Sizing search guide
What Size Dehumidifier for a 1,500-2,000 Sq Ft Crawl Space?
Floor area is a useful starting point, but it is not enough to guarantee the correct crawl-space dehumidifier. DrySpace uses verified manufacturer specifications to narrow products without inventing a square-foot-to-pint formula.
Start with constraints, not a fake formula
Bulk water comes first
A dehumidifier is not a substitute for correcting standing water, groundwater, drainage problems, plumbing leaks, or exterior-water entry. Active water intrusion should be addressed separately from equipment selection.
Models whose manufacturer-reported coverage includes this range
The table below includes products whose verified manufacturer-reported maximum coverage is at least 2,000 sq ft. These are not guaranteed recommendations for a specific crawl space.
| Manufacturer | Model | AHAM PPD | Maximum PPD | Manufacturer max coverage | Airflow | Pump | Operating temperature | Research |
|---|---|---|---|---|---|---|---|---|
| Moiswell | Aegis HP110 | 53 pints/day | 120 pints/day | 4,500 sq ft | 180 CFM | Yes | 41-95 F | Product page |
| Moiswell | Defender M70 | 70 pints/day | 145 pints/day | 6,000 sq ft | 206 CFM | No | 41-95 F | Product page |
| Moiswell | Defender MP70 | 70 pints/day | 145 pints/day | 6,000 sq ft | 206 CFM | Yes | 41-95 F | Product page |
| Moiswell | Aegis H150 | 70 pints/day | 155 pints/day | 6,500 sq ft | 253 CFM | No | 41-95 F | Product page |
| Moiswell | Aegis HP150 | 70 pints/day | 155 pints/day | 6,500 sq ft | 253 CFM | Yes | 41-95 F | Product page |
| AlorAir | Sentinel HD90 | 90 pints/day | 198 pints/day | 2,600 sq ft | 210 CFM | No | 33.8-104 F | Product page |
| AlorAir | Sentinel HDi90 | 90 pints/day | 198 pints/day | 2,600 sq ft | 210 CFM | Yes | 33.8-104 F | Product page |
Research these models
Moiswell
Aegis HP110
53 pints/day AHAM / 4,500 sq ft
Moiswell
Defender M70
70 pints/day AHAM / 6,000 sq ft
Moiswell
Defender MP70
70 pints/day AHAM / 6,000 sq ft
Moiswell
Aegis H150
70 pints/day AHAM / 6,500 sq ft
Moiswell
Aegis HP150
70 pints/day AHAM / 6,500 sq ft
AlorAir
Sentinel HD90
90 pints/day AHAM / 2,600 sq ft
AlorAir
Sentinel HDi90
90 pints/day AHAM / 2,600 sq ft
Use your actual crawl-space setup
Check your crawl-space constraints
The sizing assistant compares your floor area, drainage situation, and temperature input against verified product fields. It does not claim that a specific pint rating is correct for every 1,500-2,000 sq ft crawl space.
Check your crawl-space constraintsContinue researching
AHAM vs maximum PPD
Understand how pint ratings differ before comparing capacity.
Pump vs gravity drain
Decide whether drainage route points toward a pump model.
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