A Heat Recovery Ventilator is a system that exchanges the stale indoor air with fresh, outside air. During the heating season, an HRV also captures the heat from the exhausted air and transfers it to the incoming air, preheating it before it enters the home. During the summer, an HRV can reverse this process — removing some of the heat from the incoming air.
An HRV system can be installed to be used in conjunction with your current heating systems and use the established ductwork of a forced-air system.
It’s extremely important to have a balanced HRV system — ensuring the same amount of air is being expelled and brought in. An unbalanced system can result in poor airflow and poor heat recovery. It can also lead to a difference in air pressure inside and outside your home. When you have an HRV system installed, make sure the work is done by a reputable HVAC company that will take the time to balance the system.