Indoor Air Purifier & Dehumidifier Contractor Canada

Outside Design Temperature (°C): See selection chart to the right for your region

Outside Design RH (%): See selection chart to the right for your region

Space Design Temperature (°C): What is your desired indoor temperature?

Space Design RH (%): What percent humidity do you wish to maintain?

Location

Outside Temperature:

Outside RH:

Total Conditioned Square Feet (ft²): What is your home's 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

Enter number of chimney fireplaces: Traditional flue-type, vented fireplaces

Construction Type	Air Change factor	Example
Average/Default	0.50	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	0.30	Select only when air infiltration has been verified as 0.30 or less

Note: using an infiltration air change value lower than actual will result. Undersizing the humidifier and not meeting the space design conditions.

Load (lbs/hr): --

Gallons Per Day: --