Ventilation Without Wasting Energy: Check Out An Energy Recovery Ventilator by Mike Rampey | February 23, 2011February 23, 2011 Energy recovery ventilation units (ERVs) allow you to recapture energy produced by your HVAC system while ventilating your home. They bring in fresh, filtered air while expelling used, stale air. […]Read More Filed Under: Ventilation Tagged With: efficiency air– energy recovery ventilators– environmental protection agency– incoming air– indoor pollutants– outgoing air– ventilation options