If you live in a warm climate, chances are high that your crawl space may get humid all the time due to the cooling down of hot air which turns into moisture. More so, lack of proper ventilation also results in high humidity levels in the crawl section of the house. There is no need to overemphasizing that dampness in crawl space could turn the ground space of your house into an unhealthy entity. Notwithstanding, excessive moisture can damage your building structure and also make air unsuitable for breathing. Your crawl will be full of germs, allergens and dust mites. Also, mold and mildew develop faster in high humidity environments including some species of rodents, as such your crawl space is a practical place to discover this menace. To avoid all of these problems underneath the space below your house, this will require you installing the best dehumidifier for crawl space. However, we dedicated this post to the best crawl space dehumidifier reviews and guideline will help you find the best crawl space dehumidifying machine.
| Coverage | ||
|---|---|---|
 Check Price | 1,300 sq. feet. | Review |
 Check Price | 2,200 sq. feet. | Review |
 Check Price | 2,600 sq. feet. | Review |
 Check Price | 2,500 sq. feet. | Review |
 Check Price | 2,200 sq. feet. | Review |
 Check Price | 3,000 sq. feet. | Review |
 Check Price | 3,400 sq. feet. | Review |
Table of Contents
The CrawlSpace and Humidity Vs. Dehumidifier?
High humidity in crawl area can affect the whole health of your house. The dark conditions in these places along with laden moisture can cause severe wreckage. This place thus become a breeding ground for termites, insects and germs of all kinds. However, installing a dehumidifier in this area can solve all these faster.
Nevertheless, if you do not want your property to be damage by moisture, then setting up a dehumidifier in your crawl space is a very good idea. It will protect your house foundation, keeps you healthy with a breathable fresh air. Should in case, you want to purchase a unit but not sure of what makes up a good dehumidifier for crawl space, here are a few important things that may help:
- Space – This is the first thing to note. Unless you know how much of space that needs to be dehumidify, you might not get an efficient unit that can power the suppose space. What you need to do, is to calculate the cubic feet of your crawl space by multiplying length, breadth and height.
- Level of humidity – Use a hygrometer to do the needful and then decide on the model you may need to invest in. Find out if the level is moderate (3 air changes per hour), wet (5 air changes per hour), very damp (4 air changes per hour) or is extremely wet (6 air changes per hour).
- Unit – Make sure that the unit is CFM rated and is energy efficient. This will make it easy for you to manage monthly bills and keep your house safe both at the same time.
- Price – Another that plays a major role while buying anything for that matter is its price. You must have a budget and it must be a practical one. Just stick to it come what may. Do not overspend in something that you may not be comfortable with.
Best Crawl Space Dehumidifier Reviews
As promised, here are 7 of the best crawl space dehumidifiers with reviews. It is very important to know, if there is no ventilation in your crawl, simply means moisture that find itself inside can’t evaporates. So it is very needful to dehumidify your crawl space to prevents the problems of high moisture. With units below you can achieve this desire with peace of mind. Find yourself the best quality one from the list.
1. AlorAir Basement / Crawlspace Dehumidifiers
This crawl space dehumidifier is designed for crawling areas up to 1,300 square feet and has the capacity of extracting 55 pints per day. This device can work in low temperature as low as 36 degree Fahrenheit, thanks to the hot gas defrosting functionality which protects it from extreme temperature. This also features internal corrosion protection technology that reduces rusting and Freon leakages which most crawl space dehumidifiers’ lacks.
In addition, the energy star qualify unit consumes less energy therefore you can dehumidify for hours while paying less on electricity bills. With this machine there is no need for you to empty water manually because it has no tank storage, collected condensation drain out via a continuous drain hose. This also allow you to adjust the level of moisture you want to withdraw from your space in order to maintain a balance of humidity level in your craw section. It comes with a filter for odor reduction and optimal moisture removal. There is also automatic shut off and automatic humidity control. The package include a remote system for easy operating of your machine. Unfortunately, this lacks pump system and also a bit expensive but work efficiently protecting your environment.
2. Aprilaire 1830 Pint Whole Home Dehumidifier
The next dehumidifier in this review list is from the Aprilaire brand, a leading company based in the USA. In their year of existence they’re renowned for quality and durable cooling and heating home appliances manufacturing. This hand work from them is a well-crafted and efficient humidity minimizing device and this perform maximally in 2,200 square feet coverage.
