Is the humidity in crawl space under your house causing you trouble?
Maybe you should think about investing in an under house dehumidifier!
Here you can read about dehumidifiers for crawl space under the house. I will give you the information on the 5 best dehumidifiers for crawl space under the house so you can choose the best one for your needs.
What You Need To Know About Under House Dehumidifiers?
What Are Dehumidifiers?
Dehumidifiers are appliances that absorb excess moisture in the space. By doing so, it prevents mold, bacteria, and other harmful particles to build up in your home. It is common that humidity builds up in the crawl space under the house so it is useful to get an under house dehumidifier.
Main Types Of Dehumidifiers
There are many types of dehumidifiers on the market, depending on the use. The two main types would definitely be condensation and desiccant dehumidifiers. Desiccant dehumidifiers have an absorption substance that collects the moisture while the condensation dehumidifiers work by cooling the air and collecting the excess water. Most of the under house dehumidifiers belong to this type.
What To Look For In Your Crawl Space Dehumidifier?
When you look for a dehumidifier for under your house make sure you buy a dehumidifier appropriate for the size and humidity of your crawl space. It is important that you buy a dehumidifier that is designed for crawl spaces because they are made to operate even in low temperatures.
Where To Buy An Under House Dehumidifier
Dehumidifiers for crawl space under the house can be bought in specialized stores or by online services like Amazon where you can often find a special discount or included free shipping. Prices vary depending on the dehumidifier characteristics and range from $200 to $1500.
Best 5 Dehumidifiers For Crawl Space Under The House
Best Under House Dehumidifier With Pump
BaseAire AirWerx90X Crawl Space Dehumidifier with Pump
Practical And Compact Design
This dehumidifier with its dimension of 30 x 24 x 22 is small enough for tight spaces, which crawl spaces usually are. The 2 rigid handles on the top make the positioning of the dehumidifier safe and easy.
Made To Last
BaseAir dehumidifier is made to last inside and out. Dent-resistant sheet metal housing protects the interior of the dehumidifier from external damages which can be caused by impact. On the other hand, stainless coils on the inside ensure long use without the need to repair or replace them.
Easy Set Up And Use
This under house dehumidifier is really easy to set up. All you need to do is plug it in, turn it on, and choose the desired settings that are between 30%-90% humidity and 33.8°-104°F. The option to automatically turn on and off based on the set humidity levels is useful for people who tend to forget to turn their appliances on and of.
You Can Drain It Anywhere
This dehumidifier comes with a built-in condensate pump with a 20’ lifting distance. It makes the entire drainage process much easier. The best part about it is the fact that the drainage hose is included in the price.
Additional Option: Remote Control
This dehumidifier is ideal for under the house because it has a function of remote controlling so you do not need to go to the crawl space to turn it on or change the settings. Unfortunately, the remote controller is not included in the package and must be bought separately.
Specifications:
- built-in pump
- turn on and off automatically
- removal of 90 pints of water a day
- optional remote control
Best Commercial Dehumidifier For Crawl Space Under House
MOUNTO Commercial Roto-Mold Crawl Space Dehumidifier
Practical Design For Commercial And Home Use
Two handles on the top of the dehumidifier make the positioning quite easy. It comes 25 ft long power cord and drainage hose which can be secured to the sides of the device with integrated cord holders when not in use.
Small But Powerful
If you believe that larger devices are more powerful, this dehumidifier will be a pleasant surprise. It can dehumidify areas as large as 7,000 square feet. Categorized as small, light Xactimate “Large” dehumidifier it can remove more water than units 2-3 times its size. The combination of power and size makes it ideal for tight spaces. That does not only apply to crawl spaces but to bathrooms, kitchens, and hallways which makes it user friendly.
Monitor The Data in Real-Time
The control panel located on the front top of the device is not there just so you can turn the dehumidifier on and off. It shows the inlet and outlet temperature, relative humidity of the air, and grain depression in real-time, too.
Pull up to 125 Pints of Water Per Day
This commercial-grade dehumidifier pulls out 80 pints of water by AHAM conditions which are 80°F and 60% humidity. In more humid areas its performance is even more impressive: at 90°F and 90% humidity it pulls out 125 pints of water per day.
Stack Them Up When In Transport
This dehumidifier comes with a secure stacking option. It is possible to stack up to 3 dehumidifiers one on top of the other. This feature is quite useful when you need the dehumidifiers in another location. You can stack them up in your hand truck and move them in a single trip.
Specifications:
- dehumidifies up to 7,000 sq ft
- removes 80 PPD at 80°F/60%
- real-time data monitoring
- stackable for easy transport
Best Energy-Efficient Dehumidifier For Under Your House
AlorAir Sentinel HD55 Crawl Space Dehumidifier
Continuous Operation Even In Low Temperatures
The hot gas valve defrosting system enables this dehumidifier to continuously work because it does not need to stop to defrost. This way of operation makes your dehumidifier last longer and it saves up a considerable amount of energy. The unit can function in the temperature range from 33.8 to 104°F and humidity levels from 35 to 95%.
