Having a crawl space in your house is good because it can serve different purposes. The crawl space many use it for various home installation sections for duct system mounting, electric wiring, plumbing, and others. But sometimes humidity can make it uncomfortable for you to go inside to do some menial activities. 

If your crawl space lacks venting (that is opening), humidity is going to settle down as there is no place for it to move out. As such, homeowners are being advised to install a dehumidifier in their crawl space as a preventing means for moisture building up. A case study of the best dehumidifier for crawling areas carried out by our team of experts, Sate fan dehumidifier was seen, as one of the best crawl space dehumidifier among the list. Notwithstanding, dealing with allergens, bacteria, mold, and mildew resulting from the dampness of air can be resolved in no distance time using this appliance. We, therefore, present our crawl space dehumidifier reviews to help you find the best product.  You may also, read our best most efficient commercial dehumidifier for construction sites useful.

Best Crawl Space Dehumidifier Comparison

Product Name
Features  
Overall Best: AlorAir Basement/Crawl space
Overall Best:AlorAir Basement/Crawl space Dehumidifier Check Price

  • Price: $$$$$
  • Coverage: 2,600 sq. ft.
  • Output/day: 120 pints
  • Weight: 57.3 pounds
  • Dimension: 23.2 x 15.2 x 17.7 inches




OUR REVIEW
Best Affordable: AlorAir Basement/Crawlspace 198PPD
Best Affordable:AlorAir Basement Check Price

  • Price: $$$$$
  • Coverage: 2,600 sq. ft.
  • Output/day: 120 pints
  • Weight: 50.3 pounds
  • Dimension: 23.2 x 15.2 x 17.7 inches




OUR REVIEW
Best Pump Unit: Dri-Eaz Revolution LGR Commercial
Best Pump Unit: Dri-Eaz Revolution LGR Commercial Dehumidifier with Pump Check Price

  • Price: $$$$$
  • Coverage: 7,000 sq. ft.
  • Output/day: 80 pints
  • Weight: 65 pounds
  • Dimension: 12.5 x 21.5 x 12.5 inches




OUR REVIEW
Best for Low Temperature Areas: AlorAir LGR with Built-in Pump
Best for Low Temperature Areas: AlorAir LGR Dehumidifier with Built-in Pump Check Price

  • Price: $$$$$
  • Coverage: 2,300 sq. ft.
  • Output/per day: 190 pints
  • Weight: 78 pounds
  • Dimension: 22.8 x 13.7 x 17.3 inches




OUR REVIEW
Best for Homes & Crawl Space: Aprilaire 1830 Pro Dehumidifier
Best for Homes & Crawl Space: Aprilaire 1830 Pro Basement Dehumidifier Check Price

  • Price: $$$$+
  • Coverage: 3,800 sq. ft.
  • Output/day: 70 pints
  • Weight: 67 pounds
  • Dimension: 25 x 12.5 x 14.5 inches




OUR REVIEW
Best Recommendation: Dri-Eaz PHD 200 Commercial DehumidifierBest Recommendation: Dri-Eaz PHD 200 Commercial Dehumidifier with Pump check Price

  • Price: $$$$
  • Coverage: 1,500-cu. ft.
  • Output/day: 120 pints
  • Weight: 0.01 ounces
  • Dimension: 12.5 x 12.5 x 17.63 in




OUR REVIEW
Best Price Offer: MOUNTO 80Pints Commercial Roto-Mold Compact Crawl-Space dehumidifier
Best Price Offer: MOUNTO 80Pints Commercial Roto-Mold Compact Crawl Space dehumidifier Check Price

  • Price: $$$
  • Coverage: 7,000 sq. ft.
  • Output/day: 80 pints
  • Weight: 65 pounds
  • Dimension: 21 x 13 x 16 inches




OUR REVIEW

Reviews of 5 Best Crawl Space Dehumidifier

1. Overall Best: AlorAir Basement/Crawl space Dehumidifier – Sentinel HD55

Overall Best:AlorAir Basement/Crawl space Dehumidifier

The AlorAir Crawl space Dehumidifier features a hot gas valve defrosting system. This defrost functioning makes it possible for this unit to work effectively in areas with temperatures as low as 36 degrees Fahrenheit. The humidifier is suitable for continuous usage, and you don’t have to worry about it breaking down or using up too much energy. Also, can extracts water from an environment measuring up to 2,600 square feet with a humidistat and this let you achieve desired humidity levels in your crawl-space.