The 70 pint capacity is higher than the Alorair 55 pint as such if you need more power, Apprilaire 1830 is worth the consideration. This features an aluminum corrosion free coils that prevents it from water damages. It has no messy water tray to empty, moisture is runs out constantly via the drain option. This uses a filter that require annual cleaning or replacement and top of the notch, back up with 5 year aftermarket warranty.
3. AlorAir Basement/Crawl Space Dehumidifier 198 PPD
We are so much concerned in helping you remove mugginess and smelling odors caused by high humidity from your crwalspace and that’s why we’ve also included this AlorAir Basement/Crawl Space Dehumidifiers 198 PPD for your consideration. Many crawlspace dehumidifiers of its kinds are very expensive but this Alorair unit is reasonably priced and equipped with crawl space humidity removing friendly features.
AloeAir is not only design for your crawling areas, but also efficient for garages, basement and any other large sections where humidity seems to be causing you problem. It comes with high humidity reduction power, extracting of up to 90 pints in 24 hours and can work efficiently in 2,600 square feet area.
You don’t need any other unit if you want to dehumidify for hours while spending less on energy bill because AlorAir Crawl Space dehumidifier is an energy friendly device. The unit can also work in low temperature as low as 36 degree F, thanks to the hot gas defrosting system inputted into AlorAir that protects it from high humidity levels.
Many crawl space dehumidifiers are easily affected by water due to excessive humidity building up in them but the good news, AlorAir 198 PPD comes installed with internal corrosion protection that minimizes rusty and leakages that usually affects most dehumidifier’s coils. Wonderful enough, you’ll get a whopping 5 years of warranty on when you purchase this machine and also a remote system to control the unit.
4. Dri-Eaz PHD 200 Commercial Crawl Space and Basement Dehumidifier with Pump
Dr- Eaz is a compact size dehumidifier with high humidity reduction capacity and performs its duty best in enclosed environment such as in the crawl space. The commercial standard unit is not as expensive compare to that of AlorAir 1988 PPD but doesn’t mean it’s powerless. It feature up 70pts per day and covers up to 15, 000 cubic feet spaces sucking out moisture that adversely affects home crawl area. The value and functionality of this Dri – Eaz crawl space device is rare to find in competitive models. For instance, this unit has auto pumping machine that enable it to run continuously. And also offers 4 languages digital touch control panels to meet different user’s needs.
It also displays the real time relative humidity of your crawl space to know if there is improvement or not, which is one feature to look for when restoring humidity damaged crawler’s area of a home. You will not only get the value for your money on purchasing Dri-Eaz PHD 200 but also enjoy an everlasting limited warranty on the unit polyethylene housing body. It did not end there, you’ll also get an additional 6 years coverage on unit compressors and coils. To make it a complete peace of mind, for a whole period of one year, you will get free services on parts and labor. With all of the features associated with this 16 gallon water removal machine, I believe it’s worth the chase.
5. Aprilaire 1820 Crawl Space Pro Dehumidifier 70 Pint
Dwelling too long on which crawl space dehumidifier you think is best for you will give rise to building up of more moisture. Sure you know high humidity would eventually cause your house to develop mold, mildew and off course smelling odors. However, introducing you to Aprilaire 1820 crawl today will take off your long waiting decision. No doubt, Aprilaire brand is a mark of quality and satisfaction to customers who had used their products before. However, this crawl-space dehumidifying machine carries the mark of their innovation with the ability to extracts 70 pints from crawl spaces sizing up to 2200 square feet.
During operation, Aprilaire 1820 can gather up to 9 gallons of condensation from underneath your house. Progressively, you can keep odors, molds, structural wood rot and termites under check. After installation, just leave and forget it. No water tray to empty, continuous drains does that for you. Most relevantly, Aprilaire is design to last. Water can’t damage it because the coils are resistant water. Compare to the rest of the units reviewed, Aprilaire 1820 dehumidifier is cheap and affordable.
