A crawl space is a 1 to 3 feet high, enclosed, narrow area between the ground and the first floor of a house. Because of its confined surroundings, the air inside has often been poorly ventilated. Moisture, mold spores, as well as other pollutants like microbes, can easily accumulate and grow that can pose a serious health risk. Too much moisture can also affect the integrity of a structure if not addressed properly. Fortunately, a crawl space dehumidifier can effectively fix these issues.
Crawl space dehumidifiers are efficient enough to eliminate moisture and dampness for a better home environment. Built to be placed or installed in a crawl space area, this specific type of dehumidifier can also boost your home's atmosphere and enhance the health of your crawl space.
That being said, we analyzed and highlighted the best crawl space humidifiers commonly available on the market with the help of experts and professionals. With them, you can effectively address crawl space moisture issues and provide a healthier environment for your family by using the best crawl space dehumidifier.
So here are the top-notch brands and models which incorporate quality performance with a variety of aspects. Also, to know further about their fantastic deals and offers on Amazon, just press the buttons below!
1. Aprilaire 1850Z (1850 Pro) Dehumidifier
27.5 x 12.5 x 14.5 inches
5200 square feet
This Aprilaire 1850Z (1850 Pro) Dehumidifier is perfect for dehumidifying your entire home and can remove up to 12 gallons (95 pints) of water a day. We put it to the test in a 600-square-foot house constructed over a streambed, where water often rises from the crawl space floor. When we first turned on the dehumidifier, it gave us an RH level of 96% in the crawl space. We set the unit to 40 % and it went from 96% to 76%in just 2 hours! It dropped to 34% after a few days and has remained constant. Moreover, it can be rigged to your HVAC system for your accessibility, and the control panel can be placed on the top or front of the device for convenient access from either spot. There are no dirty trays to empty, and filter cleaning or repair is only done once every year. That said, we highly recommend this Aprilaire 1850Z (1850 Pro) Dehumidifier as you’ll get is a stunning unit that won’t fail you in any season! A true gift for you!
2. MIDEA MAD50C1ZWS Dehumidifier
15.94" x 11.54" x 24.29 inches
4500 square feet
Midea is the world's biggest air conditioning manufacturer, and this MAD50C1ZWS Dehumidifier is yet another excellent product. It provides a variable fan speed to maximize its performance. Its continuous comfort mode retains at 45% to 55% humidity threshold. In our series of tests, this dehumidifier is indeed incredible because at 60% humidity set on "comfort" mode, 1.6 gallons of water were extracted within only 12 hours! Additionally, this dehumidifier combines innovative features like automatic restart in the case of power failure, automatic shut-off when the internal bucket is loaded, auto defrost to avoid internal damage, and an auto-cleaning filter notification.
3. AlorAir Sentinel HDi90 Crawl Space Dehumidifier
24.8 x 13.78 x 15.75 inches
2600 square feet
This AlorAir Sentinel HDi90 Crawl Space Dehumidifier is ideal for extremely humid crawl spaces. It will eliminate up to 90 pints of water a day, keeping your crawl space dry as well as mold-free. Just a few days after we installed the unit, the humidity level reduced from 80% to 35%. The moisture content of the wood has also decreased from 17% to 18% down to 11% to 12%. The pump is working well after we ran the drain hose on approximately 10 inches with a 4-inch vertical climb. This unit is something we would recommend to everyone who has moisture concerns in their crawl space. Moreover, it boasts amazing features such as a built-in pump, secured coils, and a defrost mechanism. With Sentinel HDi90, we assure you that you’ll get a straightforward solution for your crawl space moisture problems!
