RED Calc Free

v1.0, Legacy Tool

Summary: Allows you to easily achieve accurate Zone Pressure Diagnostics (ZPD) testing results. Determine air leakage between the house and zone, zone and outdoors, and through the zone. Displays uncertainty as an absolute amount and percentage. See Tool Guide. Click on any input or result label for help. By using this tool (application) you agree to the Terms of Use.

This legacy tool is NOT optimized for mobile devices. Stay tuned for the mobile-optimized version 2.0.

By continuing to use the site, you agree to the use of cookies. more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below, then you are consenting to this.