6 of the best crawl space dehumidifier reviews

High humidity in the crawl space is a thriving ground for molds and mildew counterparts. Since this section of the home is usually sealed, ventilation hardly comes in, and thus, the addition of smelling odors that can trigger allergies. High humidity can also weaken the foundation of your house if not tackled on time. That’s why consumer reports (CR) have always advised homeowners to install a dehumidifier in their crawl space. It will help in protecting your crawl by removing water from the air. But in a situation where your crawl is continually wet, it is best to check and fix the underlying cause, as running a dehumidifier in this kind of condition may be inefficient.

best dehumidifier for crawl space consumer reports

Nevertheless, the right dehumidifier would do the job without leakages or water entry sources found within the space. But identifying the best crawl space dehumidifier can be time-consuming and daunting. Besides, if you don’t know the features that make up the best one, picking the wrong one is highly possible. Many exciting advertising messages can also mislead your chances of getting the right dehumidifier. For you not to waste your time and money, we’ve researched and shortlisted some tested dehumidifiers with warranty backup to enable you to have an option of returning if it fails to work effectively. But with an assurance of quality control test, no fears. We confide to present you with the best dehumidifier for crawl spaces reviews below.  

Product Name
Aprilaire E100 Pro
ALORAIR Commercial
Colzer Crawl Space with Pump
AlorAir Duct-able Version
CADPXS AppleAiro
MOUNTO Roto-Mold Compact
Image
AprilAire E100 Pro 100 Pint Dehumidifier for Crawl...
ALORAIR Commercial Dehumidifier 113 Pint, with...
COLZER Crawlspace Commercial Dehumidifier with...
AlorAir Duct-able Version Basement/Crawl Space...
CADPXS Crawl Space Dehumidifiers with Pump, 180...
MOUNTO 125Pints Commercial Roto-Mold Compact Crawl...
Price
$1,679.99
$587.48
Price not available
$1,147.11
$955.00
$699.99
Coverage Area
5,500 sq. ft,
1,200 sq. ft.
6,000 sq. ft.
2,600 sq. ft.
2,300 sq. ft.
7,000 sq. ft.
Pint/ Day removal
100
113
145
198
180
125
Warranty
Dehumidistat
Auto Restart
Auto Defrost
Buyer's reviews
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-
-
-
-
-
Product Name
Aprilaire E100 Pro
Image
AprilAire E100 Pro 100 Pint Dehumidifier for Crawl...
Price
$1,679.99
Coverage Area
5,500 sq. ft,
Pint/ Day removal
100
Warranty
Dehumidistat
Auto Restart
Auto Defrost
Buyer's reviews
-
Take Decision
Product Name
ALORAIR Commercial
Image
ALORAIR Commercial Dehumidifier 113 Pint, with...
Price
$587.48
Coverage Area
1,200 sq. ft.
Pint/ Day removal
113
Warranty
Dehumidistat
Auto Restart
Auto Defrost
Buyer's reviews
-
Take Decision
Product Name
Colzer Crawl Space with Pump
Image
COLZER Crawlspace Commercial Dehumidifier with...
Price
Price not available
Coverage Area
6,000 sq. ft.
Pint/ Day removal
145
Warranty
Dehumidistat
Auto Restart
Auto Defrost
Buyer's reviews
-
Take Decision
Product Name
AlorAir Duct-able Version
Image
AlorAir Duct-able Version Basement/Crawl Space...
Price
$1,147.11
Coverage Area
2,600 sq. ft.
Pint/ Day removal
198
Warranty
Dehumidistat
Auto Restart
Auto Defrost
Buyer's reviews
-
Take Decision
Product Name
CADPXS AppleAiro
Image
CADPXS Crawl Space Dehumidifiers with Pump, 180...
Price
$955.00
Coverage Area
2,300 sq. ft.
Pint/ Day removal
180
Warranty
Dehumidistat
Auto Restart
Auto Defrost
Buyer's reviews
-
Take Decision
Product Name
MOUNTO Roto-Mold Compact
Image
MOUNTO 125Pints Commercial Roto-Mold Compact Crawl...
Price
$699.99
Coverage Area
7,000 sq. ft.
Pint/ Day removal
125
Warranty
Dehumidistat
Auto Restart
Auto Defrost
Buyer's reviews
-
Take Decision

