Blog

The air exchange system: The system in our homes that perhaps remains the biggest mystery to new homeowners. We throw the acronyms ERV and HRV around as though they're as universally understood as PB&J or LOL, but to many, the notion of active, pre-filtered fresh air exchange in your home is at odds with most homeowners' experience with the drafty New England farmhouse (which our homes, of course, are not). To help shed some light on what these systems are and what they do, we tapped local expert, Kurt Johnson, of Fresh Air Ventilation in Lewiston, Maine. He offers some great insights, tips, and clear explanations on these critical systems.