Best Dehumidifier for Basement – (Reviews & Buying Guide 2020)

Did you know that prolonged exposure to damp and moldy environments can trigger numerous health problems? Some of the most widespread effects include throat irritation, nasal stuffiness, eye irritation, coughing, and the list may go on. Essentially, damp environments aren’t problematic for sensitive or allergic individuals only. In addition to that, children can be overly sensitive if living in a damp environment, because their immune system isn’t fully developed.

To that end, what is it that you can do to ensure that the breathable air inside your home is healthy and safe? A dehumidifier could be the solution. However, the world of dehumidifiers is definitely a vast one. Even if a product you find on the market is presented as being the best dehumidifier for basement or the best crawl space dehumidifier, this doesn’t necessarily make it a high-quality one.

This is why it might be a good idea to go through our basement dehumidifier reviews and comprehensive buying guide.

Frigidaire 70-Pint Dehumidifier with Effortless Humidity Control

Frigidaire 70-Pint Dehumidifier

  • Price: $$$
  • Dimensions: 11.6 x 15 x 24.4″
  • Weight: 47 pounds
  • Ideal for: Up to 2500 sq ft
  • Power consumption: 745 watts
  • Highlights: • Ready-Select electronic controls • 24-hour on/off timer
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hOmeLabs 4000 Sq Ft Dehumidifier

hOmeLabs 4000 Sq Ft Dehumidifier

  • Price: $$
  • Dimensions: 15.4 x 11 x 24.3″
  • Weight: 40 pounds
  • Ideal for: 4000 Sq Ft
  • Power consumption: N/A
  • Highlights: • 24-hour cycle • Automatically shut-off
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Frigidaire Energy Star 70-Pint Dehumidifier

Frigidaire Energy Star 70-Pint Dehumidifier

  • Price: $$$
  • Dimensions: 12.3 x 17.3 x 25.5″
  • Weight: 46 pounds
  • Ideal for: 1400 sq. ft.
  • Power consumption: 420 watts
  • Highlights: • Continuous operation • Auto shut-off
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Keystone KSTAD70C Energy Star 70-Pint Portable Dehumidifier

Keystone 70 Pint Dehumidifier

  • Price: $$$$$
  • Dimensions: 11.2 x 15.5 x 23.2″
  • Weight: 40 pounds
  • Ideal for: 4500 square feet
  • Power consumption: 720 watts
  • Highlights: • Auto-restart • 24-hour timer
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Ivation 70 Pint Energy Star Dehumidifier with Pump

Ivation 70 Pint Energy Star Dehumidifier

  • Price: $$$
  • Dimensions: 15.4 x 10.8 x 23.2″
  • Weight: 39.7 pounds
  • Ideal for: 4500 square feet
  • Power consumption: N / A
  • Highlights: • Eco-Efficiency • Auto-Defrost, & Auto-Restart
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Best Dehumidifier for Basement & Crawl Space (Newest Models)

1- Frigidaire 70-Pint Dehumidifier

Frigidaire 70-Pint Dehumidifier with Effortless Humidity ControlThis item is seen as one of the very best dehumidifiers on the market – and for many good reasons. Most importantly, it does an amazing job of eliminating moisture quickly and efficiently. In addition to that, in comparison with other 70-pint dehumidifiers we’ve tested, this one is, by far, one of the most impressive units.  

It is rated as being energy efficient, as its maximum power draw is of 745 watts. Another noteworthy aspect is its quiet operation. Since the unit takes the air through the back, if you locate it next to a wall, the amount of noise produced will be much lower. Still, considering that most people get a dehumidifier for basements or crawl spaces, this shouldn’t be a big issue.

Nevertheless, in order to benefit most from its performance, we’d recommend you to place the dehumidifier in the center of the room. Or, if that’s not a possibility, you can direct it so that the unit faces the center of the room.

Are there any drawbacks worth noting, though? Well, a minor inconvenience could be that the water tank is quite small, considering the size class of the dehumidifier.

2- hOmeLabs 4000 Sq Ft Dehumidifier

hOmeLabs 4000 Sq Ft DehumidifierAnother top 70-pint dehumidifier, this hOmeLabs dehumidifier provides excellent value for the money. It is conveniently priced, which makes it an attractive buy for people on a budget.

This is more than ideal for damp spaces such as basements, cellars, or anything of the kind. Without a doubt, the modern, sleek design is a major draw – meaning that this unit won’t stand out due to a bulky, large design.

After consistent testing, we found that this is rather effortless to use. What you have to do is simply regulate your preferred moisture level. Once you do that, you should allow the unit to run its 24-hour cycle until the tank is full. At that point, the unit will automatically shut-off – which is really convenient.

