7 Best Crawl Space Dehumidifier (Reviews and Guide)

A crawl space dehumidifier with pump can be a much-needed home appliance. It reduces moisture in some of the areas that are most prone to dampness. 

Crawl space dehumidifiers are more rugged than regular units. They are intended to remain hidden and withstand harsh indoor climates. Moreover, their continuous draining capability makes them more autonomous. You can keep them running for a long time without worrying about emptying the tank. 

7 Best Crawl Space Dehumidifier Comparison Chart

Last update on 2024-05-30 / Affiliate links / Images from Amazon Product Advertising API

Crawl spaces are not as well represented in the dehumidifier market as the more common living spaces. Nonetheless, many top companies in the indoor air quality industry have something to offer. Choosing the right appliance can, therefore, be a challenging and time-consuming endeavor. 

The good news is that you can save yourself some time by starting with the best models on the market today. For your benefit, we have put together our list of the top dehumidifiers with pump for crawl space.

Let the detailed reviews below bring you closer to making the right choice. 

Best Crawl Space Dehumidifier Reviews (Updated List)

1. AlorAir Sentinel HDi90 Basement/Crawl Space Dehumidifier – Our top pick

If your crawl space gets very humid, this rugged dehumidifier with pump from AlorAir is excellent for the job. It removes as much as 90 pints of moisture in a day, leaving any wet crawl space dry and mold-free. 

Despite its capacity, the Sentinel HDi90  is surprisingly compact. It is also conveniently portable, thanks to its four adjustable wheels. You can roll it easily across your floor and into position, rather than dragging it. 

The performance is just what you would expect from a crawl space dehumidifier of this size. The rotary compressor is also highly efficient, and the robust inbuilt pump has a decent 14.7-feet lifting distance.

Moreover, the Hot Gas Valve defrosting system makes this unit ideal for continuous low-temperature operation. 

With the optional Wi-Fi remote controller, you can control this crawl space dehumidifier with pump from the comfort of your couch. Simply set your desired humidity and leave the onboard humidistat to do the rest. 

Overall, the Sentinel HDi90 is an outstanding crawl space dehumidifier, but can also remove moisture from basements.

It has stellar performance and reliable continuous draining. Admittedly, it is not the cheapest dehumidifier on the market. Nevertheless, it is built to last a lifetime. 


  • Compact and portable
  • Stellar performance
  • Commendable drain pump capability
  • Wi-Fi remote controller
  • Reliable auto-defrost function


  • Relatively costly


Read Also: Basement Dehumidifier with Built-in Pump

2. Dri-EAZ F413 Revolution LGR Compact Dehumidifier – Best compact high-performer

Dri-EAZ dehumidifiers are a favorite among home and business owners because of their small size relative to the power they offer. So, do not let the compactness of the F413 fool you.

This commercial-grade machine can remove up to 120 pints of water from the air in a day.

The inbuilt automatic pump lifts the collected water to a remarkable 17 feet.

Furthermore, with professional help and additional supplies, you can connect the Dri-EAZ F413 to your ductwork. This additional investment will enable it to dehumidify the air circulating in your home continuously. 

Because it lacks a remote controller, the F413 is not as straightforward to operate as the AlorAir Sentinel SLi90. On the bright side, the touchpad is easily visible, even in the darkest crawl spaces.

It displays the temperature of the air coming in and going out, as well as the relative humidity in real-time. 

This crawl space dehumidifier with pump offers reliable dehumidification for the long term. It comes with several warranties, including a one-year coverage on parts and a six-year warranty for the compressor.

The F413 is not going to be your first choice if you are on a budget. If you have the money, however, it is a worthy investment.


  • Compact, portable design
  • Robust dehumidification performance
  • Commendable automatic pump draining performance
  • Lengthy drain hose included
  • Control interface with a touchpad on the unit


  • Lacks a wireless remote controller 
  • Relatively expensive


3. Aprilaire 1820 Pro Dehumidifier – Best for existing HVAC ductwork

The Aprilaire 1820 Pro is built for cramped crawl spaces that offer minimal access and low light. It is compact and light enough to position without requiring much external help.

