Best Crawl Space Dehumidifier for Fresh Basements

Ian Mutuli
Updated on
Ian Mutuli

Ian Mutuli

Founder and Managing Editor of Archute. He is also a graduate architect from The University of Nairobi, Kenya.
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You might be wondering: what exactly is a crawl space dehumidifier? They are expected to help in eliminating the extra moisture and they aim at high humidity indoors. Humidity levels in your crawl spaces should be high since they are responsible for causing many unfriendly occurrences in your house. Some of the ramifications of such effects include; heavy odors in your house, incidences of mold, allergy arousers, pest infestations, and structural complications. Therefore, any homeowner should consider proper care of their crawl space moisture problems is very important. This is advantageous to your crawl space because fewer conditions are favorable for most fungi, heavy odors, bacteria, and all the problems you mentioned. Also helps to replace fresh and clean air in your home with stale and stuffy one when needed.

It may not be easy to find a good crawl space dehumidifier to use in your crawl spaces. Crawl space dehumidifier size should be grouped based on how many pints of water it will be able to take from the air within the certain duration of twenty-four hours. If so then the 30 pint crawl space dehumidifiers draw 70 pint moisture daily and the 70 pint dehumidifiers draw 70 pint daily. More to a pint is equal to 0.125 gallon or 0.47 liter.

Our Top Picks- The Best Crawl Space Dehumidifier

1. MIDEA Dehumidifier

Sale
Midea 4,500 Sq. Ft. Energy Star Certified Dehumidifier...
  • 4,500 SQ. FT. DEHUMIDIFIER – Removes up to 50 pints of moisture...
  • ULTRA QUIET OPERATION – This model has quiet operation as 47...
  • ENERGY STAR CERTIFIED- This unit is ENERGY STAR Certified and is...
  • SIMPLE DRAINAGE – Simply empty the water tank when it is full...
  • EASY TO USE – This unit was designed with a clean, sleek look...

This MIDEA MAD50C1ZWS Dehumidifier is a worthy device, which received an Energy-Star certification from the Environmental Protection Agency. This was found to be more beneficial than most other machines available in the market. Besides, it was very convenient and it did not have an overloaded structure and a rough appearance. This 70-pint model was the largest of the original four models in this particular series. It also exemplified a workhorse dehumidifier with disposable and permanent filters.

Going larger than the recommended one was worthwhile, as it lasted longer. This crawl space dehumidifier is easy to incorporate within home design strategies. The Crawl Space dehumidifier in the total area of 4, 500 sqft (418.06m) of the crawl space was able to collect up to a maximum of 70 pints (32.9 liters) of water per day. Also, this was a pleasant choice for use in the basement, bedroom and other crawl spaces we may have in our homes.

The residual moisture remained difficult to dry at cooler conditions, which required a vertical air movement pattern. Consequently, the crawl space dehumidifier was faster and very efficient due to the initiative. The only drawback in such a model is that it requires a water pump. 

Pros:

  • Extremely Quiet
  • Has handles and wheels for easy transport
  • High Affordability and Huge Coverage Area
  • Great value for a 70-pint dehumidifier

Cons:

  • Improper care triggers the growth of mold
  • Runs hot when used for long periods

2. Waykar 150 Pints Energy Star Dehumidifier

Sale
Waykar 150 Pints Energy Star Dehumidifier for Spaces up...
  • 【Waykar Dehumidifier For Spaces Up To 7,000 Sq. Ft】 Our...
  • 【Energy Star & Self-Drying & Auto Defrost】This Energy Star...
  • 【Various Drainage Options】 Two drainage methods are provided...
  • 【Easy to Operare & Control Lock】 By integrating a smart...
  • 【Support】 All of Waykar Dehumidifiers are covered with...

The Waykar 150 Pints Energy Star Dehumidifier is designed as a powerful, all-purpose appliance for eliminating humidity in rooms of up to 7 thousand square feet. It is perfect for both commercial, industrial and residential areas such as in warehouses, basements, and even bedrooms.

Auto-defrost, self-drying mode, and continuous drainage through a drain hose are embedded in this unit to help the unit in its low maintenance functionality. The Energy Star certification ensures time- tested measures for energy conservation resulting in long-term energy saving.