However, if you don’t want to worry about regularly emptying the tank, you can choose to use the drain hose outlet, which is meant for continuous draining. Nevertheless, note that the hose isn’t included; you should purchase it separately if you prefer this alternative.

3- Frigidaire Energy Star 70-Pint Dehumidifier

Frigidaire FAD704DWD Energy Star 70-pint DehumidifierGetting the title of the best 70-pint dehumidifier isn’t an easy job. But this particular unit by Frigidaire definitely comes close to being the best. It offers a great mix of features at a convenient price. How much space does it cover, though?

You might be surprised to find out that it only covers surfaces up to 1400 square feet. And while this isn’t necessarily its strongest point, it is quite effective at covering small areas, such as basements or crawl spaces – which is why it reached our list of recommendations.

Being equipped with a pump that works round the clock, the draining process is quick and efficient. In addition to that, it is a low-temperature unit, which means that it doesn’t eat up a lot of energy. Plus, thanks to all the automated features it comes with, this functions round the clock without depending on your input.

On top of that, the anti-bacterial mesh filter and humidity control characteristic are genuinely convenient and useful.

4- Keystone 70 Pint Dehumidifier

Keystone KSTAD70B 70 Pt. DehumidifierIf your budget is a tad limited, then this particular dehumidifier might be the right option for you. While it isn’t necessarily at the lowest price range, it offers good value, overall. Covering an area of up to 4500 square feet, this is a potent dehumidifier that is perfect even for the dampest environments.

Thanks to the continuous draining option, this machine can run continuously for an extended timeframe. All you need to do is change the filter when needed, and that’s about it.

The water level indicator is also easy to read, so that you’ll know when to remove the water bucket, considering that you don’t have a hose. Once again, this is an energy star approved the product, meaning that it will help you keep your energy costs low. Nevertheless, in comparison with other units we’ve tested, this isn’t the most energy-efficient, which could come off as a drawback.

Furthermore, the LED display is really practical, for feasible control.

5- Ivation 70 Pint Energy Star Dehumidifier

Ivation 70 Pint Energy Star Dehumidifier with PumpIf we had to recommend this product to a particular audience, we would recommend it to beginners. That’s because it is easy to use. Thus, even if you haven’t used a dehumidifier until now, you’ll quickly get the hang of it thanks to its simple operation.

This one operates efficiently in areas up to 4500 square feet. After conducting our tests, we can say that it is highly effective in both basements and attics.

You can choose from two operating options – namely connecting the machine to a hose or utilizing the 1.3-gallon removable tank. It all depends on your specifications.

We really like that this is a compact machine. Therefore, portability comes as a major benefit. Being equipped with power-saving technology, you can keep your energy costs under control while maintaining your indoor air breathable and safe.

Another nice feature is the frost sensor – which can be really handy, considering that the insulation in attics and basements isn’t the best, in most cases.

Friedrich D70BP 70 Pint Dehumidifier

Friedrich 70 Pint Dehumidifier

  • Price: $$$$
  • Dimensions: 12 x 15 x 23.2″
  • Weight: 5.93 pounds
  • Ideal for: 1300 sq. ft.
  • Power consumption: 840 watts
  • Highlights: • 24 hr. ON/OFF timer • Auto-restart
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Whynter RPD-702WP Energy Star Portable Dehumidifier with Pump

Whynter Energy Star Portable Dehumidifier with Pump

  • Price: $$$
  • Dimensions: 11.2 x 14.5 x 23.2″
  • Weight: 44 pounds
  • Ideal for: 3800 sq. ft.
  • Power consumption: 950 Watts
  • Highlights: • Auto-restart and auto-shutoff • Auto-defrosting
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Danby DDR070BDWDB Energy Star 70 pint Dehumidifier

Danby Energy Star 70 pint Dehumidifier

  • Price: $$
  • Dimensions: 11.8 x 16.1 x 24.2″
  • Weight: 41.4 pounds
  • Ideal for: 4500 sq. ft.
  • Power consumption: up to 500 Watts
  • Highlights: • 24-hour on/off timer • 2 fan speeds
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BLACK+DECKER BDT70PWT 70 Pint Energy Star Portable Dehumidifier

BLACK+DECKER 70 Pint Energy Star Portable Dehumidifier

  • Price: $$
  • Dimensions: 11.2 x 15.2 x 24.9″
  • Weight: 50.5 pounds
  • Ideal for: up to 3500 sq. ft
  • Power consumption: 730 watts
  • Highlights: • Adjustable thermostat with digital display • 24-hour timer
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LG Energy Star PuriCare 70-Pint Dehumidifier, Black, 690W

LG Energy Star PuriCare 70-Pint Dehumidifier

  • Price: $
  • Dimensions: 16.8 x 12.6 x 26.2″
  • Weight: 48.5 pounds
  • Ideal for: up to 2000 sq. ft
  • Power consumption: 690 watts
  • Highlights: • Automatic humidistat control, 2 speeds • Timer (up to 12 hours)
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6- Friedrich 70 Pint Dehumidifier

Friedrich D70BP 70 Pint DehumidifierOur list of recommendations continues with this dehumidifier manufactured by Friedrich. It facilitates a 24-hour draining operation so that the moisture levels inside your house are properly maintained.

