Do I really need one if my home already has good airflow?
Tightly built homes don’t get natural airflow the way older homes do. Without mechanical ventilation, pollutants, moisture, and stale air have nowhere to go, which affects indoor air quality more than most homeowners expect.
How do I know if my air exchanger is working?
Signs it needs attention include stale indoor air, increased window condensation, higher humidity than usual, or a musty smell. A properly working unit should keep indoor air feeling fresh without major humidity swings.
Why is my air exchanger icing up?
Icing typically happens in extreme cold when the balance between incoming and outgoing airflow isn’t properly calibrated. It usually points to a setting or maintenance issue rather than equipment failure.
What’s the difference between an HRV and an ERV?
An HRV (heat recovery ventilator) transfers heat between incoming and outgoing air. An ERV (energy recovery ventilator) transfers both heat and moisture. Which one your home has depends on your climate and builder specifications.
What is an air exchanger?
It’s a ventilation system that exchanges stale indoor air for fresh outdoor air while recovering heat or moisture from the outgoing air. It’s especially common in newer, tightly built homes designed for energy efficiency.