ERV Retrofit Wall Supply Points and Insulation

Looking at installing a ventilation system with dedicated supply and return ducting in a Zone 5 ranch with a basement. The system supply/exhaust I know will be insulated. It seems that returns… Looking at installing a ventilation system with dedicated supply and return ducting in a Zone 5 ranch with a basement. The system supply/exhaust I know will be insulated. It seems that returns…Read MoreGreenBuildingAdvisor