is now retired.

For your convenience your projects will be available for a six month transition period.

Please register at our new site with enhanced functionality:

RenewAire ERV Calculator (ERV Calc)

Welcome to our ERV Calculator (ERV Calc).  Click the links above to get started on creating your new projects or reviewing older projects.


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ERV Calculator Enhancement Details
For more details on the ERV Calculator’s recent enhancements,
watch a video tutorial outlining the enhancements.