What is the primary function of energy recovery ventilation systems?

The primary function of energy recovery ventilation systems is to recover and reuse exhaust air energy. These systems are designed to transfer heat and moisture between the outgoing stale air and the incoming fresh air. This process allows the system to precondition the incoming air, which reduces the energy required for heating or cooling when it enters the building.

By utilizing the energy from the exhaust air, energy recovery ventilation systems enhance overall energy efficiency. This recovery process leads to a decrease in the demand on heating and cooling systems, thereby making better use of energy resources and contributing to cost savings over time.

While improving indoor air quality is certainly a benefit of using such systems, as they help expel stale air and bring in fresh air, the defining characteristic and primary purpose remain the energy recovery and reuse aspect. This is what sets energy recovery ventilation apart from other ventilation methods. The focus on maximizing airflow efficiency and reducing energy costs are secondary outcomes derived from the effective energy recovery process.