This AlorAir Basement/Crawl Space Dehumidifiers 198 PPD is built for use in modern homes and comes with lots of features that aids efficiency, performance, and convenience. You can set and adjust the desired moisture level. The unit has a remote control for ease of operation and an auto pump system that helps to get rid of condensed moisture. It also uses advanced technology to minimize the risk of damage from corrosion and leakages ensuring long term usage with minimal maintenance required.

Our + for this

  • Suitable for use in rugged conditions
  • Low-temperature operation thanks to an HGV Defrosting system
  • Remote control and monitoring system
  • G3 filter for odor reduction

Our minus for this

  • It is a little heavy
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2. Best Affordable: AlorAir Basement/Crawlspace Dehumidifiers 198PPD

Best Affordable:AlorAir Basement

If you live in an area where the temperature tends to get low, then this is one of the best humidifiers to consider. Thanks to its hot gas valve defrosting system, this unit can work continuously even at low temperatures without having to stop periodically like other dehumidifiers would under the same condition.

The 198PPD is also highly energy-efficient, allowing 24 hours continuous use without pushing up your electricity bills too high. This unit can remove up to 198 pints of water per day and cover up to 2,600 Sq.Ft of space quite effectively. It is also built to be durable and has a remote control and monitoring system for convenient use.

Our + for this

  • Internal corrosion protection
  • Low-temperature operation
  • Remote monitoring
  • Saves space

Our minus for this

  • Has not built-in-pump
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3. Best Pump Unit: Dri-Eaz Revolution LGR Commercial Dehumidifier with Pump

Best Pump Unit: Dri-Eaz Revolution LGR Commercial Dehumidifier with Pump

If you’re looking for a unit that can dehumidify large areas fast, this is one of the best options to consider. The Dri-Eaz Revolution LGR revolution commercial dehumidifier can remove humidity in areas up to 7,000 square feet effectively compared to most dehumidifiers on the market ye utilize the low amount of energy.   One of the best things about this high-performance unit is that it fits into a variety of places and ideal for under different temperature conditions.

Not only does this Dri-Eaz Revolution LGR Commercial Dehumidifier for Industry, crawlspace, and basement display the temperature and current humidity conditions in a room, but also features an in-built humidistat which makes it possible to set the desired humidity condition. The unit also features an automatic restart after a power outage, and an auto pump features help to remove condensed water without stress.

Our + for this

  • Suitable for large areas
  • Fits into tight spaces
  • Removes up to 17 gallons of water
  • 6 years warranty

Our minus for this

  • This unit is a bit pricey
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4. Best for Low Temperature Areas: AlorAir LGR Dehumidifier with Built-in Pump

Best for Low Temperature Areas: AlorAir LGR Dehumidifier with Built-in Pump

The AlorAir LGR Dehumidifier is a highly efficient unit and suitable for removing moisture over a wide temperature range of 33-105 degrees F. It is in-built with a hot gas defrosting system that helps to defrost the coils efficiently within a short time. Under saturation conditions, this humidifier can remove up to 190 Pints of water per day.

This AlorAir LGR Dehumidifier with Built-in Pump, for Water Damage Restoration, comes with several digital features including a humidistat control and a timer. For extended lifespan, this dehumidifier has an inbuilt epoxy coated coils that prevent from moisture build-up

The coating helps to maintain the coil’s heat transfer capability. The AlorAir LGR is also designed to be waterproof, thanks to a sealed circuit board.

Our + for this

  • Fits into small spaces
  • Energy-efficient unit
  • Waterproof design
  • Humidistat control and digital timer

Our minus for this

  • You might find it a little too heavy
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5. Best for Homes & Crawl Space: Aprilaire 1830 Pro Basement Dehumidifier

Best for Homes & Crawl Space: Aprilaire 1830 Pro Basement Dehumidifier

The Aprilaire 1830 basement dehumidifier is designed to be durable. This unit has been built under a quality manufacturing process and features durable aluminum coils that are resistant to corrosion, and this ensures that the dehumidifier serves your needs for a long time to come.