You can adjust the required moisture levels by utilizing the top-mount digital touch controls. How about the drainage options you can choose from? There are three alternatives, namely the removable condensate bucket, the intuitive built-in drain pump or the continuous drainage outlet.

You can pick the one that is most convenient for you. That being said, if you don’t have the possibility of connecting the unit to a hose, the fact that the water tank is rather large – 16.2 pints – comes as a major advantage.

On a different note, we’ve established that the built-in hygrometer is very reliable. Aside from that, the separate temperature display definitely comes in handy. Thanks to the wheels, you can easily move this around the house, depending on where you need it.

On the other hand, there might be some issues with the item’s durability, as noted by former customers.

7- Whynter Energy Star Portable Dehumidifier with Pump

Whynter RPD-702WP Energy Star Portable Dehumidifier with PumpWhynter is a renowned name in the world of dependable dehumidifiers. And their 70-pint dehumidifier is one of their largest-capacity units, at the moment. This machine balances a reliable operation, powerful moisture removal with a great mix of features.

Every 24 hours, this machine successfully removes up to 70 pints of moisture; thus, it addressed problems such as mold and mildew inside your home.

Once again, you can regulate the preferred levels of humidity. Moving on, this unit is equipped with a handy 18-pint storage bucket. Now, if you aren’t home to empty it, the unit automatically powers off, before it becomes too full and causes any damage.

Its maximum coverage is of 3800 square feet – so, bear this in mind as you shop for the best unit for your needs. Nevertheless, the 1-year warranty provided by the company is a disadvantage. On top of that, in two months after purchasing the unit, if you decide to return it, you are liable to pay for the transportation costs.

8- Danby Energy Star 70 pint Dehumidifier

Danby DDR070BDWDB Energy Star 70 pint DehumidifierIf you’re dealing with an excess of moisture, this 70-pint dehumidifier is worthy of your consideration. Similarly to other units mentioned beforehand, this also eliminates 70 pints of moisture in 24-hours’ time. It is capable of dehumidifying a surface of 4500 square feet.

Therefore, many people choose this to cover an entire house. It functions quietly at only 50 decibels. This would make it as loud as a typical refrigerator. In time, you’ll get used to the noise it produces – you might find it difficult to notice it whatsoever.

A major advantage is a fact that it is made to handle temperatures as low as 41 degrees Fahrenheit. Aside from that, thanks to the auto defrost feature, you don’t have to worry that the water inside the unit will freeze if the temperatures unexpectedly drop.

If you wish, you can connect a hose to this unit, so that you don’t have to worry about emptying the bucket regularly. Nevertheless, note that Danby doesn’t provide the hose with the dehumidifier. Plus, this doesn’t have a drain pump.

9- BLACK+DECKER 70 Pint Energy Star Portable Dehumidifier

BLACK+DECKER BDT70PWT 70 Pint Energy Star Portable DehumidifierAt first glance, this is a large unit – weighing around 50 pounds. Implicitly, you expect it to effortlessly handle large garages, basements, and rooms. And while the fact that it is quite large isn’t an advantage, it comes with four handy caster wheels. Somehow, this eases transportation.

There is also a small opening on the front of the device so that you can gauge the amount of water accumulated by the dehumidifier. In addition, there is a handy digital LED display that gives you information about air humidity and others.

Moving on, this is powerful enough to diminish the humidity levels in an enclosed space by as much as 30 percent. That is thanks to its powerful compressor and the integrated pump that works non-stop.

There are six distinctive programs – namely pump, humidity up/down, filter fan, timer, power, and mode. Evidently, this significantly simplifies the settings. What is more, the inclusion of a timer enables you to establish the working time and hours for the unit.

Still, it is contraindicated to use this machine in hot rooms with a temperature higher than 95 degrees Fahrenheit. This will increase the likelihood of overheating and breaking down.

10- LG Energy Star PuriCare 70-Pint Dehumidifier

LG Energy Star PuriCare 70-Pint Dehumidifier, Black, 690WIt’s difficult not to like the sleek and modern design of this dehumidifier. It looks so polished that it will inevitably fit any space. In fact, the manufacturer used a mix of high-quality plastic and metal in the making of this unit.

