What Is the Best Dehumidifier for a Crawl Space?

The best dehumidifier for a crawl space depends on factors like square footage, humidity levels, and drainage options. Here are some top recommendations and what to look for:

Top Crawl Space Dehumidifiers

Aprilaire 1820 Pro – Best for small to medium crawl spaces
70-pint capacity
Built-in auto-drain
Compact & energy efficient

AlorAir Sentinel HD55 – Best budget option
55-pint capacity
Energy Star certified
Optional remote control

Dri-Eaz PHD 200 – Best for large crawl spaces
134-pint capacity
Durable industrial-grade design
Built-in pump for continuous drainage

PREAIR HD103 crawl space dehumidifier for sale – Best for whole house

103-pint capacity

3/4NPT direct drainage

Built with humidistat

Support Modbus control and third-party control

Long warranty and good after-sales service

Santa Fe Compact70 – Best for high humidity
70-pint capacity
Works in low temperatures (ideal for basements & crawl spaces)
Built to last

Key Features of a Crawl Space Dehumidifier to Look For

Capacity: Choose based on your crawl space size (e.g., 50-70 pints for 1,000-2,500 sq. ft.)
Drainage Options: A built-in pump helps with continuous drainage.
Low-Temperature Operation: Crawl spaces can be cold—pick one that works in low temps (~36°F or lower).
Energy Efficiency: Look for Energy Star-rated models to save on power.
Compact & Durable Design: Crawl space models should be compact and resistant to dust/moisture.