WHAT AN ENERGY RECOVERY VENTILATOR (ERV) IS USED FOR.
Ventilation through open windows is not always ideal, especially during the hot and humid months when you are trying to keep your premises cool. The use of a energy efficient ventilation system with energy recovery will help to maintain a fresh ambiance and help to recover up to 90% of the cool created inside.
With an ever increasing demand for building air tightness for improved energy efficiency, effective ventilation is also necessary for improving indoor air quality and the protection of building structures from fungal growth. The ventilation system helps to reduce the impact of humidity and the accumulation of pollutants by exchanging inside air with fresh air from outside.
During the heating season, heat is transferred from the cool indoor exhaust air into the warm outdoor supply air inside the ERV.
If you are air conditioning the indoor air, heat is transferred from the warm/hot outdoor supply air into the cool exhaust indoor air inside the heat exchanger, thus reducing the temperature of the fresh air coming in. The heat exchanger not only transfers this heat but transfers some of the moisture in the more humid supply air into the less humid exhaust air, thus reducing the humidity of the fresh air coming in. This heat/energy transfer means that your house cooling system uses less energy when compared to any other form of ventilation. This transfer of heat or energy is accomplished with very little or no mixing of the 2 air streams, meaning the pollutants are exhausted and the heat/energy is recovered.
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