What about its performance? It doesn’t disappoint in this respect either. The LED screen comes in handy, allowing you to customize the settings in a matter of a few minutes or so.

More specifically, you have the option of controlling the humidity, monitoring the amount of collected water or activating a timer.

It is capable of pulling up to 33 liters of water daily. Another nice addition is the automatic defrost option. On top of that, if you want to benefit from continuous drainage, you can always connect the unit to a hose. Nonetheless, you have to be careful when removing the container, because it is a bit difficult.

AlorAir Basement/Crawlspace Dehumidifier

AlorAir Basement/Crawlspace Dehumidifier

  • Price: $$
  • Dimensions: 17.7 x 11.8 x 11.8″
  • Weight: 59.5 pounds
  • Ideal for: 1,300 Sq. Ft
  • Highlights: • Continuous 24-hour cycle • Automatically shut-off
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AlorAir Basement/Crawlspace Dehumidifier 198PPD

AlorAir Basement/Crawlspace Dehumidifier 198PPD

  • Price: $$$
  • Dimensions: 24.8 x 13.7 x 15.7″
  • Weight: 78.3 pounds
  • Ideal for: 1,300 Sq. Ft
  • Highlights: • Automatic Humidistat Control √ • HGV Defrosting
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Dri-Eaz F413 Revolution LGR Dehumidifier

Dri-Eaz Revolution LGR Dehumidifier

  • Price: $$$$
  • Dimensions: 12.5 x 21.5 x 12.5″
  • Weight: 61 pounds
  • Ideal for: 7,000 square feet
  • Highlights: • Automatic restart • Automatic pump-out
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Aprilaire 1830 Basement Pro Dehumidifier for Basement & Crawl Space

Aprilaire 1830 Pro Dehumidifier for Basement & Crawl Space

  • Price: $$$
  • Dimensions: 25 x 12.5 x 14.5″
  • Weight: 67 pounds
  • Ideal for: 2200 sq. ft.
  • Highlights: • Automatic restart • Controlled levels of electricity
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Drieaz F515 PHD 200 Compact Dehumidifier

Drieaz Compact Dehumidifier

  • Price: $$$$$
  • Dimensions: 24.5 x 13 x 19″
  • Weight: 65 pounds
  • Ideal for: 3500 sq. ft.
  • Highlights: • Automatic humidity control • Auto pump-out
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Ebac 1133500 Compact Heavy Duty Dehumidifier

Ebac Compact Heavy Duty Dehumidifier

  • Price: $
  • Dimensions: 22 x 12 x 12″
  • Weight: 50 pounds
  • Ideal for: up to 1200 sq. ft.
  • Highlights: • Reverse cycle defrost • Adjustable control humidistat
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Best Crawl Space Dehumidifiers

1- AlorAir Basement/Crawlspace Dehumidifier

AlorAir Basement/Crawlspace DehumidifierIf you deal with mildew and other problems triggered by an excess of humidity, then this dehumidifier will definitely address your problems. It is more than perfect for tight crawl spaces – and not only. It is an excellent option for warehouses, restaurants, bars, factories, museums, storage areas, and so on. In short, it is suitable for places in which humidity is an issue.

It is equipped with a potent G3 filter that does an amazing job at capturing large airborne particles. This has the purpose of safeguarding the unit from the congestion of impurities. Concurrently, this filter has the purpose of facilitating maximum airflow supply volume.

Furthermore, you should know that this unit is made to withdraw no less than 55 pints of moisture in spaces measuring up to 1,300 square feet.

A unique characteristic is the epoxy coating on coils. In order to prevent Freon leakage, which is, presumably, the most problematic issue associated with dehumidifiers, AlorAir has come up with this unique technology. This prolongs the lifespan of the coils, and it accomplishes this by facilitating protection against corrosive environments.

In addition to that, thanks to the highly efficient rotary compressor, you benefit from unmatched effectiveness at an excellent cost. The only disadvantage we could think of is that this is a pricey unit.

2- AlorAir Basement/Crawlspace Dehumidifier 198PPD

AlorAir Basement/Crawlspace Dehumidifier 198PPDThis is another excellent dehumidifier for crawl spaces, produced by the same manufacturer. We could argue that this product has it all. It is meant to work in cooler temperatures while being equipped with a practical hot gas valve defrosting system. This will keep the coils from freezing.

As for the construction of the unit, it is made from qualitative, sturdy materials – being as strong as a tank. We subscribe to that!

Moving on, the internal corrosion protection keeps the inner components of the machine in optimal shape. Evidently, this plays a part when it comes to durability. Without this unique characteristic, due to the prolonged exposure to moisture, the corrosion of the metals would be imminent.