6 Best Rated Crawl Space Dehumidifier Reviews

1. Aprilaire E100 Pro 100 Pint Dehumidifier for Crawl Spaces

6 of the best crawl space dehumidifier reviews

On the impressing side of this Aprilaire 100, Stephen P. McCormack says, “for close to sixteen years, battle humidity and odor in his basement and has tried dehumidifiers of about $300 worth and hanging of multiple charcoal bags yet, none of them worked. But after installation of the E100, humidity level drops from 74 percent down to 54 percent and equally eliminate the odor within twenty-four hours of operation”.

It’s not surprising that such a review comes from a top buyer in 2021 because the E100 has been designed to deliver performance. Practically, the Aprilaire will wonder you on the amount of moisture it’ll take off crawling space up to 100 pints per day without you emptying the tank manually. Collected condensation is discharged via a continuous hose into your drainage.  

The set and forget operation mode is an effortless way to operate a dehumidifier of this kind. You can set the desired humidity level to be left in the crawl section. Once the target level goes above the set range, the Aprilaire turns on automatically to remove the excess portion. It is also energy efficient, dehumidifying up to 100ppd at a reduced cost. Therefore running this dehumidifier will not impact your energy bill.  

There is no messy water situation to experience, built to withstand corrosion and rust. It is compatible with a 110-120v AC single phase of 60 Hz power source but not with a 50 Hz source. The purchase includes five years secured warranty. You may also be entitled to free shipping, depending on your location. 

While you may need to pay for installation cost or do-it-yourself, only if you’re tech-wise, however, Rob was pleased with the quality. Most especially runs quietly discharging condensation. 

“I’m happy the unit keeps my 2800 square feet coastal Carolina home at 55-60% RH,” says Rob. 

From testing to the numerous consumer reports analyzed, we say Aprilaire is one of the best bets for a dehumidifier for crawl space.

2. ALORAIR Commercial Dehumidifier with drain Hose for Crawl Spaces

ALORAIR Commercial Dehumidifier with drain Hose for Crawl Spaces

If you can’t afford the previous unit, this Alorair could be your next option. It’s more budget-friendly compared to the Aprilaire. Even buyers consider it as a wise investment,” says Joseph. 

Travis Pape, a do-your-self crawl space encapsulation expert, affirms that the Alorair works hard. Likewise, our checking and testing confirm the robust performance of the Alorair crawl space dehumidifier.  

Most importantly, the unit allows you to set the desired humidity level. So each time the set level is reached, it turns off automatically, and when the moisture levels increase, it restarts to begin the dehumidification process. You can set the target humidity level between (30 – 90) percent as you wish. 

It features intelligent and continuous operations settings because it will automatically turn on after power outages. The auto defrosting protects the unit coil from extremely low temperatures, and 6.5-inch host dumps collected water outside your facility. 

The manufacturer recommends it for a space coverage of 1,200 square feet for best results. For peace of mind comes the Alorair with multiple warranties up to 5 years and ETL listed as well. Apart from the quiet operation, the handle makes it easier to transport.   

It looked well manufactured and packed, just installed and start dehumidifying – according to elaY, a verified user. 

3. Colzer Crawl Space Dehumidifier with Pump

Colzer Crawl Space Dehumidifier with Pump

“An excellent crawlspace and attic dehumidifier,” – says Magna, who bought a unit of this Colzer dehumidifier in 2021. On installing and operating, He said it had decreased the humidity level in my crawl space from 80% to 32% in one week. The drain pump works excellently in extending the water over an 8 feet wall with the help of a continuous hose. Since the installation, my wife has not noticed it because of the super-quiet operation.

