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HRV – Heat Recovery Ventilation

Have you ever stunk up the house with food or old garbage? Been worried about CO2 buildup, or other airborne pollutants like cleaning products that get recycled through your HVAC system? What’s the answer? Open the windows right? But let’s say it is zero degrees outside, so opening windows isn’t the best for the utility bill. That is where a ventilator comes into play. A ventilator takes the stale air from inside your home, and exchanges it with fresh air from outside. During the exchange, the cooled or heated air that is passing out is used to cool or heat the air coming in….the energy is exchanged. Not flawless, but very energy efficient. With a ventilator, you can bring fresh air inside during the dead of a Chicago winter, or the middle of a hot Florida summer…without killing your heating and air conditioning bill.

There are two types: Heat Recovery Ventilators (HRV) and Energy Recovery Ventilators (ERV). The latter exchanges humidity as well as heating and cooling energy. So if you are using a whole home humidifier in the winter, an ERV is the better way to go, to adjust the dry air coming in.

ventilator

Ventilators sit downstream of your HVAC system. Assuming you have all indoor air quality (IAQ) products installed, when air is pulled from your home and heated or cooled, it is first taken through the Advanced Air Cleaner to filter microscopic particles like dust, pollen, toxins and viruses. The next IAQ product the air goes through, or by, is the UV Lamp. Remember, the UV Lamp isn’t doing anything to the air. It is killing mold that grows in the damp indoor coil. After the UV Lamp, the air is humidified or dehumidified, and then we hit the Ventilator.

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