A crawl space usually plays a crucial role in maintaining the structural integrity of your home. Excess moisture in crawl spaces can lead to hazardous problems, from Mold growth to structural damage. The crawl space dehumidifiers work by dehumidifying these spaces. Let’s explore some of the best-selling options available on marketplaces, but before all, let’s figure out what a crawl space dehumidifier means.
What is a Crawl Space Dehumidifier?
Crawl space dehumidifiers regulate the moisture levels in the crawl spaces of homes or buildings.
What is a Crawl Space?
A crawl space is a confined, mostly unoccupied area beneath any building. It provides access to the plumbing, electrical, and HVAC systems. These spaces have high humidity levels due to their proximity to the ground, leading to various problems, including mold growth, wood rot, and structural damage.
How does a Crawl Space Dehumidifier work?
Crawl space dehumidifiers draw in moist air from the crawl space, then pass it over a refrigerated coil to condense the moisture and expel the drier air back into the space. This process reduces the humidity levels and creates a more dry area, thus discouraging mold growth and protecting the structural integrity of the building.
Choosing the right crawl space dehumidifier is not an easy job. It involves considering many important factors, such as the size of the crawl space, the local climate, and the desired level of humidity control. An important factor is selecting a dehumidifier with a capacity and coverage area suitable for the specific crawl space dimensions.
Investing in a best crawl space dehumidifier is a real bargain. It can be a proactive measure to prevent costly damage and maintain a healthy indoor environment in your home or building.
Types of Crawl Space Dehumidifiers
Crawl space dehumidifiers come in various types, each designed to meet specific needs and conditions in crawl spaces. Here are the primary types of crawl space dehumidifiers:
1. Portable Crawl Space Dehumidifiers
o These are standalone units that can be moved around as needed.
o Suitable for smaller crawl spaces or occasional use.
o Generally, they have lower capacity and are more affordable.
2. Built-In or Whole-Home Crawl Space Dehumidifiers
o These are installed as a permanent solution. These dehumidifiers are connected to the HVAC system.
o It is ideal for larger crawl spaces or those looking to dehumidify the entire home.
o They often have higher capacity and efficiency.
3. Compact Crawl Space Dehumidifiers
o Compact Crawl Space Dehumidifiers are designed for such tight spaces; these dehumidifiers are smaller and more compact.
o They are suitable for crawl spaces with limited headroom or access.
4. Commercial Crawl Space Dehumidifiers
o These are heavy-duty units designed for commercial and industrial applications.
o Commercial types can handle larger crawl spaces or demand moisture control requirements.
5. Desiccant Crawl Space Dehumidifiers
o Such types use a desiccant material (typically silica gel) to absorb moisture from the air.
o They are more effective in low-temperature environments, making them suitable for colder climates.
6. Condensate Pump Crawl Space Dehumidifiers
o They are equipped with built-in condensate pumps to remove collected water efficiently.
o Useful for crawl spaces where drainage options are limited.
7. Energy-Efficient Crawl Space Dehumidifiers
o They are designed with energy-saving features, such as variable-speed fans and auto-defrost functions.
o It is ideal for minimizing energy consumption while maintaining moisture control.
8. Smart Crawl Space Dehumidifiers
o These units can be controlled remotely through smartphone apps or integrated into smart home systems.
o They offer convenient monitoring and control options.
Hybrid Crawl Space Dehumidifiers
o This type combines the benefits of refrigerant and desiccant technologies for optimal moisture removal.
o They are effective in various temperature and humidity conditions.
Again, remember that when choosing a crawl space dehumidifier, it’s essential to consider the specific needs of your crawl space, such as its size, humidity levels, and environmental conditions. The type of dehumidifier you select should align with these factors to ensure efficient and effective moisture control. Additionally, ensure the dehumidifier is appropriately sized for your crawl space to achieve the desired results.
