When renovating an older home do I need an HRV or ERV?
I'm looking for ways to tighten up the envelope as I make improvements. One question I have though is does it make sense to install an HRV in an older leaky home? There are lots of articles explaining the importance of balanced ventilation in tight homes, seems like air quality could/should be improved in older leaky homes as well. Or would the excessive air leaks make the HRV not effective?