Moreover, the included duct fittings make it relatively straightforward to fit in existing ductwork. 

This unit offers commendable performance. It can remove up to 70 pints of water per day. It also runs quietly and with little vibration. Aprilaire does not ship the 1820 Pro with an inbuilt pump.

For continuous, multidirectional draining, you need to purchase and fit the Aprilaire Low Profile Condensate Pump to the dehumidifier. Thankfully, the pump and hose combo is relatively cheap and straightforward to install. 

The simple, intuitive display on the 1820 Pro makes it easy to set up and control. You can set the humidity level you want, and the unit will self-regulate and maintain it.

The corrosion-resistant coils make the unit reliable for long-term use, even in incredibly moist crawl spaces. For good measure, Aprilaire backs this dehumidifier with a five-year warranty. 

Overall, the Aprilaire 1820 Pro is an excellent crawl space dehumidifier. Although it does not come with a pump, the external Aprilaire condensate pump you can purchase does not add much to the price. 


  • Remarkably compact and light
  • Fits easily in existing ductwork
  • Decent performance for the average crawl space
  • Quiet operation
  • Clear, easy-to-use controls
  • Anti-corrosion coils


  • Drain pump comes separately


4. MOUNTO MT 80 Compact Crawl Space Basement Dehumidifier – Budget option

Even among crawl space dehumidifiers, few machines can match up to the ruggedness of the Mounto MT 80. Its robust roto mold casing works effectively to prevent any water from sipping into the internal components. It also protects the MT 80 from damage due to accidental impact. 

The compact design makes this dehumidifier easy to position in tight crawl spaces. However, it is relatively heavy, which means you will probably need extra hands where lifting is required. 

As expected with Mounto dehumidifiers, the MT 80 is a high-performance beast. It can remove anything between 80 and 120 pints per day, depending on the temperature and humidity levels in your crawl space.

The inbuilt pump eliminates any need to monitor the unit for full tanks and spillages. It can drain the condensate away for up to a vertical distance of 14 feet. 

The numeric LCD dispplays the humidity level and the inlet and outlet air temperatures. It also features buttons and dials for intuitive control. 

The Mounto MT 80 is a reliable dehumidifier for long-term use. It lacks the comprehensive warranty cover of some of its competitors, but it is more competitively priced.

If you are looking for a high-performance, pro-grade crawl space dehumidifier with pump on a budget, the MT 80 is a great choice. 


  • Rugged and durable
  • Compact enough to fit in most tight spaces
  • Outstanding performance
  • Excellent drain pump capability
  • Easy-to-use controls
  • Affordable price


  • Relatively heavy
  • Lacks a comprehensive warranty cover


5. AlorAir Storm LGR Extreme 190PPD – The ultimate high-performance dehumidifier

The AlorAir Storm LGR Extreme is AlorAir’s answer to flood and water damage in crawl spaces. This rugged, low-maintenance machine can remove a staggering 190 pints of water per day. It, therefore, ensures quick and effective dehumidification of any affected area. 

Considering the power of the LGR Extreme, its small size is quite remarkable. The compact design makes it easy to fit in tight spaces and store for future use. It also comes with heavy-duty handles to make lifting easier. 

As the name suggests, the LGR Extreme works best in extreme conditions.

It is entirely waterproof, thanks to its moisture-resistant rubber seals. It also works across a wide temperature range, from a cold 33°F to a hot and humid 105°F.

Despite its look, the LGR Extreme is as straightforward to operate as your typical living room dehumidifier.

Simply plug it in and used the control panel to set the humidity you want. Furthermore, thanks to the unit’s automatic memory starting feature, you do not need to go down to your crawl space to turn the unit on after a power blackout.

The AlorAir LGR Extreme is more performance-oriented than its counterpart, the Sentinel HDi90.

