Should I size up for high ceilings?

Yes. Taller ceilings mean more air volume; bump up a size if ceilings are well above 8 ft.

Does this handle continuous leaks?

No. Fix the source first. Very wet settings may still need larger/commercial units and drainage.

It’s a simplified estimate; manufacturer recommendations vary slightly. Use this to get in the right range.

Use total square footage for connected spaces, or size per room if doors stay closed.

If the unit will run often, a drain hose or pump avoids manually emptying the bucket.

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Estimate the pints-per-day capacity needed based on room size and moisture level.

Enter the room size in square feet.
Choose the moisture level (normal, damp, wet, very wet).
Review the recommended pints per day; use the rounded number to pick a unit size.

Room area: Square footage of the area you want to dehumidify.
Moisture level: Select dampness to adjust capacity upward for tougher conditions.

Baseline capacity starts around 30 pints per 1,000 sq ft. Damp/wet conditions need more to keep up.

We scale capacity by room size and apply a multiplier for the selected moisture level.

Base pints ≈ Sq ft × 0.03 (≈30 pints per 1,000 sq ft)
Recommended = Base × moisture multiplier

If ceilings are significantly higher than 8 ft, size up.
For very wet areas or ongoing leaks, fix the source and consider a higher-capacity unit with drainage.
Round up if you’re between sizes; undersizing can leave moisture behind.
Simplified sizing; does not account for ceiling height, infiltration, or continuous water intrusion.
Treat as a starting point—manufacturer charts may vary slightly.
Extremely wet spaces may need multiple units or remediation.

Estimate dehumidifier size by entering room square footage and moisture level to get recommended pints per day.

Use this as a starting point to choose the right capacity; size up for high ceilings or very wet areas.

Should I size up for high ceilings?: Yes. Taller ceilings mean more air volume; bump up a size if ceilings are well above 8 ft.
Does this handle continuous leaks?: No. Fix the source first. Very wet settings may still need larger/commercial units and drainage.
Is this the same as manufacturer charts?: It’s a simplified estimate; manufacturer recommendations vary slightly. Use this to get in the right range.
What about multiple rooms?: Use total square footage for connected spaces, or size per room if doors stay closed.
Do I need a pump or drain hose?: If the unit will run often, a drain hose or pump avoids manually emptying the bucket.

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Simplified sizing guide. Always check specific unit specs and address moisture sources for best results.