use the machine conveniently. However, not all models come with LED, so you have to be careful about product specifications before buying. 


You don’t want your dehumidifier to fail within few months, so you must check the manufacturer’s promise before buying. Usually, dehumidifiers come with a 5-year warranty, but few of the best crawl space dehumidifiers have a lifetime warranty. Furthermore, some manufacturer’s warranty covers only a few options, so you need to be vigilant while choosing a model for yourself. 

Size and Weight

The size of the machine is another essential factor to consider. A huge size dehumidifier is challenging to install as compared to a small size. It would help if you chose a machine that functions properly and is compact. A too big humidity sucker will break your back while carrying it from one place to another. Always look for the model that is suitable according to your area and can be moved easily. 

Moreover,  a lightweight machine is easy to carry around. If you are the one who needs to change the location of the dehumidifier, then a portable one is best for you. Look for the model that comes with wheels and handles to remain no hurdle while carrying it. 

Sizes of Dehumidifiers

Dehumidifiers come in various sizes, and you need to have complete information about each size before selecting yours. Size is usually measured in terms of pints that means how much water the model can remove per day. 

Small Capacity

Usually, these dehumidifiers are not designed for large areas, basements, and huge crawl spaces. However, you can use them for small crawl spaces. It has less capacity and can only remove 25 to 30 pints of water per day. You can buy this small dehumidifier if your coverage area is less. 

Medium Capacity

The medium capacity dehumidifier is recommended for the large crawl spaces that are under your homes. You can also use this in places where controllable mold issues are present. The average capacity of these suckers is between 40 to 50 pints of water per day

Large Capacity

If your crawl space has an area of more than 4000 square feet, then we recommend you choose large capacity dehumidifiers. All those machines that can remove more than 60 pints of water per day are considered large capacity dehumidifiers. 

Frequently Asked Questions

Q: What Is A Crawl Space Dehumidifier?

It is a machine that controls humidity levels in crawl space automatically. It will automatically balance the moisture level, remove the water and drain it outside.
Besides using it in crawl space, you can also use it in other areas such as basements, garages, etc.
They come in different designs and sizes; you can choose the dehumidifier that matches your demands. 
The most advanced humidity suckers keep on operating themselves without needing any assistance from the homeowners.
You can easily set your humidity level from the control panel, and the machine will operate accordingly.  

Q: What are the benefits of using a Crawl Space Dehumidifier?

There are a lot of advantages to using this fantastic machine. Let’s cover up few basic ones:
It helps in maintaining an ideal level of humidity within the house. 
Excessive moisture can cause the development of fungus, mold, and foul odors that can eventually lead to many respiratory problems. Using dehumidifiers will helps in getting rid of all these issues and also avoid asthma symptoms. 
A proper moisture level in the crawl space protects your complete house from the high level of humidity. 
A right dehumidifier will set the indoor humidity to the recommended level with the minor maintenance required.

Q: Can I use a typical dehumidifier in the crawl space?

A regular dehumidifier may not have all those essential features from the crawl space, so we don’t recommend you to use that.
There is a separate category of humidity suckers specially designed for the crawl space, and it is better to use them.
Using the best crawl space dehumidifier, you will surely get better results compared to the standard dehumidifier.

Q: Why crawl space dehumidifiers are expensive than others?

A dehumidifier specially designed for the crawl space is pricey because it contains sophisticated components in it. Usually, these dehumidifiers are compact as large sizes are not suitable for crawl spaces.
More technology needs to be installed inside the compact size that requires extra engineering and, in return, more cost. 
Even if you have spent some extra bucks, you won’t regret it because this dehumidifier category is worth paying. 

Q: Is there any drawback of using a dehumidifier in crawl space?

Although it has lots and lots of benefits, but the only problem is that it can considerably enhance your electricity bill. The increase in the bill is because of the more consumption of energy. You also need to spend some money on regular maintenance and repairing of these machines. 

Q: What is the right place to put a dehumidifier in a crawl space?

Putting the dehumidifier is all your choice, but we will suggest installing it where there is a continuous circulation of air and nothing is interfering with the airflow discharge. The best place to install these units is concrete blocks. 

Q: What type of dehumidifier should you choose for crawl space?

The best crawl space dehumidifiers are not regular humidity sucker machines. Instead, they are more compact, rugged, and have high moisture extraction abilities. These dehumidifiers are usually commercial ones, so before buying, make sure that you only choose a commercial dehumidifier. 

Final Verdict

Hopefully, this detailed article was helpful for you in choosing the right crawl space dehumidifier for you. Investing in an efficient and powerful humidity sucker would be your perfect decision as it will prevent you from a lot of damage. Read, compare, and decide after analyzing that which product suits your need the most. It’s time to say goodbye to all moisture-related issues and bring comfort to your life!

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