The Waykar 150 Pints Dehumidifier is large capability, energy-saving dehumidifier for large buildings, offices, and homes with high humidity levels. Although it is not the most silent or transportable machine, it has several functions that allow it to be a long term investment for large spaces.

Pros:

  • Has an auto-defrost feature 
  • Self-drying mode prevents internal mold buildup
  • Energy Star certified, ensuring efficient power consumption
  • Drain hose included for hassle-free continuous drainage

Cons:

  • Noise levels can be disruptive at higher speeds.
  • More expensive than standard residential units.

3. AlorAir 55-Pint Crawl Space Dehumidifier

Sale
ALORAIR Basement/Crawl Space Dehumidifiers Removal 120...
  • ????120 PPD Dehumidifier-quickly and effectively removes moisture...
  • ????Automatic Defrost-a quick and efficient defrosting process,...
  • ????INTERNAL CORROSION PROTECTION-an advanced technology to...
  • ????DESIGNED FOR THE MODERN HOME-for the satisfaction, we...
  • ????5 Years Warranty & safety tested. Our sentinel HD55...

For more compact spaces we highly recommend the AlorAir 55-Pint Crawl Space Dehumidification System. This is due to it small size and flexible shape that can fit into any compromised area.

This makes it ideal for crawl spaces or basement because, with this product, you’ll need a couple of additional fasteners, which are easily ordered and available in most home stores.

They drain up to 55 pints of water per day and are suitable for use on up to 1300 square feet. This has more; it shuts off automatically once the set humidity level is attained by the surrounding.

Pros:

  • Compact and Rectangular Design
  • Internal Corrosion Prevention
  • Automatic Drainage
  • Set Desired Humidity Level
  • Odor Control Filter

Cons:

  • No Pump included
  • Noisy

4. ALORAIR Commercial Dehumidifier, Sentinel HD55

ALORAIR Commercial Dehumidifier 113 Pint, with Drain...
  • 113 PINT DEHUMIDIFIER: AlorAir Sentinel HD55 commercial...
  • SUPER CONVENIENT USAGE: This high-quality dehumidifier is...
  • AUTO DEFROSTING SYSTEM: Auto defrosting is important, as ice...
  • SAME FIT FOR CRAWL SPACES: We designed this professional...
  • Compact Design Crawlspace Dehumidifier: All our high-quality...
With a dehumidifying capacity of 113-pint daily, the ALORAIR Sentinel HD55 Commercial Dehumidifier is perfect for crawl spaces, basements, and industrial water damage restoration. It is easily movable due to its compact design making it suitable for small spaces, other features that improve on its usability are; auto defrost and the drain hose used for continuous drainage. This unit is planned for fighting back with mold, mildew as well as moisture problem areas and therefore provides more durability in harsh situations.

The ALORAIR Sentinel HD55 is a sleek but very efficient dehumidifier, perfect for use in business premises or houses with high humidity issues. Though it is not equipped with stumbling smart controls, it possesses efficiency, sturdiness, and energy saving which makes it preferable to restorations personnel as well as homeowners.

Pros:

  • Compact and portable
  • Auto-defrost feature prevents coil freezing in colder conditions.
  • Energy-efficient design for long-term, cost-effective operation.

Cons:

  • Louder operation may be disruptive in quiet spaces.

5. BaseAire AIRWERX55Basement/Crawl Space Commercial Dehumidifier

BaseAire AirWerx55 Dehumidifier for Crawl Space...
  • 1. [120 Pints Dehumidifier ] Removing up to 55 pints of water per...
  • 2.[ Easy-to-use Dehumidifier ] Plug it in, set the target...
  • 3.[ Auto-Defrost & Memory Restare Function ] Auto defrost...
  • 4.[ Portable Design & Compact Size ] Dehumidifier ideal for Crawl...
  • 5.[ Quality Support & Good Service ] All BaseAire Dehumidifiers...

If you need a best crawl space dehumidifier for hot and humid climates then you should go for Baseaire AIRWERX55. It substantiate excess moisture within a room, or rather brought the level of humidity within a desirable range.

However, it should be used on small and medium rooms containing the kitchen, baths, basement, and laundry. We appreciated its self-uses that include defrosting and hum and basically an adjustable humidistat memory saver. It could turned itself off after reaching the desired humidity level by itself.