D. Poynter’s house is constantly damping because it was built lower to the ground (like ancient buildings). And has always been facing humidity problems but decided to give this Colzer a try. The buyer couldn’t believe the humidity issue was fixed within seven days of running the dehumidifier. Since its 900 watts energy rated makes it low cost to run continuously.

If you can squeeze out money, getting this unit will maintain the space underneath your house against humidity worries. It is also suitable for basement and commercial environments settings. For water damage restoration, you can rely on this dehumidifying appliance.

The coverage capacity is up to 6000 square feet while removing at least 140 pints daily at a 205 CFM air flow rate. It works perfectly between 30 – 80% degree humidity conditions. You can set an ideal humidity level to avoid over-dehumidification. It’ll restart to dehumidify once humidness goes beyond the set level. Also, the Colzer is compatible with an optional external dehumidstat control but sold separately. This remote control lets you read the current humidity and temperature of the dehumidifier and let you set the desired moisture and timing at the convenience of your space.

For the draining method, you can opt for either gravity drain or use the external pump option in case of unforeseen pump failure. A 16 feet long hose comes with this package. Compared to the previous units, this comes with only two years.  

4. AlorAir Duct-able Version

AlorAir Duct-able Version

Checking this duct dehumidifier, this Alorair is quite expensive compared to the 133 pints model. You’ll need a budget of up to two thousand dollars plus. If you don’t have the capacity, do not break the bank, other lower-priced units can still do the job of humidity control. The versatile use such as crawl space, garages, large spaces, storage area, or commercial settings makes it a multi-point of use appliance. 

Per day, the Alorair will extract 90 pints at AHAM condition and, at saturation, will withdraw up to 198 ppd. It is ideal for a 2,600 sq. ft coverage area. More so, its heavy-duty condensation pump ensures the unit runs smoothly as it continuously pushes out extracted water. As a ducted dehumidifier, you can attach it to both return ducts and supply ducts as the case may be. Operating will be effortless when needed most with the optional responsive remote monitoring function. With a temperature as low as 36 degrees, this dehumidifier can work optimally without being affected by frost buildup, thanks to the auto defrosting function. This makes the appliance works efficiently and nonstop. Also, its defrosting ability prolong the lifespan. 

The USA brand is an energy star-certified dehumidifier, which will save you the cost of dehumidification for long hours of use. It comes with five years warranty, your purchase of this unit will be secured, and with active customer support, any matter rising will be duly be addressed promptly.

Many buyers love this Alorair because it can operate in a temperature range of 33.8 t0 114 degrees Fahrenheit, whereas most units will stop working under such weather conditions. 

According to Patrick L Beauchene, it works great! I installed this unit in my 2,500 square feet crawl space, where the humidity level is around 76 -78 %. On setting it up and running it within five days, the humidity level has gone down to 50 percent, as outstanding performance for the dollars spent. However, installing this device may require an expert connection, unless you’re good at DIY do-it-yourself) 

5. CADPXS AppleAiro 180 Pint for CrawlSpace with Pump

CADPXS AppleAiro 180 Pint for CrawlSpace with Pump

This is ideal for use in large crawl spaces, job sites, basement, garages, and water-damaged areas. If your space is up to 2,300 sq ft, the CADPXS is a workhorse for such square feet.

Based on the prevailing weather, this unit can expel about 180 pints at saturation and 85 pints at AHAM, depending on the moisture condition. As it removes water from the air, the internal pump helps dispose of the collection where you want it. But it is wise to drain it far away from your building, so the water doesn’t get back into your foundation, as this can compromise the integrity.

Most relevantly, real-time monitoring. There is no to keep an eye on a dehumidifier every time. This unit lets you adjust the humidity level desired, and it’ll maintain it accurately. For instance, your chosen setting is 50%, which means your dehumidifier stop working once that level is reached; otherwise, it’ll kick back to operation when it’s above 50 percent.

It displays initial and output relative temperature humidity (RH) and is also helpful in tracking the hours it has worked. It also features a convenient mobility handle and a metal-enclosed body to prevent corrosion and rusting.