Similar to the unit presented beforehand, this device also comes with a condensate pump and a G3 filter. To be more specific, the coils are epoxy coated, which provides an additional layer of protection against moisture.

If you want, you can control this dehumidifier via a remote. The only inconvenience is that you ought to purchase the remote separately. It’s still well worth the investment, as you can use it to monitor and adjust the machine without the need to go to the crawl space. An added bonus is that of the humidistat feature.

Another inconvenient might be that the unit is rather heavy; therefore, moving it can be a challenge.

3- Dri-Eaz Revolution LGR Dehumidifier

Dri-Eaz F413 Revolution LGR DehumidifierThis is another top-quality dehumidifier fit for crawl spaces and it also comes with an included pump. The reason why this product made it to our list of recommendations is its impressive coverage of 7,000 square feet.

At 60 pounds, it is not as heavyweight as many similar products on the market. This is, evidently, a major benefit – even if your crawlspace might be vast, this doesn’t mean that the access door is just as large. If this applies in your situation, as well, then this dehumidifier might be a suitable choice for you.

As soon as you’ll have this installed, there is little left for you to do. The included hose is clear – which makes it easy for you to point out whether the pump is working or not.

Aside from that, the unit comes with an automatic restart function. This way, in case of blackouts (which can happen without additional notice), you don’t have to worry about turning on the unit.

Thanks to the automatic pump and built-in humidistat, you’ll find that this machine is easy to set, read and drain. It is fully capable of absorbing up to 80 pints of water every day, allowing you to reach your desired humidity level.

On the other hand, a drawback could be the absence of a hot-gas de-icing capacity. Aside from that, if not installed properly, the hose is likely to leak at the connection point.

4- Aprilaire 1830 Pro Dehumidifier for Basement & Crawl Space

Aprilaire 1830 Basement Pro Dehumidifier for Basement & Crawl SpaceWhat makes it a good product for crawl spaces? For one thing, it covers effectively an area of up to 5000 square feet. In addition, every 24 hours, it removes up to 70 pints of moisture.

Distinct from other compressor-based units we’ve tested, this one isn’t as noisy as you might expect it to be. To be more precise, it operates at 51 dB, which is pretty good considering other products. Another major selling point is the fact that it consumes controlled levels of electricity.

Similar to other Aprilaire models, this unit is also equipped with a gravity-driven drain port. Its goal is to facilitate continual spilling of the condensate. Thus, this means you are freed from the responsibility of emptying the tank too often.

On top of that, the unit’s capability of starting and restarting itself is also an advantage – especially if you live in an area where power outages happen all the time.

When it comes to operating at low temperatures, even the coils on the very best dehumidifiers are prone to the frosting. This isn’t the case, though, with this model – thanks to its auto defrosting capability. As for the washable MERV 8 air filters, you can conveniently wash them when needed, as they are easy to remove. The reason why you should wash them is that this will help you get rid of harmful allergens such as dust and mold spores.

5- Drieaz Compact Dehumidifier

Drieaz F515 PHD 200 Compact DehumidifierThis is a professional-grade dehumidifier produced specifically for confined spaces. Featured by a surprising drying capability, this dehumidifier is easy to use, practical and efficient.

Considering its compactness, you might find it hard to believe that this is a professional-grade unit. But it really is. You’ll find it really convenient that you can move it around your home depending on your specific needs.

Thanks to the digital controls, you’ll see that it’s easy to read the specifications of the unit, even in darker environments. Aside from that, the humidistat is handy, as it enables you to establish target humidity for each area. In addition to that, due to the automatic pump-out, you benefit from the continuous operation, without the need to empty any tanks or anything of the sort.

Bear in mind, that you shouldn’t place the end of the hose higher than three feet above the base of your unit. The drain hose should run into a nearby sink or floor drain.

All in all, this product is well worth the investment. The main disadvantage that we should mention is the fact that it is heavy. Nevertheless, this often comes with the territory with this type of units.

6- Ebac Compact Heavy Duty Dehumidifier

Ebac 1133500 Compact Heavy Duty DehumidifierBy all means, this product also belongs to the category of best dehumidifiers. It is versatile, meaning that it works for both permanent and temporary installations. So, it’s entirely up to you to decide how to use the device.

The unit includes an adjustable control humidistat. This allows you to regulate the humidity levels in the air. Hence, you can finally say goodbye to excess of moisture, which can trigger so many problems.

By looking at this unit, you can tell that it is made to last. Featuring a sturdy construction, it features military-type carrying handles, as well as enclosed coils in an epoxy coated case. This makes it a long-term investment.

