Homeowner planning tool
Moisture-range illustration
Explore how area and a broad dampness description change a legacy reference range. This is an illustration, not equipment sizing. Start with the moisture source.
Your inputs
Starts with example figures. Replace them with your own values; results update as you type. These examples are not equipment recommendations or current utility prices.
Example calculation
Sample estimate
- Illustrative legacy-factor range
- 20 to 28
Pints per day in this approximate model
Check every input and read the assumptions below. Unchanged fields may still contain example figures.
What the result means
Assumptions and limits
These legacy reference factors are approximate and have not been validated as an equipment-sizing standard. The range does not select a product. Leaks, standing water and persistent wet materials need investigation; a dehumidifier does not repair the cause.
Indoor air quality servicesHow this calculator works
Per 500 square feet, this model uses 10 to 14 pints/day for moderately damp, 12 to 18 for very damp, 14 to 22 for wet, and 16 to 26 for extremely wet. Multiply by area/500 and round to whole pints. Air leakage, temperature and moisture sources are not modeled.
Before you decide
What your results mean
Use the result with its assumptions and limitations.
Can this result select a dehumidifier?
No. This legacy-factor illustration varies area and broad dampness descriptions; it does not measure a moisture load or model leakage, temperature and sources. Use it to understand how assumptions change a rough range, then arrange an assessment before specifying equipment. The method remains unvalidated for sizing.
What does the dampness description establish?
It selects a broad legacy reference factor, not a measured moisture load. The resulting range has not been validated as an equipment-sizing standard and cannot select a dehumidifier.
What should be checked before purchasing equipment?
Investigate leaks, wet materials and moisture entry, then review room conditions, air connections and drainage. Moisture-removal equipment does not repair the underlying water source.
Your next step
Discuss your home’s equipment
Bring the estimate and your questions. Equipment selection needs more information about your home than a calculator can collect.