4. AlorAir Sentinel HD55 Crawl Space Dehumidifier
1300 square feet
This AlorAir Sentinel HD55 Crawl Space Dehumidifier is highly recommended for small crawl space areas. It's easy to fit into tight spaces because of its compact shape and scale. It can remove up to 55 pints of water a day and cover up to 1300 square feet area. This unit has a few brilliant features like automatic shut-off when you achieve your desired moisture levels. During our testing, it runs consistently with six-point hysteresis when set at 48% humidity level in 1400 square feet crawl space, switching on at 51% and turning off at 45%. Moreover, the remote control, which can be bought separately can be placed about four meters from the unit and can also offer a longer and more powerful operating cycle than inbuilt humidistat. Furthermore, at 3 feet, we measured 65-decibel units of sound made up of rushing air. The compressor can be heard but at a far less irritating volume.
5. Hysure Portable Mini Dehumidifier
11.26 x 6.38 x 5.28 inches
215.28 square feet
With its small size but huge features, the Hysure Portable Mini Dehumidifier provides you with a good standard of crawls space experience. It is made with Peltier technology, which is whisper quiet and doesn't need a compressor or heavy machinery. At 30°C and RH 80% relative humidity, it effectively and hygienically removes excess moisture. This small dehumidifier works well in a crawl space measuring 6 feet by 13 feet. The tank fills up for around 2 to 3 days in the specified area, but it is simple to drain and maintain because the power light switches from Green to Yellow when it is time to drain it. It's also remarkably quiet, comparable to that of a computer fan. This mini dehumidifier is designed with high ABS material and has a sound level of fewer than 33 decibels, so it won't interfere with your daily work or sleep, giving you a relaxed and quiet environment.
Best Crawl Space Dehumidifiers - Buyer's Guide
Since there isn't much room in a crawl space, putting something down there could be challenging. When it comes to having a big or tiny crawl space dehumidifier, size may be a major problem to solve. Although you must always choose a unit with the appropriate capacity for your home and its moisture issue, you must also consider the system's overall dimensions. Remember to calculate the crawl space of your home before deciding on a model to ensure a good match.
Another critical factor to consider is the coverage area. Some crawl space dehumidifiers can handle areas larger than 1000 square feet. That being said, it's worth noting that the units that serve wider areas have a larger design. Check the needs and size of the crawl space and also how humid it is when selecting a unit. Units with greater coverage will consume more energy, so consider the requirements carefully.
It's not always necessary to hire a technician to install a dehumidifier in your crawls space. In certain instances, the device's configuration determines how it is installed. Several units may be hung, whereas others are built to fit perfectly into a side table or corners or integrate with your HVAC system. In certain instances, you can need to modify a portion of your crawl space to make room for the device.
Dehumidifiers are usually classified according to the amount of moisture (pints of water) they can eliminate every day or per 24-hour period. This can range in scale from either a small 0 pint to a significant 90 pints and beyond. Additionally, during the winter months, the crawl space can become quite pretty cold. This could be harmful to the dehumidifier's coils, so a defrost mechanism is necessary.
Although a dehumidifier is not a complex machine to operate, some may be simpler to use than others. The control panel, which may include a digital panel or absolutely basic controls, is one of the most important considerations. In any case, a good control panel would make things a lot simpler in a dark room crawl space. Moreover, having a remote control intended for your crawl space dehumidifier will also come in very handy.
Best Crawl Space Dehumidifiers - FAQs
No, it is not recommended to use a regular dehumidifier because crawl space has its own classification when it comes to dehumidifiers.
If you want to keep your home dry and prevent mold growth, you'll need to choose a unit with the right capacity. Here's a fast guide to determining what size dehumidifier you'll need:
12 pints for 500 square feet
17 pints for 1,000 square feet
22 pints for 1,500 square feet
27 pints for 2,000 square feet
When humidity levels rise above 60%, mold begins to develop in the crawl room. As a result, you can maintain the humidity level in your crawl space below 60%. For the average, set your dehumidifier at about 50%.
It can be placed anywhere where the discharge airflow is not obstructed. Remember that hanging the dehumidifier will cause noise to the area above, so you should place it on concrete blocks.