How to Install Crawl Space Dehumidifier – Installation Tips
Proper installation and placement of your best crawl space dehumidifiers are vital to its effectiveness. Here’s how to ensure you get the most out of your investment:
1. Elevate your Dehumidifier: Place it on a stable above-ground surface to protect it from water damage. You can use bricks or blocks to elevate it, ensuring it stays above potential water accumulation.
2. Positioning Matters: Position the dehumidifier in a central location within the crawl space to allow for even air circulation. Avoid places near walls or corners, hindering airflow and moisture removal.
3. Check the Drainage: If your dehumidifier has a drainage system, ensure the drain hose is installed correctly and directed away from the crawl space to prevent the collected water from pooling in the area.
4. Maintaining Easy Access: Although crawl spaces can be very tight, make sure that your dehumidifier will be easily accessible for maintenance, filter replacement, and adjustments.
Factors to Consider Before Buying a Crawl Space Dehumidifier
Before investing in a crawl space dehumidifier, it’s crucial to consider several factors to ensure you select the most suitable unit for your specific needs. Here are the key factors to keep in mind:
1. Crawl Space Size
Measure the dimensions of your crawl space. This will determine the capacity (pints per day) for effective moisture control.
2. Humidity Levels
Understand the typical humidity levels in your region. Some areas have consistently high humidity, while others may experience spikes during certain seasons.
3. Energy Efficiency
Opt for an energy-efficient model to minimize operational costs over time. Look for Energy Star-certified units or those with energy-saving features.
4. Coverage Area
Ensure the dehumidifier’s capacity matches the size of your crawl space. It’s better to choose a model with a slight excess in capacity for optimal performance.
5. Drainage Options
Consider how the dehumidifier will drain collected water. Options include gravity drainage, condensate pumps, or a built-in reservoir. Choose based on your specific setup.
6. Access and Installation
Evaluate the accessibility of your crawl space. You may need a compact or low-profile dehumidifier if it’s particularly tight or has limited headroom.
7. Temperature Range
- Some dehumidifiers are designed for use in colder temperatures. If you live in an area with harsh winters, ensure the unit can operate effectively in low temperatures.
- Considering the temperature range capability of a dehumidifier is crucial, especially for those living in regions with colder climates.
Here’s why it’s important to choose a dehumidifier suitable for colder environments
Prevents Freezing and Malfunction: In colder temperatures, the coils of a dehumidifier can freeze if the unit is not designed to operate in low temperatures. This can lead to reduced efficiency or even complete malfunction.
Ensures Continuous Operation: A dehumidifier with a wider temperature range can function reliably throughout the year, providing consistent moisture control even during winter.
Preserves Structural Integrity: In areas prone to freezing temperatures, excess moisture can lead to ice formation on surfaces, potentially causing structural damage over time.
Avoids Condensation Issues: Condensation can occur in crawl spaces during cold weather without proper dehumidification. This can lead to mold growth, wood rot, and other moisture-related problems.
Saves Energy and Money: A dehumidifier that can effectively operate in low temperatures will ensure you’re not wasting energy on a unit that constantly shuts down due to freezing coils.
Protects Valuables: In crawl spaces used for storage, a dehumidifier with a wider temperature range helps safeguard valuable items from moisture-related damage, even in winter.
Maintains Indoor Air Quality: Effective dehumidification in colder temperatures helps maintain a healthy indoor environment by preventing mold growth and minimizing allergens.
8. Built-In Features
- Consider additional features like digital controls, automatic defrost, adjustable humidity settings, and built-in air filters.
- These additional features can enhance convenience and customize moisture control.
9. Noise Levels
- If the crawl space is near living areas or noise is a concern, look for models with lower decibel ratings for quieter operation.
- If you do not consider this feature in your dehumidifier, you might experience terrible noise during its operation.
10. Maintenance Requirements
Consider the ease of maintenance. Look for units with accessible filters and clear instructions for routine cleaning.
11. Warranty and Support
Check the manufacturer’s warranty and customer support options. A reputable brand with good customer service can provide peace of mind.
