Choosing Between ERV and HRV for Your Passive House Air sealing and ventilation are two halves of the same envelope. Use the Air Sealing ROI Calculator(/tools/air-sealing-calculator) to size the airtightness savings, then return here to pick the right balanced ventilator. When deciding between an ERV (Energy Recovery Ventilator(/glossary/erv)) and an HRV (Heat Recovery Ventilator) for your Passive House(https://en.wikipedia.org/wiki/Passivehouse), the choice largely depends on your climate, indoor humidity needs, and budget. Here’s the quick breakdown: - ERVs manage both heat and moisture, making them ideal for humid or very dry climates. They help stabilize indoor humidity, reducing strain on heating and cooling systems. - HRVs focus solely on heat recovery, making them better for cold, dry climates or homes with high indoor humidity from activities like cooking or showering. Key Points to Consider: - Climate: ERVs are better for humid or mixed climates, while HRVs work well in colder...