It offers quicker relief to crawl space dampness but lacks remote control functionality. Nevertheless, it is the best option for excess flooding and water damage control. 


  • Robust, rugged design
  • Exemplary performance
  • Wide operating temperature range
  • Auto-restart functionality
  • Competitively priced


  • Lacks wireless control


6. Santa Fe Advance100 Crawl Space Dehumidifier – Control at your fingertips

The Santa Fe Advance100 is among the most popular crawl space dehumidifier with a pump for a good reason. It combines top-class performance with a compact, functional design.

This makes it ideal for even the tightest of spaces. It also features leveling feet, caster wheels, and dual exhaust outlets to facilitate various placement options. 

With a capacity of 100 pints, the Advance100 is suitable for deployment in exceedingly wet environments. Moreover, it runs efficiently and with minimal noise, especially in quiet mode.

Like the Aprilaire 1820 Pro above, the Advance100 does not have an inbuilt drain pump. Instead, Santa Fe offers an optional condensate pump, which ships with a 40-foot-long drain pipe. 

You can control the humidity setting and fan speeds using the simple switches and dials on the dehumidifier. For maximum convenience, you can also control the unit remotely through the Connect smartphone app

To add to its versatility, the Advance100 comes with auto-defrost functionality. It can, therefore, continue working, even in crawl spaces as cold as 30°F. The dehumidifier also features two filtration stages that trap impurities from the air to improve efficiency. 

The Santa Fe Advance100 is a great solution for managing crawl space dampness and water damage. It offers portability, durability, stellar performance, and remote control, all at a reasonable price. 


  • Compact, portable design
  • Excellent performance
  • Quiet and efficient operation
  • Smartphone control
  • Effective auto-defrost functionality
  • Reasonably priced


  • Drain pump comes separately


7. Dri-EAZ PHD 200 Crawl Space Dehumidifier – The quietest of the bunch

The Dri-EAZ PHD 200 is the smaller, less-rugged, and more affordable alternative to the Dri-EAZ F413. Like its more endowed counterpart, it is remarkably compact considering the performance it offers.

Consequently, you can find a spot for it in any hard-to-reach space without breaking a sweat.

This machine can draw out a decent 70 to 100 pints of moisture per day, depending on the temperature and relative humidity in your crawl space. It runs quieter than most alternatives, including the costlier F413. 

The drain pump allows continuous, autonomous operation with no worries about overflowing tanks.

However, it only manages a maximum of 5 feet of lifting distance. This is significantly lower than what the pumps in options like the Dri-EAZ F413 and the AlorAir Sentinel HDi90 can achieve.

The controls on the PHD 200 are easy to use. The LCD provides straightforward visibility in dark environments.

Thanks to the onboard humidistat, you can set a target humidity level for your crawl space and leave the dehumidifier to do the job. 

Dri-EAZ dehumidifiers offer pro-grade dehumidification and the PHD 200 is no exception. If you are not too concerned about vertical draining power, you will be delighted with your investment. 


  • Light and compact
  • Decent performance
  • Quiet operation
  • Easy-to-use controls
  • Effective humidistat


  • Modest drain pump power


Our Pick of the Best Dehumidifier with Pump for Crawl Space

As you have learned, crawl space dehumidifiers come in different sizes and capabilities. Some are ideal for enclosed areas that experience occasional dampness. Others are suitable for dealing with excessive flooding.

Compact, portable options offer more placement flexibility. On the other hand, bulkier dehumidifiers often provide better dehumidification performance. 

The best dehumidifier for your crawl space is the one that best matches your needs and your budget.

But if we had to choose the best among the units above, it would have to be the outstanding AlorAir Sentinel HDi90. It ticks all the relevant boxes without being unreasonably expensive. 

The wireless remote controller is also a much welcome feature. Furthermore, its auto-defrost functionality makes it the perfect dehumidifier with a pump for crawl space for all-year use. 