12. Reviews and Ratings
Read available customer reviews and ratings on reputable platforms to gain insights into the performance and reliability of specific models.
13. Budget
Determine your budget range and explore options within that range. While finding a cost-effective option is important, prioritize quality and features that meet your requirements.
Maintenance of your Crawl Space Dehumidifier
Regular maintenance is crucial to ensure your crawl space dehumidifier’s optimal performance and longevity. Here’s a step-by-step guide for keeping it in top condition:
1. Shut Off the Power
Before beginning maintenance, ensure the dehumidifier is disconnected from power to prevent accidents.
2. Clean or Replace Air Filters
Check the air filters regularly (usually every 1-2 months) and clean or replace them if they are dirty. Clean filters allow for efficient airflow and better moisture removal.
3. Inspect Drainage System
Check the drainage system for any clogs or obstructions. Ensure that the drain line is clear and water can flow freely.
4. Empty Water Reservoir (If Applicable):
If your dehumidifier has a built-in reservoir, empty it regularly to prevent overflow.
5. Clean the Coils
Gently vacuum or brush the coils to remove dust and debris. Clean coils allow for efficient heat exchange and prevent freezing.
6. Check for Leaks
Inspect the dehumidifier and the surrounding area for any signs of water leakage. Address any leaks promptly to prevent damage.
7. Inspect the Power Cord
Ensure the power cord is in good condition and free from any fraying or damage. Replace it if necessary to avoid electrical hazards.
8. Test the Humidistat
Verify that the humidistat (humidity control) is functioning correctly. Adjust it to your desired humidity level and ensure the unit responds accordingly.
9. Inspect the Fan
Ensure the fan blades are clean and free from obstructions. Gently wipe them down if needed.
10. Check for Frost or Ice Build-Up
In colder climates, monitor for frost or ice accumulation on the coils. If present, it may indicate a need for adjustment or servicing.
11. Verify Proper Airflow
Ensure that there are no obstructions around the dehumidifier that could hinder airflow. Proper ventilation is essential for effective dehumidification.
12. Inspect the Condensate Pump (If Applicable)
Check for clogs or malfunctions if your dehumidifier has a condensate pump. Ensure it’s working smoothly.
13. Test the Defrost Function (If Applicable)
If your unit has a defrost function, test it to ensure it operates properly in colder temperatures.
14. Keep the Surrounding Area Clean
Clear away debris, dust, or cobwebs around the dehumidifier to maintain optimal performance.
Regular upkeep and maintenance extend the lifespan of any dehumidifier, ultimately saving you money in the long run.
Top Recommendations for the Best Crawl Space Dehumidifiers With Positive Reviews
Here are five 5 best crawlspace dehumidifiers.
1. Moiswell 212 Pints Commercial Dehumidifier with Pump and Drain Hose, Crawl Space dehumidifier Basement, Industry Water Damage Unit for up to 8,000 sq ft Basements, Ideal for Industrial or Whole Home and Job Sites
o Rating: 4.7 out of 5 stars (Amazon)
o Availability: In Stock
Key Features:
o Removes up to 212 pints of moisture per day
o Covers areas up to 8,000 square feet
o Auto Restart after Power Outage
o Auto Drain by Pump
o Auto Defrost
o Recommended Uses For Product: Commercial & Indoors
Reviews:
o Value for money: 5.0
o Easy to install: 5.0
o Easy to use: 5.0
o Noise Level: 5.0
o The units are ideal for Industrial or Whole Home and Job Sites.
2. ALORAIR Commercial Dehumidifier 113 Pint, with Drain Hose for Crawl Spaces, Basements, Industry Water Damage Unit, Compact, Portable, Auto Defrost, Memory Starting, 5 Years Warranty, Sentinel HD55
o Rating: 4.5 out of 5 stars (Amazon)
o Availability: In Stock
o Climate Pledge Friendly: Product with a trusted sustainability certification
The AlorAir Sentinel HD55 is a powerhouse for crawl space dehumidification. Its high capacity and energy-efficient design make it a top pick for large crawl spaces. Its durable build and outstanding performance make it a reliable choice for long-term moisture control.
