Humidification Calculator

Design Conditions

These variables are found based on your location. Select your location in the dropdown on the right.

See selection chart to the right for your region
See selection chart to the right for your region
What is your desired indoor temperature?
What percent humidity do you wish to maintain?
Location
Outside Design Temperature

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Outside Design RH

Choose one of the three RH variables given and enter it into the calculator on the left.

7:30 am 1:30 pm 7:30 pm
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Whole-House Humidity Load Calculation

Total Conditioned Square Feet (ft²): What is your homes total square feet?
Average Ceiling Height (ft): What is your homes average ceiling height?
Air changes per hour: See selection chart to the right for input factor
Number of Chimney Fireplaces: Traditional flue type dampered to outdoor fireplace
Build Type Air Changes Example
Average/Default 0.5 Standard Factor to be used in residential humidity load calculation
Older Uninsulated Home 0.75 to 1.00 Homes with single pane windows, little insulation, historic and farm homes
Newer Home Construction 0.35 Select only when air infiltration has been verified as 0.35 or less

Results

Load (lbs/hr): N/A
Gallons Per Day: N/A

Take Control

We spend most of our days indoors. It is important to control the indoor relative humidity to maintain a comfortable and health indoor air environment.

Very low humidity in your home in winter can result in dry, itchy skin or dry sinuses and nose. Dry skin can crack and peel and will look unattractive and can lead to infections. Dry noses and sinuses may lead to a clogging or swelling and closing of the air passages and cause breathing difficulty at night.

Choosing a GeneralAire Humidifier will improve your comfort indoors and maintain a healthy environment so you can breathe a little easier.