House Works: Keeping the air fresh in a tiny home

Q: Where can I install a heat recovery ventilator in my 832 square-foot home? I don’t have a basement, just a crawlspace.
A: As much as I love heat recovery ventilators (HRVs) because of the fresh air and condensation-free windows they provide during cold weather, given that your house is so small, I wouldn’t install one.
The cost of losing precious living space to the HRV itself and to the air ducts is just too high given the benefits that an HRV offers in a small space like yours.