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To contact CGF directly, please dial (888) 216-9184.

Humidifier Capacity Calculator

Enter a value in each of the requested fields. Once you have calculated the "Load / Gallons Per Day" for your home, select from steam, flow through or drum humidifier models that are designed to generate the Gallons Per Day your home needs.

The first two entries (Outside Temperature and Outside RH) will be based on your Location Selection (state and closest city) to the right in the shaded box.

Outdoor / Indoor Conditions

Outside Temperature
Outside 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

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


Load (lbs/hr): --
Gallons Per Day: --
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