A whole house fan was designed to cool the home in an efficient and simple way during seasons that become unbearable but then cool off at night. This is, undoubtedly, their primary function. It is, however, not their sole purpose.
Using a whole house fan during the winter can actually prove to be largely effective in a myriad of ways.
One of the benefits of using your whole house fan in the winter is that it can prevent ice damming. Ice damming occurs when snow melts off of your roof. This water accumulates and creates literal dams of ice. These dams can be damaging to your roof and cause blockages in your gutters. A whole house fan can stop this from occurring and therefore save you money on potential repairs by keeping the attic the same temperature as outside so the ice does not melt at an accelerated rate.
Running your whole house fan also gives you better circulation of air. During the winter, most homes become stale as people do not open their windows to let new and fresh air in. This is actually quite dangerous as illness and dander can quickly build up. Allowing the home to breath brings in fresh air and expels the old. This also improves the overall air quality. Ventilation through a whole house fan is helpful in reducing indoor air pollutants, including Volatile Organic Compounds (VOC).
You can also reduce moisture build up indoors. This happens because as a heater is used in a home, the heat rises. Hot air is usually moist. When it then interacts with the cold outside of the roof, it creates a large amount of moisture. Running a fan through the attic gets rid of that moisture and the potential damage done to the roof. This is especially important because indoor moisture can lead to mold growth.
Lastly, you can use a whole house fan to vent odors. The machines can get rid of a bad smelling odor or gas in the home very quickly. When you’re are cooking foods that cause odors and expecting company at any minute, removing these odors with your whole house fan is especially beneficial. It can also be used to get rid of pet odors or any smoke from a fire or from cooking.
Whole house fans may have been created to cool homes and reduces costs of air conditioning but they have a shocking number of benefits, even during the winter months.