The highlight of the Baseaire AIRWERX55 is the tube evaporator. Also, it has a rare earth alloy and auto-defrosting ability to work during the cold seasons for its users. This also has a filter which stopping any particles from getting into the dehumidifier.

Pros:

  • Runs smoothly in low temperatures
  • It uses filters to clean the air

Cons:

  • It is heavy

Benefits Of Using A Crawl Space Dehumidifier

  1. The best crawl space dehumidifiers assist in maintaining good humidity in the house.
  2. A crawl space dehumidifier eliminates items such as molds, fungus, and bad odors within the crawl space. As far as getting rid of them is concerned it is really very important since they are responsible for numerous respiratory problems.
  3. These they particularly impact the kids and the elderly. Moreover, the use of dehumidifiers will keep moisture levels low which ensure that anymore asthma causing symptoms will be brought about.
  4. When dehumidifiers pull humidity out of the air throughout your homes, it becomes less complicated to safeguard all the belongs in the house from dampness.
  5. Again crawl space dehumidifiers also makes it easy to manage humidity indoors and put it to the right and a recommendable level.

Factors to Consider When Buying the Best Crawl Space Dehumidifier

There are many crucial factors to consider when buying the best crawl space dehumidifier:

1. Size and Capacity

Humidifier size usually means the size or dimensions of the humidifier to be installed which must fit into the crawl space. Also, the indicated capacity in the function of the dehumidifier means the number of pints that can be extracted per day.

In this respect, the size of the crawl space needs to be considered within a dehumidifier in order to adequately handle its moisture removal to inhibit mold. Making a wrong decision with regard to the size and capacity of the dehumidifier will lead to the wrong capacity of the equipment to dehumidify the targeted area.

2. Energy Efficiency

Since the dehumidifier will be used frequently as required to maintain proper humidity in homes it is important to compromise on the efficiency of the device to save on costs of running the dehumidifier. Low power dehumidifiers use less electricity hence are cheaper and produce less effect on the environment.

In this case, it is recommended to get crawl space models that have Energy Star label and this is due to the fact that it is proof that the product meets the efficiency standards duly set by the US Environmental Protection Agency.

3. Durability and Construction

Since the unit will be installed in an area that is exposed to moisture and which may corrode some material, it necessary to select a dehumidifier that is sturdy, constructed from strong materials and which can endure harsh conditions. Stainless steel or a coated aluminum is ideal with casing and internal components of a crawl space dehumidifier for they do not rust and have the strength required.

Further, those models of dehumidifiers with durable internal features notably the compressor and fans will serve the intended purpose for a longer duration before calling for servicing. The quality of the construction of the crawl space dehumidifier consists of choice will also warrant that the unit can run for a long time while in the right capacity decreasing humidity effectively.

4. Drainage Options

The two main types of drainage options are Gravity drainage System and Pump drainage System. Gravity drainage is done by joining the dehumidifier to a drain pipe or sump pump through which water is directed out of the dehumidifier and away from the crawl space. However, pump drainage involves its own built-in pump which can pump water from the dehumidifier to another location.

Despite, both of them can solve the problem of water evacuation from the unit, it is better to use a pump drainage, if there is no drain or sump pump in the crawl space. Also, check whether the drainage option befits the model of the dehumidifier so as to prevent any leakage or so on.

5. Humidity Control Settings

The ability to adjust humidity levels is important when regulating moisture and while there are different types of dehumidifiers, they may come with varying levels of control. Some units contain the usual ON/OFF button while others contain more sophisticated settings whereby users can set a desired humidity level and set speed control to suit their needs. 

Those equipped with humidity sensors will be able to turn on the appliances responsible to control the level of moisture in the air. This means that there needs to be a selection of the required humidity control settings of the dehumidifier depending of crawl space requirements such as the current level of moisture and size of the crawl space. Adjustable variable humidistat suited will ensure that the right humidity levels are created to avoid mold formation and other related moisture festering complications.

6. Noise Level

Noise level is an important consideration when choosing a crawl space dehumidifier, especially when the dehumidifier will be placed in a livable space, or workspace. It should be noted that some of the dehumidifiers may make certain sounds when functioning essentially noise that can be irritating. Those devices which have features such as a kind of insulation and vibration isolation system fitted will help to lower noise levels making such models suitable for use in the crawl space near habitable or working environments.

