What is a key feature of a heat recovery ventilator (HRV)?

A heat recovery ventilator (HRV) is specifically designed to improve indoor air quality while efficiently using energy. One of its key features is its ability to recover heat from the exhausted indoor air and transfer it to the incoming fresh air. This process allows for the maintenance of energy efficiency, as it reduces the demand on the heating system during colder months, helping to lower energy costs.

The HRV operates using a heat exchanger that separates the incoming and outgoing air streams. As stale indoor air is expelled, it transfers its heat to the incoming fresh air, warming it before it enters the living space. This makes HRVs particularly valuable in climates where the difference between indoor and outdoor temperatures is significant, ensuring comfort without the loss of energy.

While filtering allergens or controlling humidity levels can be functions of other air quality systems, they are not the primary feature or purpose of an HRV. Its main advantage lies in heat recovery, making it an essential component in energy-efficient HVAC systems.