For all the benefits a tightly sealed home provides for low heating costs, it does have one downside. Air contaminants build indoors over the winter, but fortunately, a heat recovery ventilator (HRV) keeps air fresh and healthy without driving up heating costs.
What HRVs Do
HRVs and a related product, ERVs (energy recovery ventilators), exchange stale, stuffy interior air with fresh outdoor air without increasing energy costs measurably. They’re enclosed in metal boxes and use one fan to pull out interior air and another running at the same speed to bring in fresh air.
HRVs and ERVs use a heat exchanging core to capture the energy of the outgoing air and transfer it to the incoming air, which saves energy. ERVs also remove humidity from the incoming air, making them the preferred ventilation system for homes in the humid southern states.
Fresh air has lower levels of air pollutants and irritants, like:
- Volatile organic compounds (VOCs)
- Pet dander
- Dust mite waste
- Mold spores
Your home’s air may also have high levels of harmful gases from gas ranges and ovens, or inadequately vented combustion heating systems, dryers, or water heaters.
Over the course of the winter, these contaminants build in tightly sealed homes and degrade the indoor air quality (IAQ). A heat recovery ventilator prevents this buildup by bringing in the same amount of fresh air as it removes.
The fresh air HRVs or ERVs bring inside can be routed into the HVAC for whole-house distribution through the ductwork. They can also provide spot ventilation wherever it’s needed, like kitchens, bathrooms, or bedroom corridors. Some use timers to control how long and when they operate, with options for manual control when you need more fresh air than normal.
Both HRVs and ERVs provide the most effective and energy efficient way to ventilate your home when opening windows and doors isn’t an option. For more information, contact Cool Power, LLC, providing top-notch HVAC services for Long Island homeowners.
Our goal is to help educate our customers in Hauppauge, New York and the Long Island area about energy and home comfort issues (specific to HVAC systems). For more information about HRVs and other HVAC topics, download our free Home Comfort Guide or call us at 631-292-0629.
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