Benefits of Whole House Fans

St Louis - St Charles Insulation Company.

Benefits of Whole House Fans-st-charles-mo
Benefits of Whole House Fans-st-louis-missouri

Whole House Fans Are An Excellent Choice For St Louis, MO Area

Whole house fans bring many benefits to the average home, helping to augment the insulation system already in place. These exhaust systems are installed in attics in order to better circulate air. They pull air into the attic by drawing fresh, cool air from outside. Best part is, a whole house fan uses 90 percent less energy than standard air conditioning units.

Your St. Charles insulation contractor will agree that a whole house fan will work well in tandem with sufficient insulation to result in the most comfortable and energy-efficient home.

Keep in mind that a whole house fan isn’t an attic fan. Both fans will circulate air in the attic, but the whole house fan replaces the air that’s inside the home with fresh air that comes from the outside. Attic fans will only circulate the existing air in the attic.

4 Types of House Fans

There are four types of house fans typicall used here in St Louis, MO:

  • 1. Window Mounted: These are mounted into the window frames.
  • 2. Ducted: This type involves installing an intake duct in the attic from the rafters and transferred to the fan. This allows the air to be vented out of the house, instead of via attic vents.
  • 3. Ceiling Mounted: This is the most common type and can move large amounts of air. The fans are placed in the attic between the ceiling and living space.
  • 4. Rooftop Mounted: This type is used in the event there’s no attic space in the home.

Why a Whole House Fan?

There are many reasons why you should install a whole house fan:

  • It will increase ventilation during colder months, reducing the risk of ice dams.
  • It pulls air from the outside, replacing the stale air inside your home, ridding the home of pollutants, odors, and contaminants.
  • It reduces moisture buildup in the attic that can result in mold and mildew growth. It draws in the moisture from outside, replacing the inside air with cooler and fresher air.


You don’t have to do a lot in the way of maintenance for your whole house fan. Just remove dust and particles regularly with a damp cloth. Do a deep clean once a year and monthly cleanings if you use it frequently.

Pro Tips

  • Don’t run the fan if you are using the fireplace. Because the fan pulls air inside, the flames from the fireplace could get sucked into the house.
  • Turn off your central air conditioning unit when using the whole house fan.
  • Open windows and doors when using the fan, as it may cause gas-burning appliances, like water heaters and furnaces, to backdraft carbon monoxide and exhaust fumes into the home.

Call Addict Insulation in St. Charles MO

Call our attic insulation contractors in St. Charles MO today when planning an attic conversion project for your home. Get a fee quote and schedule a consult when you contact us at 636-233-7314.

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