Minimized Corrosion And Freon Leakage
The greatest problems of most dehumidifiers are coil corrosion and freon leakage due to use in corrosive environments. These problems are efficiently solved by the innovative epoxy coating of the coils. This feature maintains the coil’s heat transferability and extends the life of the coils.
Tankless With Gravitational Drainage
With this dehumidifier, there is no need for hourly emptying of the tank because there isn’t one. The water drains automatically trough the drainage hose using the force of the gravity. The necessary drainage hose of 6.5 ft is included in the package.
Easily Removable And Washable Filter
This unit comes with an easily removable G3 filer which helps to eliminate odors from the space. The filter can be cleaned by vacuuming or washing with just warm water which keeps the dehumidifier in top performance without the need to buy replacement filters.
Optional Remote Control And Focused Dehumidification
The AlorAir dehumidifier is designed with the function of remote monitoring which is really useful for crawl space dehumidification. It also has the function of focused dehumidification with the use of an outlet duct. But the downside is that you need to buy both the remote controller and outlet duct separately.
Specifications:
- hot gas defrosting system
- for spaces up to 1,300 sq ft
- 55 pint per day at 80°F/60%
- corrosion and freon leakage protection
- optional remote control and focused dehumidification
Best 70 Pint Under House Dehumidifier
Aprilaire 1820 Pro Crawl Space Dehumidifier
Made in The USA
As the leader in indoor air quality solutions, Aprilaire takes pride in the fact that its dehumidifiers are all designed and manufactured inside the borders of the USA. That is great news for you because it means less shipping time and less chance of it being damaged in transport even with its robust packaging.
Corrosion-Resistant Aluminum Coils
Aprilaire dehumidifiers are made to last. This crawl space dehumidifier comes with aluminum coils that are resistant to corrosion. That means the unit can run 24/7 without stopping for a very long time. All you need to do is change the filter once a year.
Keeps Your House Dry And Robust
This device reduces the humidity in the sealed crawl space under the house. By doing this it effectively protects your house from growing mold, an infestation of termites, or structural wood rot. You can be sure your house is structurally safe and sound.
Designed Specifically For The Crawl Space
With the automatic operation option it is perfect for sealed crawl spaces. The dehumidifier monitors the humidity in the space and turns it automatically on if the humidity is higher then the set value. It also shuts down when the humidity is below the desired value.
No Messy Water Tray
There is no need for frequent emptying of the water because the dehumidifier comes with an automatic draining option. Just place the draining hose in the nearest drain hole or sink, secure it and let it do its job.
Specifications:
- elimination of 70 pints of water per day
- for spaces up to 2,800 sq ft
- corrosion-resistant aluminum coils
- made in the USA
Best Cheap Dehumidifier For Crawl Space
Honeywell TP30WKN Energy Star Dehumidifier
Ideal For Small Crawl Spaces And Rooms
If you are on a budget and need a dehumidifier for both your living space and your under-house space this is a great option for you. It can dehumidify spaces up to 1,000 square feet, just make sure you place it somewhere with the temperature within the operating range of 41-89 °F.
Choose Between Tank And Continuous Draining
This device comes with dual drainage options. Integrated 7-pint tank with a patent-pending anti-spill feature is convenient for smaller dehumidification jobs. If you need full use of its 30 pints a day capacity, then you may opt for continuous draining in a nearby drain with the hose provided in the package.
Smart And User-Friendly Interface
A smart digital control panel on the top makes this dehumidifier extremely user friendly. It comes with a full tank and filter alert indicator, 24-hour energy-saving timer, sleep mode, auto-restart after a power outage. Set your optimal relative humidity from 30 to 90%. Mirage front housing display lets you monitor the RH from afar.
Affordable And Versatile
Honeywell dehumidifier is the cheapest one on this list by far. And the best part is that you do not need to use it only in your crawl space. Its contemporary and practical design makes it great for any room. Its sturdy handle, smooth-gliding wheels, and rear-mounted cord winder are great for easy transport from room to room.
Specifications:
- eliminates up to 30 pints per day
- for spaces up to 1000 sq ft
- tank and continuous draining option
- modern and smart design
- handle and wheels for easy transport
Conclusion: And The Best Under House Dehumidifiers Are…
If you ask me, the two best crawl space dehumidifiers are AlorAir Sentinel HD55 Crawl Space Dehumidifier and Honeywell TP30WKN Energy Star Dehumidifier. The AlorAir is a better option if you need a heavy-duty dehumidifier for under your house because of its greater operating capacity and the ability to continuously work in lower temperatures. The Honeywell is better if you have a smaller space and a tighter budget.
If you are not sure if this is the dehumidifier for your needs, you should read my post about dehumidifiers. If you would like to know more about cheap dehumidifiers, you should look at my review of the best cheap dehumidifiers. If you are more interested in 70-pint dehumidifiers, check out my best 70-pint dehumidifier review.