HRV vs. ERV: Which Ventilation System is Right for You?

Modern homes are built so airtight that mechanical ventilation is mandatory to ensure indoor air quality. The two primary options are HRV (Heat Recovery Ventilator) and ERV (Energy Recovery Ventilator). In London, ON, the choice depends on your home's humidity needs.

An HRV transfers heat from the outgoing stale air to the incoming fresh air, saving energy. It is ideal for homes that tend to have high indoor humidity during the winter, as it helps exhaust excess moisture.

An ERV goes a step further by transferring both heat and moisture. This is often preferred in homes that get very dry in the winter, as it helps retain some of the indoor humidity. It also helps keep outdoor humidity out during our muggy Southwestern Ontario summers.

empcontracting.ca Inc. assesses your home's occupancy levels and lifestyle to recommend the perfect system. We ensure every installation meets NBC 9.32 standards for fresh air distribution and balanced pressure.