If you are looking for a more compact unit, our second choice, the Dri-EAZ F413 is an excellent alternative. It makes up for the lack of a Wi-Fi controller with better performance and portability. 

How to Buy a Dehumidifier for Crawl Space

dehumidifier iwith pump set up in a crawl space

Knowing the best crawl space dehumidifier with pumps on the market can reduce the time you take to make a decision. However, to choose the right unit, you must also know what you are looking for in a dehumidifier. 

This section will cover the main factors to consider when shopping for your next crawl space dehumidifier.

1. Performance and Coverage area

Like all other dehumidifiers, crawl space units come with varying performance. Generally, the more the capacity, the larger the coverage area a dehumidifier can cover. High-performance dehumidifiers also take in more water in a day.

Before you go shopping, therefore, examine your crawl space. Take measurements so that you only consider the units that can match the size of the crawl space. 

Additionally, take note of the relative humidity. A simple, hand-held digital hygrometer like the AikTryee Mini can help you determine how wet your crawl space gets.

You can, therefore, decide whether you need the robust AlorAir Storm LGR Extreme 190PPD, the less-powered Aprilaire 1820 Pro, or something in between. 

Related: Choosing The Best Dehumidifier For 1000 Sq Ft Room

2. Weight and dimensions

The purpose of measuring your crawl space goes beyond determining coverage area.

You must also consider where you will place your new unit. Some of the most powerful crawl space dehumidifiers are also relatively large. The last thing you want is to buy a unit that is too big to fit in your space.

3. Pump draining power

A pump is a massive advantage for a crawl space dehumidifier. Because it drains the water for you, you do not need to go down to your crawl space to empty the tank. 

That said, dehumidifier pumps are not equally effective.

The pump on the AlorAir Sentinel HDi90 can drain your water through a window that is as high as 14.7 feet from the unit. On the other hand, the Dri-EAZ PHD 200 can only lift condensate water to a height of 5 feet. 

When shopping, therefore, consider where you want your drained water to go.

4. Extra features

Crawl space dehumidifiers are not as feature-packed as apartment dehumidifiers or bathroom dehumidifiers. However, going for a unit with some extras can make your experience significantly better. 

For instance, clear and easy-to-read controls minimize the risk of keying in the wrong settings.

Meanwhile, a unit with anti-corrosion coils will break down less frequently than one with bare coils. If your crawl space gets very cold in the winter, anti-defrost must be one of the key features to consider. 

And if it gets too moist,  having the best crawl space heat unit for heating your crawl space can come in handy.


Some crawl space dehumidifiers come with remote-control capability.

The Santa Fe Advance100, for instance, can give you the convenience of monitoring the humidity in your crawl space right from your smartphone. 

5. Warranty

A crawl space dehumidifier is a sizable investment. As with any big purchase, therefore, you want to make sure you get your money’s worth. 

A unit with a decent warranty will stick with you for the long term. If something fails during normal operation, you can always reach out to the seller or manufacturer to get it fixed at no cost. 

When comparing warranties, read through the fine print. Some companies may claim to offer lengthy covers but only cover specific parts instead of the whole unit. Ensure you get a comprehensive warranty that will stand with you at least a few years into the future. 

Wrapping Up

Crawl spaces are notorious for harboring excessive wetness. With the right crawl space dehumidifier with pump, you can fix the problem once and for all. 

We hope you will find our guide helpful in your quest for the best appliance. High indoor humidity can adversely affect your health and quality of life. Stay safe and comfortable by maintaining the right moisture level in your home.

You may also want to check out these dehumidifier guides as well;

  1. Best 90 Pint Dehumidifiers
  2. Best Dehumidifier for Large Basement
  3.  Best Air Purifier and Dehumidifier All In One
  4. Best Dehumidifier For Attic


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Melanie Mavery is an aspiring HVAC technician who is fascinated by the trends and opportunities in the HVAC industry. She spends most of her day writing content on home improvement topics and outreaching to prospects.  She's always looking for ways to support HVACs!