Should Cool Air be Coming from a Heat Recovery Ventilator

Close up of a Heat Recovery Ventillator (HRV)Marlyse reads my column in the Ottawa Citizen, and she’s concerned about the cool air coming in from her newly installed heat recovery ventilator. The fact is, it’s normal for the air coming out of an HRV to feel cool. HRVs capture the majority of heat from stale, outgoing air and transfer it to the incoming air stream. That said, this transfer isn’t perfect, and that’s why incoming air is cool.

All this is still better than opening a window or running an exhaust fan, which are the only other options for improving indoor air quality and lowering humidity in winter.