6. Aprilaire 1850 Whole Home Pro 95 Pint Dehumidifier
This is another unit from the same brand that design the previous Aprilaire 1820. Although, both units are optimized for crawl areas but yet have different features. For instance, Aprilaire 1850 is a higher version of the previous Aprilaire 1820 model and equipped with advanced features and also pricier. Nevertheless, you can trust Aprilaire 1850 dehumidifying machine if you’re looking for device that can remove up to 95pints daily. Also, if your crawl is as big as 3000 square feet then Aprilaire 1850 is something to depend on.
This is built in USA, resistant to corrosion and water leaks which account for its long lasting life span. This unit is not an everyday dehumidifier that requires emptying of bucket, after mounting and installing it, set the unit to start work and go about your business. Nevertheless, collected condensation runs directly into your drain with the help of a garden hose. So, purchasing and operating this Aprilaire is trouble free, time saving and cost effective. Purchasing the 12 gallon capacity per day unit with other reputable features won’t be too much for a price of $1000 plus compared to the damages high humidity can cause you.
7. Santa Fe” Advance 2 Dehumidifier For Large Areas
This Santa Fe unit is a dedicated and result orientated dehumidifier and I personally recommend it as my best pick in this crawl space dehumidifier review list. Santa Fe is not just a brand but back to back end company with reputation in what they manufactured. If you happened to use some of their heating and air quality products, you’ll agree with me. So coming this far in this review, Santa Fe win the race for me, although more pricey but value is cherished.
The advance 2 dehumidifier is a home base made unit (Manufactured in American). Equipped with a good level of pint withdrawing capacity and coverage space but portable in size. Highly notable, low cost of maintenance, only a professional connection required and your unit is ready to restore damaged crawl surrounding of up to 3,400 sq. feet taking out 90pints daily. It can also work perfectly in large basements where high moisture has been singing praises.
What is the Ideal Humidity Level for a Crawl Space
Close checking on your crawl space is one of the way to know if moisture level is high or not. The colder it is in there or when you start noticing molds and mildew growth, dark saturated spot on the walls, that’s a sign that your space humidity level is high. Rodents that feed on rotten wood cellulose activities and odor also indicates a high amount of it.
To remove guess work, it is ideal to do a humidity check with an instrument called hygrometer. This device is design to measure amount of water vapor in the air of a particular area where it is installed.
What Should Be the Acceptable Moisture Levels in Crawl Space?
After conducting the humidity level test, you will arrive at a reading on the device. Whatever result it reads out need to be compare with the general acceptable range worldwide which is from 45 to 50 % relative humidity. If you discover it is on the high side then the excessive portion needs to be removed and this will require you installing a crawl space dehumidifier to suck out the moisture.
Nevertheless encapsulation is a permanent and best method to stop humidity from building up in the crawl space. This process involves sealing of vents to prevent incoming vapors from outside to store as humidity.
To carry out encapsulation the following materials such as 20mil vapor barricade system, a sump pump, sealing crawl space openings and doors alongside installing a dehumidifier system.
List of Best Crawl Space Dehumidifiers
- Dri-Eaz PHD 200 with Pump
- Dri-Eaz Revolution LGR 7,000 sq. ft.
- AlorAir Basement/Crawl space 55 pints
- AlorAir Crawl Space Dehumidifier 90 PPD
The above appliances are some of the top rated units we picked from the 20 items analyzed. Each come with respective amount of pint they can take daily and also sized of space for use. Many other features also distinguishes them – you can refer to the reviews for clarification.
Remember molds and mildew require about 70% moisture level to survive. This can only be controlled when crawl space humidity is under check.
| Coverage | ||
|---|---|---|
| Check Price | 1,300 sq. feet. | Review |
| Check Price | 2,200 sq. feet. | Review |
| Check Price | 2,600 sq. feet. | Review |
| Check Price | 2,500 sq. feet. | Review |
| Check Price | 2,200 sq. feet. | Review |
| Check Price | 3,000 sq. feet. | Review |
| Check Price | 3,400 sq. feet. | Review |
In Conclusion:
This review has looked at some best crawl space dehumidifier and relevant details to knowing which is the best product. Remember high humidity in crawl space has side effect on your building and the health of your household. This you need to avoid while leveraging on the right crawl space dehumidifier which we have outline here.
Take a glance on the need of a bathroom dehumidifier today as preventing mold, allergens and other agents that rely on high moisture to survive is possible through the guide.