How do you determine the correct sizing of an HRV?
...HRV is undersized. I have 3300 sq ft of living space, an air tightness of 1.5ACH and an HRV with 59CFM. Hope someone can clarify. Cheers To properly size a home ventilation system you really should have a professional, and you may need one anyway for permitting. We don't like to weigh in on topics that where you will n...