The Aprilaire 1830 Pro Basement Dehumidifier, 70 Pint Commercial can be used under a wide range of conditions, especially in sealed crawlspaces and basements.  You will be surprised at how easy installing this unit is.

The control panel can be mount on top or the side of the humidifier, depending on which one is more convenient to access for you. It has an auto drain feature that helps to remove water, so there is no need to empty the train manually. 

Our + for this

  • It is Built to last
  • Easy setup
  • Auto-drain pump

Our minus for this

  • Not compatible with 50 Hz power sources.
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6. Best Recommendation: Dri-Eaz PHD 200 Commercial Dehumidifier with Pump

Best Recommendation: Dri-Eaz PHD 200 Commercial Dehumidifier with Pump

The Dri-Eaz PHD 200 is a commercial-grade dehumidifier designed to get rid of excess moisture in basements, crawl spaces, garages, and other tight spaces. The unit features an auto pump-out feature, which helps to empty the tanks seamlessly, making the continuous operation of this dehumidifier quite seamless.

Dri-Eaz PHD 200 also has a humidistat, which makes it possible to set the target humidity for effective humidity control. This dehumidifier also has an easy to read control panel for effective monitoring. The digital touchpad control panel displays in 4 languages.

Our + for this

  • Compact for easy transportation,storage, and installation
  • Digital dial pad controls
  • Auto pump-out feature

Our minus for this

  • It is quite pricey

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7. Best Price Offer: MOUNTO 80Pints Commercial Roto-Mold Compact Crawl Space dehumidifier

Best Price Offer: MOUNTO 80Pints Commercial Roto-Mold Compact Crawl Space dehumidifier

The MOUNTO 80Pints crawl space dehumidifier is small, light, and compact. Yet it delivers just as effectively as large units. This MOUNTO 80Pints Commercial Roto-Mold Compact Crawl Space Basement Dehumidifier with Pump can remove up to 17 gallons of water per day and dry out an over-saturated area as fast as possible. It can dehumidify rooms as large as 7000 sq. feet and is perfect for tight spaces in bathrooms, kitchens, and crawlspaces of any size.

One of the best features of this unit is how easy it is to monitor indoor humidity conditions while the dehumidifier works. The control panel displays the inlet and outlet temperature of your surroundings, as well as the outlet’s depression, all in real-time. It comes reasonably price. The MT125 is the most affordable option on our list.

Our + for this

  • Compact and lightweight
  • Dehumidifies crawl spaces fast
  • Affordable unit

Our minus for this

  • It doesn’t come with clear instruction and user manual
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Importance of Using a Crawl Space Dehumidifier                

Your crawl space may seem like an insignificant part of your property, but it serves an important engineering and architectural purpose to any property. Excessive moisture in the crawl space can pose a serious problem to the integrity of your property. A high-moisture environment is the perfect breeding ground for mold, mildew, and mites. Since most homes are built with timber, a mold infestation will cause the wood to rot and decay. This will put your home at risk by weakening its foundation. Also, too much moisture in your crawlspace may increase the moisture level in the rest of your home. This will cause humidity problem that may affect the health and comfort of people living in your home as well.  

