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3 Best Dehumidifiers for Crawl Spaces – Say Goodbye to Dampness

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Ever had that annoying musty smell in your crawl space that just sticks around no matter what you do? It's super frustrating, right?

Well, picture this: a dehumidifier that actually zaps that dampness away, making your home feel fresher and healthier.

Want to know how these awesome dehumidifiers can turn your crawl space from a damp, musty spot into a nice, dry hangout?

Alorair Commercial Dehumidifier 113 Pint (Sentinel HD55)

high capacity dehumidifier for commercial use

If you're seeking a durable and efficient dehumidifier for crawl spaces, the Alorair Commercial Dehumidifier 113 Pint (Sentinel HD55) is the ideal choice. This 113-pint dehumidifier is designed for areas up to 1,200 sq.ft, sporting a metal outer casing for enhanced durability. You'll appreciate the auto defrosting system that eliminates the need for manual water drainage. The MERV-1 Filter provides dust protection, and its compact, portable design ensures convenience.

Operating at 460 Watt-hours, with a dehumidification capacity of 53 pints per day, the Alorair HD55 Blue ensures effective humidity control. Additionally, its 5-year warranty offers peace of mind, making it a reliable option for your crawl space dehumidification needs.

Best For: Homeowners with crawl spaces or basements seeking a durable and efficient dehumidifier for areas up to 1,200 sq.ft.


  • Auto defrosting system eliminates manual water drainage
  • Compact and portable design for convenience
  • 5-year warranty provides peace of mind


  • Initial issues may be encountered

Alorair Crawl Space Dehumidifier 120 PPD (5 Years Warranty)

highly effective crawl space dehumidifier

Ideal for those seeking an Energy Star Certified dehumidifier with a 5-year warranty, the Alorair Crawl Space Dehumidifier 120 PPD stands out for its efficient moisture removal and durability. This dehumidifier features automatic defrost for low-temperature operation, internal corrosion protection for coil longevity, and a modern design suitable for various applications.

With specifications including 120 PPD moisture removal, coverage of up to 1300 sq. ft, and a 120-pint capacity, this unit is a reliable choice for crawl spaces. Customers have praised its efficiency and durability, along with positive feedback on humidity level maintenance. Consider this option for a high-performing dehumidifier with a long warranty and safety-tested features to combat dampness effectively in your crawl space.

Best For: Those looking for a highly efficient and durable dehumidifier with a long warranty for use in crawl spaces.


  • Energy Star Certified with automatic defrost for low-temperature operation
  • Internal corrosion protection for extended coil longevity
  • Suitable for various applications with a modern design


  • Some users reported issues with the fan performance over time

Alorair 70 PPD Crawl Space Dehumidifier (5 Years Warranty)

high capacity dehumidifier for crawl space

With its Energy Star certification and ability to cover up to 1,000 sq. ft, the Alorair 70 PPD Crawl Space Dehumidifier is a top choice for those seeking efficient moisture control in larger crawl spaces. This unit removes 35 pints per day in AHAM conditions, ensuring a dry environment. Its continuous hose drainage and automatic defrost function make maintenance hassle-free. The MERV-1 filter traps up to 95% of pollutants, contributing to cleaner air. With a noise level of less than 50 decibels, you can enjoy peace and quiet while it operates. Backed by a 5-year warranty, this dehumidifier offers reliability and peace of mind. Easy to set up and praised for its energy efficiency, the Alorair 70 PPD is a compact and effective solution for controlling humidity levels in your crawl space.

Best For: Homeowners with larger crawl spaces seeking efficient moisture control and clean air.


  • Energy Star Certified for energy efficiency
  • Removes up to 35 pints of moisture per day
  • Continuous hose drainage for hassle-free maintenance


  • Power consumption may be higher than rated

Factors to Consider When Choosing a Dehumidifier for Crawl Space

When choosing a dehumidifier for your crawl space, you should consider the size and coverage it offers, the efficiency in its operation, and the available drainage solutions.

Make sure to also look into the durability and warranty of the unit, as well as the noise levels it produces.

These factors will help you select the best dehumidifier to effectively control moisture in your crawl space.

Size and Coverage

Considering the square footage of your crawl space is crucial in selecting a dehumidifier that adequately covers the area. For larger crawl spaces, opt for dehumidifiers with higher pint per day (PPD) capacities to ensure efficient moisture removal.

It's essential to choose a dehumidifier that can effectively reduce humidity levels in enclosed spaces like crawl spaces. Additionally, if your crawl space experiences colder temperatures, check that the dehumidifier can operate effectively in low temperatures.