Consequently, this appliance is not from a renowned brand as such customer service assistance may not be as far as it might’ve been with more prominent brands. We’ve to address this matter as some buyers were not pleased with the delay in response to their issues. Nevertheless, Nigel Williamson is one of the happy customers. 

6. MOUNTO 80Pints Roto-Mold Compact

MOUNTO 80Pints Roto-Mold Compact

The Mounto delivers protection to high humid areas, whether basement or crawl space. Compact design fits into more little, or tight corners yet can dry out water faster in coverage reaching 7,000 square feet. It can withdraw 125 pints per day (71 liters) at 90 degrees Fahrenheit and 80 pints per day (45 liters) at 80 degrees Fahrenheit.

In real-time, you’ll be able to view the relative humidity (RH), inlet, and outlet temperature range present in your facility via the control panel. This unit does not require any installation. Out of the box ready to use says “Verified Customer.”

Zhang says excellently built, looks durable, and is worth the money. In addition, easy to operate and removes water effectively. The internal pump drains water automatically.

It is not as quiet, though, but the great unit, the reports coming from Robert Weber.

According to consumer reports and our takes on it, the assumption is far-fetched on the efficient performance of the Mounto dehumidifier. In summary, the Mounto is also ideal for kitchens and bathrooms where humidness causes problems.

How To Pick The Best Crawl Space Dehumidifier

The saturation of dehumidifiers in the market makes it challenging to choose the right appliance for a specific crawl space size. Why you’re looking for one to buy is an excellent step to protecting your house from humidity problems. A few basic things to consider, and missing any of these could undermine the rate of results of the chosen dehumidifier. Therefore, note the following as critical:

  1. Coverage size 

You’ll agree that every crawl space below the house level is enclosed. As such, it has a fixed size, and it’s wise to know the measurement in square feet. Peradventure, you don’t known the size of your crawling areas, do the simple calculation using the formula as follows:

Crawl Space (CR) = (L X B), leave your answer in square feet. 

Where L = length, B = breadth 

For example, a supposed facility has an underground space with a Length = 100ft and a width of 12ft. 

We say, 

CS = 100 ft x 12 ft = 1,200 square feet. 

This indicates a minimum dehumidifier of 1,200 sq. ft. is required to protect such space against water prevalence. 

Therefore, depending on the size of your property, choose accordingly.     

2. Pint Capacity 

Pints in dehumidifiers refer to the amount of moisture a particular unit can remove per day. For residential units, 10 – 70pts machine is a good choice, but for crawl space, commercial and industrial areas, 70 pints above should be your consideration.   

3. Drain Method 

For a unit that comes with a tank, you’ll need to empty water frequently, unlike dehumidifiers that can automatically empty condensation via the drain pipe. More so, a crawl space dehumidifier with a drain hose or pump will be preferable to avoid the machine interruption when working due to a full tank and free the stress of manual disposal of water. 

4. Dehumidistat:  

This feature will allow you to set the desired humidity as you wouldn’t want your space to be over dehumidified. Hence, the machine automatically shuts off when the set level is reached. And also, if there is a rise in air moisture, the appliance will restart again.   

5. Auto Restart / Defrost 

Its ability to restart after a power outage makes things easier as you can’t be going into your crawl every time to turn on the machine manually. At the same time, an auto defrosting function will keep the device against frost build-up, especially if you’re living in a low humid environment. 

6. Additional Features 

Ensuring your proposed unit comes with a handle will help ease transporting. What to consider also include security. Ensure there is a warranty back up to 5 years s reasonable period. Noise levels should also be considered. 

Summary

It is good to install a dehumidifier in the crawl space underneath your house because it helps dry water, deter rodents, and pests that like wet surroundings. You’ll also be preventing molds, mildew, and smelling odors menace. In this regard, if you’re looking forward to buying one, the right choice must be purchased. 

What dehumidifier does consumer reports recommend?

The review section above discussed the top six products with supporting user references. We believe reading through the reviews will make you understand each of them, and this will guide you on the right path to decision making. 

If you’re unable to come up with a choice at the end of the day, you can reach out to us for a recommendation via feedback@consumerreportsmag.com