It is also necessary to look at the decibel level for a specific dehumidifier which means that a low number of decibels is good because the dehumidifier will be quieter. Selecting a quieter appliance will make it possible to get a suitable environment inside the dwelling or working place in addition to the proper air humidity level in the crawl space.

7. Price

The cost of dehumidifiers varies depending on factors such as the features available, the size plus the manufacturing company. Of course, you would prefer to opt for the lowest price but instead of opting for such devices, it is advisable to go for better quality dehumidifiers that would guarantee you efficiency and durability in the long run cutting down costs in the long run.

So when outlining the price list you need to have into consideration the price offered by various companies with relation to the features, capacity, size and the energy efficiency of the dehumidifiers. Furthermore, the cost of installation, maintenance as well as possible repairs should form part of the cost when planning to install a crawl space dehumidifier.

8. Brand Reputation

Buying a reputable brand with a proven track record of producing high-quality dehumidifiers can go along way to guarantee that the unit is durable and efficient in its operations. The branded product are those that come with warranties and after sales service to ensure customer satisfaction in case of defects.

When purchasing products from this brand, it is recommended to read customers’ testimonials in order to get an idea about their products and services quality. Selecting a good and reputable brand dehumidifier can do a lot in ensuring that the investment give the best result of controlling the moisture of the crawl space.

Frequently Asked Question On The Best Crawl Space Dehumidifier

1. Is it worth putting a dehumidifier in a crawl space?

Yes, it can be worth putting a dehumidifier in a crawl space. Thus crawl spaces can be somewhat poorly ventilated, handily providing a near perfect environment for mold growth, wood rot and a distinguishing musky smell. If the humidity level in the crawl space is high, you may develop these problems and the quality of air you breathe will also be affected; all these can be prevented with the help of a dehumidifier. If you want you can go out in the market and purchase the best air purifier and dehumidifier combination.

Nevertheless, one should eliminate any case of moisture conditions such as leaks or standing water in the crawl space before installing dehumidifier. These problems must be addressed prior to operating the dehumidifier because the dehumidifier has to work extra hard and may even conk out.

Selecting the minimum size and type of dehumidifier for a crawl space is also relevant. If the unit is too small it cannot adequately heat or cool the space, if it is too large it will dry out the area and cause damage to your homes framing. Also, it is advisable to get the dehumidifier with some additional options like an auto shut off and a control Humidistat to ensure you don’t have to struggle with operating it all the times.

2. What size dehumidifier do I need for my crawl space?

The size of the dehumidifier for your crawl space depends with the size of the crawl and the level of humidity that you want to maintain. For the best result, set out for dehumidifier that can effectively eliminate 10-12 pints moisture each day for every 500 square of crawl space you have.

If you want to know its size just measure the area and multiply the two dimensions acquired. For instance, if your crawl space has proportions 20 ft long and 10 ft wide, the size would be 200 sq ft. The second consideration which you should take after you must have defined the size of the crawl space you want is the humidity level. Relative humidity mostly preferred in the house or a healthy living environment consists of 30% and 50% respectively. If the humidity level is continually over 50%, it is recommended that a larger dehumidifier is used.

But you should also know that different dehumidifiers vary in ability to perform the said task. A dehumidifier with a humidistat will shut off the dehumidifier automatically when the target humidity level is reached and switch the dehumidifier back on when the set humidity level is exceeded thus saving more energy and putting less strain on the dehumidifier. In general, this should be left to the discretion of a professional to decide just how large of a dehumidifier will work best in your crawl space situation.

3. What is the best dehumidifier for under house?

The best dehumidifier for under a house depends with other factors like the sizes of the rooms, the extent of dampness and the humidity level prevalent in the locations. By this comprehensive review, MIDEA Dehumidifier occupies the place since it is most suitable for the under house as it covers the broadest area, has the biggest capacity, a proper drainage system, high energy efficiency, and reliable durability elements.

Ian Mutuli

About the author

Ian Mutuli

Founder and Managing Editor of Archute. He is also a graduate architect from The University of Nairobi, Kenya.
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