To simplify maintenance, look for a dehumidifier with continuous drainage options, especially in hard-to-reach crawl spaces, to avoid manual water removal. Matching the size and coverage of the dehumidifier to your crawl space's dimensions is key to combating dampness effectively.

Efficiency in Operation

Select a dehumidifier with high dehumidification capacities to efficiently extract moisture from your crawl space and maintain optimal humidity levels. Opt for energy-efficient models that can run continuously without driving up power consumption, ultimately lowering energy expenses.

Choose units equipped with automatic defrost functions to ensure effective operation even in low-temperature environments, guaranteeing consistent performance year-round. Prioritize dehumidifiers with reliable drainage systems to facilitate hassle-free water removal from the crawl space, enhancing overall efficiency.

Drainage Solutions

Opt for a dehumidifier featuring continuous hose drainage to streamline water removal in crawl spaces efficiently.

Choosing a unit with automatic defrost functions is crucial to prevent frost buildup, especially in low-temperature crawl spaces.

Make sure the dehumidifier includes a reliable internal corrosion protection system to extend the coil's lifespan.

Evaluate the drainage setup of the dehumidifier to ensure it aligns with crawl space conditions and available drainage options.

Additionally, consider dehumidifiers with modern design features that enhance drainage efficiency in crawl spaces.

Durability and Warranty

To ensure lasting performance in your crawl space, prioritize durability and warranty when selecting a dehumidifier. Look for units with extended warranties like 5-year options for added protection.

Opt for dehumidifiers equipped with stainless steel coils and corrosion protection features to ensure longevity in humid conditions. Choose models with robust construction and quality materials that can withstand the unique challenges of crawl spaces.

Before making a decision, evaluate user reviews to gauge the durability and long-term performance of the dehumidifier. By considering these factors, you can invest in a reliable unit that will effectively combat dampness in your crawl space for years to come.

Noise Levels

Consider the noise level of the dehumidifier as a crucial factor when choosing a unit for your crawl space, especially in areas where disruptive sounds can be a nuisance. Look for models with noise levels below 50 decibels to ensure minimal disturbance in living or working spaces.

Lower noise levels can enhance comfort and make the dehumidifier suitable for various environments without causing distractions. Noise levels, measured in decibels (dB), significantly impact the user experience, particularly in quiet areas like bedrooms or offices.

Opting for a dehumidifier with low noise output contributes to a peaceful environment while effectively managing humidity levels in the crawl space.

Energy Efficiency

Looking for energy-efficient dehumidifiers for your crawl space? Opting for energy-efficient models can help cut down on electricity costs by consuming less power. When choosing a dehumidifier, seek out Energy Star certified options adhering to stringent EPA energy efficiency guidelines.

Check the wattage and energy consumption of the unit to gauge its effectiveness in moisture removal. Higher energy efficiency ratings indicate superior moisture extraction with minimal power usage. Features like automatic shut-off and energy-saving modes can further boost efficiency.

Prioritize dehumidifiers that strike a balance between effective moisture control and energy conservation, ensuring a dry crawl space without the burden of high energy bills.

Frequently Asked Questions

Can Dehumidifiers Be Used in Crawl Spaces With Limited Access?

In tight crawl spaces, dehumidifiers can work wonders despite limited access. They help combat dampness effectively. Remember, where there's a will, there's a way. So don't let cramped spaces stop you from enjoying a dry environment.

Are Dehumidifiers in Crawl Spaces Noisy and Disruptive?

Dehumidifiers in crawl spaces can be noisy but newer models are quieter. Look for units with noise-reducing features for a more peaceful environment. Regular maintenance helps keep them running smoothly and reduces disruptions.

How Often Should the Water Tank in a Crawl Space Dehumidifier Be Emptied?

When using a dehumidifier in a crawl space, you should empty the water tank at least once a day. Regularly monitoring and emptying the tank helps maintain the dehumidifier's efficiency and prevents any potential overflow issues.

Can a Dehumidifier Be Used in a Crawl Space With Existing Mold Growth?

Yes, you can use a dehumidifier in a crawl space with existing mold growth, but it's crucial to address the mold issue first. Consult with a professional to safely remove the mold before running the dehumidifier to prevent further spread.

Are Crawl Space Dehumidifiers Energy Efficient and Cost-Effective to Run?

In the realm of crawl space dehumidifiers, efficiency reigns supreme. These units, when chosen wisely, can be both energy-efficient and cost-effective. Say farewell to dampness and embrace the comfort of a well-maintained crawl space.