We all know the importance of washing hands and disinfecting surfaces, but your HVAC system also plays a critical role in maintaining a healthy home. Indoor Air Quality (IAQ) has never been more important, especially as modern homes are built tighter than ever, trapping contaminants and allowing airborne particles to linger longer indoors.
Ventilation is one of the oldest and most effective ways to improve IAQ. Simply put, it dilutes indoor air with fresh outdoor air. However, it is not as simple as opening a window. Outdoor air can introduce pollutants like pollen, smoke, and humidity, and it can increase heating and cooling costs. On the other hand, too little ventilation allows indoor pollutants such as carbon dioxide to build up. The key is balance.
That balance is defined by ASHRAE standard 62.2 for residential homes, which help determine how much ventilation a building needs based on size, occupancy, climate, and construction. While many older homes rely on natural air leakage, newer renovated homes are much tighter and often require ventilation to maintain healthy air.
Mechanical ventilation systems bring in controlled amounts of fresh air using ducts and fans, often integrated directly with the HVAC system. In central air systems, this can be as simple as adding a filtered outside air return with proper dampers and controls. More advanced options, such as Energy Recovery Ventilators (ERVs) or Heat Recovery Ventilators (HRVs), improve efficiency by transferring heat and, in the case of ERVs, humidity between incoming and outgoing air, helping reduce energy costs.
The Unico System is designed to make this integration simple and effective. Its variable speed blower includes built-in control features that can automatically operate the blower, activate an ERV or HRV, or open a ventilation damper as needed. This flexibility allows ventilation to be programmed to meet the specific needs of the home while complying with ASHRAE 62.2 residential ventilation standards.
Integrating ventilation into your HVAC system is one of the most cost-effective ways to improve IAQ while maintaining comfort and efficiency. With proper design, professional guidance, and adherence to ASHRAE standards, homeowners can achieve cleaner air, balanced ventilation, and energy smart performance supporting a healthier indoor environment.
