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Do Your Home’s Ventilating Fans Work to Your Advantage?

Published on: July 25, 2012

A well-ventilated home not only helps HVAC systems like air conditioning work more efficiently, saving you money on heating and cooling bills, but promotes better indoor air quality as well. For those who suffer from allergies, asthma and respiratory conditions, indoor air pollution is a real health concern. Indoor air is often many more times more polluted than the air outside. The right ventilating fans will improve the indoor air quality of your home, helping everyone breathe a little easier.

Allergens like mold, mildew, animal dander and bacteria thrive in still, humid air. In rooms with high humidity, dust operates like a magnet, drawing allergens. Proper ventilation is the first line of defense against airborne allergens. By reducing the humidity in the air, ventilation fans in bathrooms and kitchens help keep allergens under control.

The right attic ventilation fan can significantly reduce your air conditioning costs in the summer. Attics can reach extreme temperature on hot summer days. Because heat naturally flows from hot areas into cooler areas, even a well-insulated attic can conduct heat into living areas, making your air conditioning system work harder and driving up energy costs.

In the winter, proper ventilation helps keep down attic humidity levels, preventing moisture damage. Attic ventilation also helps prevent snow on the roof from melting into rain gutters where it can refreeze and cause ice dams that can lead to roof damage.

Attic fans work in consort with attic vents, creating a draft that continually bring outdoor air inside and exhausts it back out again. While conventional fans are effective, Energy Recovery Ventilation (ERV) products take home and attic ventilation to a new level of energy efficiency. These HVAC systems both bring outside air into the home and exhaust indoor air to the outside. At the same time, they use some of the energy generated in the exchange of air to precondition the incoming air. Some models help dehumidify the air as well.

ERV ventilators can be installed as stand-alone products in rooms with high humidity such as bathrooms and kitchens. ERV whole-home systems are becoming even more popular. Whole-home ERV systems balance your home’s indoor/outdoor air exchange, providing preconditioned and filtered warm or cool air to every room in your home. In the summer, because these HVAC systems partially cool outside air before distribution without wasting energy, they are particularly useful in lowering air conditioning operating costs.

By taking advantage of new ventilation products and technologies available in modern HVAC systems, you can enjoy cleaner, healthier indoor air without sacrificing comfort, and you’ll enjoy lower energy bills too.