
Winterizing your whole house fan is really important in making sure that you're keeping the heat inside your house in the winter time, as well as reducing unwanted noise caused by windy, cold winter days.
Installation is super easy! All you'll need is a step ladder, a winter insert, and the grate-puller that comes with your fan.
To install your insulated whole house fan insert follow these simple steps:
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Place your step ladder directly underneath your fan grate, and make sure you have stable footing on the ladder.
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Use one hand to support one side of the grate. With the other hand, use your grate puller to gently tug the grate away from the damper box.
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Place the winter insert snuggly inside the grate — it should be a perfect fit!
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Snap the grate back into place.
That's it! Your whole house fan insulated winter insert is ready to keep the warm air in and the cold air out all winter long.
IMPORTANT: DO NOT RUN YOUR FAN WITH INSERT IN PLACE. Your fan is going to be completely sealed when the insert is in place — running your fan with the insert in place can damage your fan motor.
Colorado Home Services
Fan Winterization Solutions
Whole House Fan Winterization

Whole House Fan Winter Inserts
Whole House Fan winter inserts from Colorado Home Services are the fastest and most effective solution to winterize your QuietCool Whole House Fan. Custom made in our warehouse from insulated dense foam and radiant barrier, whole house fan winter inserts are easy-to-install and suited for any size QuietCool Classic, EnergySaver, Trident and Stealth Pro whole house fan.
Note: Winter inserts must be removed before using your fan. The air-seal created by the insert blocks airflow and can damage your fan if not removed before use.
Custom-fit for your QuietCool Whole House Fan
Easily installed in seconds - no tools required
Prevent thermal transfer for more energy savings
Reduce noise during windy conditions
Winterizing Your Whole House Fan
Winterizing your whole house fan is easier than ever! Our insulated winter inserts prevent heat loss and reduce noise from pressure changes in windy conditions. Whole house fan insulated winter inserts are designed to create an airtight seal around your whole house fan without the need to climb into the attic.
Trusted Whole House Fan Winterization in Colorado
Colorado Home Services is locally owned, veteran-owned, and family-operated, and has helped homeowners across the Front Range improve comfort, efficiency, and overall home performance since 2003.
Proudly serving Denver, Colorado Springs, Fort Collins, and surrounding Front Range communities.
Call (303) 986-5764 or
contact us today to get started.
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