Choosing the Best Crawl Space Dehumidifier without Making a Mistake 

  • A simple search online for the best dehumidifiers will turn up tons of options. While a lot of them are of standard quality, some are not so good. Also, because, dehumidifiers are typically built for a variety of environments and rooms, choosing the perfect one for your needs can be a little tricky. Here are some tips that can help you make this decision easily without making too many mistakes.
  • Humidity removal: Of course, this is one of the most important criteria to look out for since this is essential when you are buying a dehumidifier for the first time. The crawl space is known to be large and covers the entire footprint of your home. Hence, you must choose a unit that can remove moisture effectively. 
  • Hence, you must choose a unit that can remove moisture effectively. One important thing to consider is the volume of your crawl space. Measure this, then compare it to the moisture removal capacity of any model you are considering. Typically, a unit that removes up to 70 pints of water per day is ideal for most crawlspaces. However, if your home is bigger – then you need one that can remove as much as 95 pints or more. 
  • Energy Efficiency: Dehumidifiers usually work for long periods at a go. Therefore, it means you want a unit that is as energy-efficient as possible. As such, you don’t end up spending too much on energy bills than you should.  
  • Noise Output: one of the most common regrets people have about dehumidifiers, is buying one that is too loud for comfort. It is not enough for the unit to serve its purpose, it should do so, without disturbing you too much in the process. The fact that you want to use it for your crawl space doesn’t mean it should be noisy.  
  • Drainage: buying a dehumidifier with an auto-drainage system is important if you will be installing it in your basement or crawl spaces. You don’t want to make t to your crawl space every day to remove condensed water. Instead, buy a unit that offers the convenience of an automatic continuous drainage system. 
  • Digital control: most dehumidifiers now come with digital features. Not only does this make it possible to set the desired humidity level, but some units also have remote control and monitoring features. This helps to conveniently monitor the unit without going down to your basement or crawl space now and then. 
  • Low-Temperature Operation: An auto-defrost function ensures that the device continues working even when the temperature becomes too low, which is usually the case in crawl spaces. 
  • Compact size: while crawl spaces can be large, the height is usually low as well. Hence you need a unit that will take up minimal space. Go for a compact and lightweight dehumidifier for convenience.  
  • Auto Reset: an auto-reset feature helps to restart the humidifier after a power outage occurs without changing its original preset function. This feature also saves you unnecessary trips to the basement to keep the unit running. 

Different types of dehumidifier for crawl space

Desiccant dehumidifier: a desiccant is a chemical substance that absorbs water molecules. A common example is the small balls of silica gel typically included in medicine containers, electronics, clothing, and other products that need to be kept dry. You can purchase packets of desiccants like bentonite clay or silica gel and place them in your crawlspace. There are also electrically powered humidifiers that use desiccants to dehumidify rooms.  

Refrigerant dehumidifiers: these types of dehumidifiers remove moisture from the air through the process of condensation. Moisture is removed from humid air in a room as it blows over a refrigerated/cooling coils. This condensed liquid is collected in a reservoir. Most refrigerant dehumidifiers have digital controls and humidistat that let you regulate the humidity level automatically. 

What is the right crawl space humidity level? 

Excess humidity in crawl spaces can lead to a variety of problems. This is why you must keep humidity level especially in crawl spaces under control. Generally, people feel comfortable when the humidity level is between 30 to 50%. Molds are also more likely to grow in your crawl space if the humidity level exceeds 50%. Hence the optimum humidity level you should target for your home should be 50% or slightly less. 

Ways to Get Rid Of Moisture in Crawl Space

Excessively high humidity levels can pose a serious threat to your building, your properties, and even the people living in it. Hence, if you have high humidity problems, it is recommended that you make every effort to put it under control. You can do this effectively through a two-stage process of encapsulation and using a dehumidifier.

Encapsulation: encapsulation is the process of closing up your crawl space to control how much moisture can get into it. This is an energy-efficient and highly effective approach to humidity regulation. 

Dehumidifier application: a dehumidifier is an appliance that removes excess moisture from the air, collects it, and drains it out to keep the humidity level under control. This can be through using a refrigerant or by desiccation. Encapsulating your crawl space and removing excess moisture with a dehumidifier will help bring humidity levels under control.  

Do-it-yourself crawl space dehumidifier installation Guide

Most crawl space dehumidifiers can be installed with little or no technical knowledge. Simply follow the installation guide in the user manual and you should be good. Usually, the two installation option available is either the wall mount option or ceiling mount. Most manufacturers offer an optional wall mount kit with their unit. Be sure to buy this and any other accessories required for installation.

Before you begin the installation, inspect your crawl space to find the perfect installation area. It is recommended that you pick a spot that is easily accessible especially for maintenance purposes. You should also ensure that your dehumidifier is located in a central position. This helps the unit to operate more efficiently and remove moisture faster. 

Additionally, another location consideration is proximity to a drain. This is important for the removal of condensed moisture from your crawl space. Finally, it is also important that you install your unit in a place free from obstructions of any kind. Debris and dust should be removed before installation as well. This will reduce the chances of ending up with a clogged filter. 

Wrapping it up:

The above comparison table is our recommendation for the best crawl space dehumidifier.

Despite the scope of dehumidifiers tested and analyzed, we were still able to figure out our top listed products. 

Since you’ve gotten to this stage of the discussion, we believe with the help of our crawlspace dehumidifier reviews is going to help you find not just an ideal but the best unit.