Thermodynamics of ERV/HRV Preheat

I’m interested in improving cold weather ventilation in our 100 year old home, with extensive energy efficiency retrofitting.  As the building envelope has tightened up, air quality (monitored primarily with… I’m interested in improving cold weather ventilation in our 100 year old home, with extensive energy efficiency retrofitting.  As the building envelope has tightened up, air quality (monitored primarily with…Read MoreGreenBuildingAdvisor