Moreover, the hot gas defrosting feature is highly appreciated by most customers. We’ve tested it ourselves and we can say that it makes the world of a difference. This automatically melts any frost buildup, facilitating an efficient operation, regardless of the temperatures inside your crawl space.

It can be difficult to anticipate how low the temperatures could drop in crawl spaces – this is why this characteristic definitely comes in handy. Under normal operating conditions, this unit is fully equipped to eliminate more than 17 pints of water on a daily basis.

What Is Meant by a Basement Dehumidifier?

best basement dehumidifierHigh humidity levels in areas such as basements or crawl spaces can have horrific effects on your health, and not only. The thing is that moisture levels tend to go overboard in this kind of spaces. That is to say, a unit that would work perfectly fine in a bedroom or a living room might not be as effective in a crawl space or basement.

The temperature of the room where you want to locate the dehumidifier plays a fundamental part. For the most part, the efficacy of a dehumidifier depends on the individual conditions of that space.

Hence, if you want to use a dehumidifier in a comprised space such as a garage or basement, where the temperatures might either drop or increase, you have to get a unit with optimal control, which can handle extreme temperatures. This is where basement dehumidifiers come in – these are created specifically to address the individual specifications of these crawl spaces, in which humidity levels can skyrocket.

So, the primary goal of a basement dehumidifier is to eliminate the excess of moisture by removing the condensation from the air. This way, you can really control the moisture buildup, and prevent your house from getting damaged.

What Are the Main Types of Dehumidifiers?

We know what you’ll say: how can I choose a single dehumidifier when there are so many products on the market that supposedly do the same thing? The thing is that, while there is diversity, there are three main types of dehumidifiers, each of them with its individualities. Keep on reading to find out how dehumidifiers work, depending on their type.

  • Compressor Dehumidifiers

We could say that compressor dehumidifiers are among the most commonly used types of dehumidifiers. That is to say, they have been around for roughly forty years or so. But how do they work, though? Basically, this type of dehumidifier creates a cold surface. As soon as the damp air in space gets in contact with that cold surface, condensation takes place. Afterward, the water separates from the air.

Finally, the unit reheats the air and redirects it into the room dry and warm. This will evidently diminish the relative humidity level in the atmosphere. The built-in compressor has the purpose of cooling down the coils. The larger the surface, the more water can be condensed.

A major advantage associated with compressed dehumidifiers is that they consume a controlled amount of energy. Nevertheless, this will widely depend on each model, in particular. For example, ENERGY STAR certified dehumidifiers come with energy efficient compressors.

  • Desiccant Dehumidifiers

best crawl space dehumidifier

On the other hand, desiccant dehumidifiers work differently – as they utilize a desiccant chemical that absorbs excess moisture from the air. A fan propels the wet air inside the dehumidifier, where it is further transferred to the desiccant. The desiccant moisture absorber is usually located on a slowly rotating wheel.

A part of the wheel is, afterward, heated up. This way, the moisture is dropped into the water tank. From that point onward, the air is reheated and pumped back into the room, thus, decreasing the level of relative humidity in an enclosed space.

As a rule of thumb, desiccant dehumidifiers are smaller, featuring simple designs. In addition to that, they are highly effective in small rooms and spaces such as basements, attics and not only.

  • Thermoelectric Dehumidifiers

Thermo-electric dehumidifiers form another category. Such a unit depends on the thermoelectric effect, converting electricity into a temperature difference. The temperature difference that results will facilitate the dehumidification.

The thermoelectric effect is a physical phenomenon that utilizes electricity for changing temperatures. Originally, the term thermoelectric effect entails the Seebeck effect and the Peltier effect. Notwithstanding, thermo-electric dehumidifiers involve the Peltier effect alone – hence, the term Peltier dehumidifier.

So, what happens is that the Peltier module inside the unit runs the electricity. It is this electricity that leads to the creation of a temperature difference within the module. As a result, one side of the module cools off whereas the other side of the module heats up – and this is what contributes to the dehumidification process.

The warm and humid air reaches the unit through a front grille. The fan located at the back of the dehumidifier pulls the air inside. When the warm, humid air enters direct contact with the front of the cold side is when the dehumidification takes place.

Features to Look for in a Basement Dehumidifier

basement dehumidifier reviews

Each dehumidifier comes with a bunch of features. You might find some as being indispensable, while others not so much. It all depends on your needs. With that being said, we find that the following characteristics are primordial to consider during the shopping process.

  • Defrost Mode

Generally speaking, humid environments such as basements, attics, warehouses aren’t properly insulated. At the very least, the level of insulation isn’t as reliable as in other cases. This is why the temperatures could drop unexpectedly, which could lead to the frosting. Inevitably, frost can cause unprecedented damage to your dehumidifier.

