Manufacturer Coverage Is A Claim
The assistant compares your entered floor area only against each product's manufacturer-reported maximum coverage field.
Sizing assistant
Find crawl-space dehumidifiers that match your setup.
Results use verified manufacturer specifications to narrow the product catalog, but they are not an engineering sizing guarantee or a claim that a specific model is correctly sized.
Sizing and selection assistant
Selection context
Square footage alone does not determine moisture load. Crawl-space height, sealing, climate, ground moisture, airflow, and water entry can all change how much work a dehumidifier actually does.
Rated/AHAM PPD and maximum PPD describe different rating conditions. Maximum or saturation capacity is measured in very humid conditions; rated or AHAM values should be read with their stored test-condition notes.
Context only; the assistant does not apply a sealing-based sizing multiplier.
Before results
Enter floor area, then show matching products.
The assistant will compare your setup against verified manufacturer specifications. It will not create a hidden moisture-load formula or claim that a specific model is correctly sized.
How to interpret the results
Pump Needs Are Practical
A built-in pump can matter when condensate must move upward or farther away. A suitable gravity drain can make a pump unnecessary.
Unknowns Stay Visible
Products with missing relevant data are separated as possible matches instead of being treated as confirmed fits.
Moisture Load Varies
Sealing, climate, crawl-space height, air leakage, and water sources can all change real-world runtime and performance.
When to go beyond the assistant
DrySpace does not publish a definitive crawl-space sizing formula. The assistant is a product-catalog filter built from verified fields, not a replacement for evaluating the actual building conditions. For more context, read the coverage claims guide.
Bulk water intrusion, drainage problems, structural concerns, electrical work, or suspected mold may require evaluation by an appropriate qualified professional before purchasing equipment.