Should I get an HRV or ERV for my home?

The choice between an HRV (Heat Recovery Ventilator) and ERV (Energy Recovery Ventilator) depends on your home's humidity levels and your family's comfort preferences. In Ottawa's climate, most homes benefit from an HRV, but ERVs work better in homes that tend to be too dry.

HRVs are ideal for most Ottawa homes because they exchange stale indoor air with fresh outdoor air while recovering heat energy. During our cold winters, HRVs help prevent excess humidity buildup that can lead to condensation on windows and potential mold issues. They're particularly beneficial if you have a newer, well-sealed home where natural air exchange is limited. An HRV will help maintain good indoor air quality while reducing heating costs by capturing up to 85% of the heat from outgoing air.

ERVs go one step further by also transferring moisture between incoming and outgoing air streams. This makes them better suited for homes that experience very dry indoor air during winter heating season. If your family frequently deals with dry skin, static electricity, or respiratory discomfort from low humidity, an ERV can help maintain more balanced moisture levels. However, in Ottawa's climate, ERVs are less commonly needed since most homes naturally retain adequate humidity during winter.

Installation costs in Ottawa typically range from $2,500 to $4,500 for either system, depending on your home's ductwork and complexity. Both systems require professional installation and connection to your existing HVAC system. TSSA requirements may vary for electrical connections - confirm with your licensed HVAC technician.

The best choice depends on a professional assessment of your home's current humidity levels, air quality, and ventilation needs. A qualified technician can measure your indoor air quality and recommend the most suitable system for your specific situation.