Many of you discovered my content when you saw my video in which I built a DIY heat recovery ventilator (HRV) from coroplast. Today, I'll tell you how my DIY HRV performed long-term, and explain why I eventually chose to buy an energy recovery ventilator (ERV) instead.

Once this video is over, I guarantee you'll understand humidity in a whole new way. You'll also be an expert on the difference between HRVs and ERVs. We'll talk about psychrometrics, sensible energy, latent energy, and more - in a way that DOESN'T confuse you!