Whole House Fans

A whole house fan is a large-diameter fan installed in the ceiling of your attic or roof. When turned on, it pulls cool air from open windows into your home and exhausts hot, stale air out through the attic vents. This creates a refreshing breeze and lowers the indoor temperature quickly and effectively.

How Do Whole House Fans Work?

Whole house fans operate on a basic principle: air exchange. By drawing in cooler outdoor air and pushing out hotter indoor air, they create a natural ventilation system that cools your entire home. This process works best at night or early morning when outdoor temperatures are cooler.

Benefits of Whole House Fans

Energy Savings

Whole house fans use significantly less energy than air conditioners, reducing your cooling costs by up to 90%. They are an excellent option for mild climates or as a supplement to your existing AC system.

Improved Air Quality

Whole house fans promote proper attic ventilation, preventing moisture buildup and the growth of mold and mildew. This can improve indoor air quality and create a healthier living environment.

Lower Environmental Impact

Whole house fans have a much lower carbon footprint than air conditioners, making them a more eco-friendly cooling solution.

Quick Cooling

Whole house fans can cool your home down quickly, especially when combined with open windows on opposite sides of the house. This is ideal for providing a refreshing burst of cool air on hot evenings.

Affordable Installation

Compared to air conditioners, whole house fans are relatively inexpensive to install. They also require minimal maintenance, making them a cost-effective cooling option in the long run.

Benefits Of A Whole-house Fan Installation

There are many benefits of using a whole-house fan in your home. Below are a few reasons why you should let us install an attic fan today:

Call Now

Call 720-327-4525 to schedule your whole-house fan installation with Positively Charged Electric. We’ll have your attic fan installed on your Aurora, Littleton, Elizabeth, Parker or Centennial, CO property in no time.

Types of Whole House Fans


These fans are simpler and more affordable, with the motor directly connected to the fan blade. They are typically quieter than belt-driven fans but may not be as powerful.


These fans use a belt to transfer power from the motor to the fan blade, allowing for more powerful airflow. However, they can be noisier than direct-drive fans and require occasional belt maintenance.

ceiling fan installation Aurora CO
ceiling fan installation near Aurora CO

Choosing the Right Whole House Fan

The right whole house fan for your home will depend on several factors, including:

Home Size

The fan’s CFM (cubic feet per minute) rating should match the size of your home. A general rule of thumb is to choose a fan that can exchange the air in your home 40-60 times per hour.


Whole house fans work best in dry climates with cool nights. In humid climates, they may not be as effective due to the high moisture content in the air.

Attic Ventilation:

Adequate attic ventilation is crucial for proper fan operation. Ensure your attic has sufficient vents to allow the hot air to escape.

Noise Level

Consider the noise level of the fan, especially if you plan to run it at night. Choose a quieter model if noise is a concern.

Installation and Maintenance

Whole house fan installation is generally straightforward and can be done by a qualified electrician or handy homeowner. It’s important to ensure proper attic ventilation, install a thermostat control for automatic operation, and choose the right location for the fan. Maintenance is minimal, typically involving occasional cleaning and lubricating the fan motor.

Additional Considerations


Install a timer or thermostat control to prevent the fan from running when windows are closed.

Light Leaks

Seal any light leaks around the fan housing to prevent unwanted light from entering your attic.


In some cases, ducting may be necessary to direct airflow to specific areas of your home.

Reach out to Positively Charged Electric

Contact Positively Charged Electric at 720-327-4525 to speak with a licensed electrician based in Centennial, Colorado, and serving the greater Denver metro area and the surrounding area!