Key Features:
o Removes up to 53 pints of moisture per day
o Covers areas up to 1,200 square feet
o Energy-efficient with an ETL-listed mark
o Recommended Uses For Product: Commercial
o Special Features: Continuous Draining, Automatic Defrost
Reviews:
o Maneuverability: 4.7
o Noise Level: 4.3
o Energy efficiency: 4.3
o Remote Control: 3.8
o They are lowering the humidity to comfortable levels in a short period.
3. ALORAIR 180 PPD Commercial Dehumidifier with Pump Drain Hose for Basement Warehouse & Job Sites, Large Capacity Crawl Space Dehumidifier for Water Damage Restoration, 5 Years Warranty, Yellow
o Rating: 4.4 out of 5 stars (Amazon)
o Availability: In Stock
o Climate Pledge Friendly: Product with a trusted sustainability certification
The AlorAir is an efficient crawl space dehumidifier. It has a Pump Drain Hose for the Basement Warehouse Job Sites.
Key Features:
o Removes up to 180 pints of moisture per day
o Covers areas up to 2,300 square feet
o Energy-efficient
o Recommended Uses For Product: Commercial
o Special Features: Continuous Draining, Automatic Defrost
o Condensate Pump: Available
Reviews:
o Energy Efficiency: 4.4
o Accuracy: 4.3
o Easy to use: 4.6
o Noise Level: 3.8
o Commercial quality and made to last.
4. ALORAIR Crawl Space Dehumidifiers 120 PPD Moisture Removal, Energy Star Certified Crawlspace Dehumidifiers Commercial Dehumidifier for Basement, Auto Defrost, cETL Listed, 5 Years Warranty
o Rating: 4.4 out of 5 stars (Amazon)
o Availability: In Stock
o Climate Pledge Friendly: Product with a trusted sustainability certification
The AlorAir is an efficient crawl space dehumidifier. It’s high capacity and energy-efficient design make it a top pick for large crawl spaces. Its durable build and outstanding performance make it a reliable choice for long-term moisture control.
Key Features:
o Removes up to 55 pints of moisture per day
o Covers areas up to 1,300 square feet
o Energy-efficient
o Recommended Uses For Product: Commercial
o Special Features: Continuous Draining, Automatic Defrost
o Condensate Pump: Available
Reviews:
o Maneuverability: 4.6
o Easy to install: 4.6
o Easy to use: 4.4
o Remote Control: 4.0
o The units are extremely heavy-duty and do a fantastic job.
5. BLUEDEEP Basement/Crawl Space Dehumidifier,145 Pints (Saturation) 70 Pints Auto Defrost Commercial Dehumidifier with Drain Hose for Water Damage Storage,5 Years Warranty
o Rating: 4.3 out of 5 stars (Amazon)
o Availability: In Stock
It quickly and effectively removes moisture with less energy than conventional dehumidifiers without raising the energy bill, saving money. It will be the best crawl space/basement dehumidifier you will ever use.
Key Features:
o Removes up to 145 pints of moisture per day
o Covers areas up to 6,000 square feet
o Energy-efficient
o Recommended Uses For Product: Commercial
o Special Features: Continuous Draining, Automatic Defrost
Reviews:
o Maneuverability: 4.0
o Noise level: 4.0
o Easy to use: 3.9
o Remote Control: 3.9
o The units are extremely heavy-duty and so fast in dehumidifying.
Conclusion
Investing in a reliable best crawl space dehumidifier is the key to maintaining healthy, moisture-free conditions in your home. Among the top options, the given types stand out for their exceptional performance, high ratings, and availability. By considering factors such as capacity, energy efficiency, coverage area, and built-in features, you can make an informed decision to protect your crawl space and ensure the longevity of your home’s structure. Be prepared to finally say goodbye to moisture-related issues with these top-notch dehumidifiers.