This is why it could make sense to invest in a unit that comes with an automatic defrosting characteristic. To be more descriptive, if you expect the temperatures to go below 40 degrees Fahrenheit, this should be at the top of your priority list. This will prevent the coils from freezing.

  • Operating Temperature Range

What is the temperature range in the area in which you want to install your dehumidifier? The capability of operating at lower temperatures is, indeed, priceless.

And while the temperatures in your basement or warehouse might never go as low as 33 degrees Fahrenheit (or somewhere around that), you should get a unit that successfully operates in lower range temperatures. Of course, this applies if your basement doesn’t have a heating system or if you live in an area where it is quite warm throughout the entire year.

  • Drainage Functionality

Depending on the kind of unit you get, there are several types of drainage options. It’s up to you to select the one you think it is best suited for your specifications.

  • Gravity Drainage

For the most part, gravity drainage is more accessible. Nevertheless, this will require you to position the dehumidifier in the proximity of a floor drain, so that the water would flow down freely. If this isn’t a possibility for you, you can consider the other alternative – namely that of the pump drainage.

  • Pump Drainage

If you get a unit equipped with a built-in condensate pump, you have to attach a hose to the outlet port. Afterward, you should direct it to a sink nearby or, outside the window.

  • Water Tank Size

In order to keep your dehumidifier running, you will be required to empty the water tank regularly. And depending on the size of the tank, you will have to do this more or less often. Hence, if you have the space to spare, you should invest in a unit with a large water tank, so that you don’t have to empty it every couple of hours.

  • Timer

This is a useful feature to depend on. It is just as useful as the timer on your microwave or oven. It allows you to set the operating times of your dehumidifier. Another option would be to use the timer so that the machine runs just for several hours a day.

What is it that makes this feature so useful? For the most part, this won’t require you to be ever-present around the machine to start or stop it. If you rarely access your crawl space or basement, this is a must-have type of feature.

  • Auto Restart

After reading so many reviews, you’ve seen that many of the products we presented come with the auto restart feature. This is as simple as the name entails: the dehumidifier will automatically restart itself in the case of a power blackout. Afterward, it will resume functioning at the setting used before the blackout.

  • Continuous Mode

Many units come with a continuous mode – which allows you to run the machine round the clock. If this is something that appeals to you, make sure you check that the unit you get has it.


Frigidaire 70-Pint Dehumidifier
$$$11.6 x 15 x 24.4"47 poundsUp to 2500 sq ft745 watts• Ready-Select electronic controls • 24-hour on/off timer
hOmeLabs 4000 Sq Ft Dehumidifier
$$15.4 x 11 x 24.3"40 pounds4000 Sq FtN / A• 24-hour cycle • Automatically shut-off
Frigidaire Energy Star 70-Pint Dehumidifier
$$$12.3 x 17.3 x 25.5"46 pounds1400 sq. ft.420 watts• Continuous operation • Auto shut-off
Keystone 70 Pint Dehumidifier
$$$$$11.2 x 15.5 x 23.2"40 pounds4500 square feet720 watts• Auto-restart • 24-hour timer
Ivation 70 Pint Energy Star Dehumidifier
$$$15.4 x 10.8 x 23.2"
39.7 pounds4500 square feetN / A• Eco-Efficiency • Auto-Defrost, & Auto-Restart
Friedrich 70 Pint Dehumidifier
$$$$12 x 15 x 23.2"5.93 pounds1300 sq. ft.840 watts• 24 hr. ON/OFF timer • Auto-restart
Whynter Energy Star Portable Dehumidifier with Pump
$$$11.2 x 14.5 x 23.2"44 pounds3800 sq. ft.950 watts• Auto-restart and auto-shutoff • Auto-defrosting
Danby Energy Star 70 pint Dehumidifier
$$11.8 x 16.1 x 24.2"41.4 pounds4500 Sq Ftup to 500 Watts• 24-hour on/off timer • 2 fan speeds
BLACK+DECKER 70 Pint Energy Star Portable Dehumidifier
$$11.2 x 15.2 x 24.9"
50.5 poundsup to 3500 sq. ft.730 watts• Adjustable thermostat with digital display • 24 hour timer
LG Energy Star PuriCare 70-Pint Dehumidifier
$16.8 x 12.6 x 26.2"48.5 poundsup to 2000 sq. ft.690 watts• Automatic humidistat control, 2 speeds • Timer (up to 12 hours)

Care and Maintenance Tips

A common question we often get is: are there any special care and maintenance tips for dehumidifiers? Evidently, there are some practices you should be wary of if you want to prolong the lifespan of your appliance.

  • Clean the Water Tank Regularly

So, you must remember to clean the water tank regularly – aside from emptying it. In humid environments, mildew can quickly build up, which is why you should use a disinfectant for a thorough clean.

  • Clean the Intake and Exhaust Grilles

You should do this once per season – at the very least. That’s because debris and dust are likely to build up and lead to unwanted blockages that will deteriorate your dehumidifier. We advise you to use a vacuum with a brush attachment for the best results.

  • Adjust the Humidistat

Essentially, the humidistat is the device that regulates the humidity level inside a room. Make sure you adjust it accordingly so that you can use your machine for a prolonged time.

  • Correctly Position the Dehumidifier

Did you know that it is critical to position your dehumidifier correctly? You shouldn’t locate it closer than six inches to a wall. Otherwise, the air intake and exhaust will be blocked. Also, make sure you consider the temperature inside the room before selecting a unit.

  • Replace the Filter when Needed

And finally, a dehumidifier’s air filter is meant to clear the air from allergens and dust. Thus, it enhances the quality of the breathable air while protecting the appliance. This is why you should check the manufacturer’s recommendations regarding the filter replacement, as it is critical.

What Is the Most Efficient Way of Dealing with Crawl Space Air?

Most Efficient Way of Dealing with Crawl Space AirCrawl space air is imminently associated with lack of breathability, unpleasant odors and mold. This is widely due to the excess of moisture, oscillating temperatures, lack of appropriate insulation, and the list may go on. There are several strategies you could use to address this issue. Some are more effective than others.

  • Vent the Crawl Space to the Outside

Did you know that the outside air comes with higher moisture levels in comparison to the one in the crawl space air? However, if you live in a dry climate, this option might work for you. On the other hand, if you live in a humid area, this will aggravate your problems. In addition, if the HVAC system and ductwork are situated in the crawl space, you shouldn’t use this tactic.

  • Consider Supplying Air from the HVAC System

This is a common method utilized by many people. That’s because the air from the HVAC system contributes to diminishing the moisture levels in the crawl space. Still, if you do go down this route, it might be effective only during the summer, considering that the air conditioner’s capacity is large enough.

Nevertheless, during swing seasons, this method might turn out to be inefficient.

  • Exhausting Air to the Outside

Bear in mind that we’re not referring to locating large fans inside crawl spaces. In truth, we are talking about small exhaust fans, which can be surprisingly efficient. To be more precise, in a crawl space of roughly 2000 square feet, you would need a 40-cfm exhaust fan. The likelihood of this strategy’s efficacy is pretty low, but it could work in some cases.

  • Installing a Dehumidifier

Without a doubt, this is the most efficient approach. In essence, a dehumidifier can do wonders in enclosed crawl spaces where high moisture levels are problematic. Even if a high-quality dehumidifier is a notable investment, it is your safest bet. This way, you can rest assured that your indoor air won’t reach extremes – this will deter mold from growing on the surfaces.


AlorAir Basement/Crawlspace Dehumidifier
$$17.7 x 11.8 x 11.8"59.5 pounds1,300 Sq. Ft• Continuous 24-hour cycle • Automatically shut-off
AlorAir Basement/Crawlspace Dehumidifier 198PPD
$$$24.8 x 13.7 x 15.7"78.3 pounds1,300 Sq. Ft• Automatic Humidistat Control √ • HGV Defrosting
Dri-Eaz Revolution LGR Dehumidifier
$$$$12.5 x 21.5 x 12.5"61 pounds7,000 square feet• Automatic restart • Automatic pump-out
Aprilaire 1830 Pro Dehumidifier for Basement & Crawl Space
$$$25 x 12.5 x 14.5"67 pounds2200 sq. ft.• Automatic restart • Controlled levels of electricity
Drieaz Compact Dehumidifier
$$$$$24.5 x 13 x 19"65 pounds3500 sq. ft.• Automatic humidity control • Auto pump out
Ebac Compact Heavy Duty Dehumidifier
$22 x 12 x 12"50 poundsup to 1200 sq. ft.• Reverse cycle defrost • Adjustable control humidistat

Wrap Up

On a final note, investing in the best dehumidifier for basement or the best crawl space dehumidifier will save you from a lot of trouble. Humid, damp environments can cause irreparable damage to your house – even if you might not notice these effects right away, they will appear over the course of time. On top of that, your health will be affected, in the sense that damp, humid air triggers allergies in many instances. That’s because moisture facilitates the spread of germs and bacteria.

If the humidity level inside your basement or crawl space is higher than 50 percent – then this indicates there is a problem that requires your immediate attention. A dehumidifier will allow you to control the buildup of moisture so that the indoor air is free from harmful components.

For our guide, we’ve looked for the very best products on the market; this is why you can trust our basement dehumidifier reviews. So, which product seems to address your individual needs best? Do let us know!

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