What to Know About Whole House Fan Winterized Inserts

Whole house fans are a low-cost, energy-efficient way to cool and ventilate your home. They’re also the best and most effective way to ventilate your home. By supplementing or replacing your air conditioner use with a whole house fan, you can drastically reduce your energy consumption and save tons of money on your energy bill during the summer.

But what about during the winter? Will heat from your home leach out and drive your heating bill up? That’s why winterized inserts for whole house fans were invented. Let’s dive into these helpful and money-saving whole house fan accessories.

What Are Whole House Fan Winterized Inserts?
Whole house fans are generally installed in the ceiling that separates the attic from the rest of your home. If you’ve ever been up in your attic during the hot summer (especially when you haven’t been running your whole house fan), you can’t help but notice the blistering heat. While the attic will trap some heat during the winter (especially if it’s not ventilated), it will be colder than the rest of your home.

This is because unfinished attics are generally sealed off from the rest of the home, so there’s no reason to heat them. Plus, there may be attic vents that allow cold air to circulate.

Whole house fans connect the house to your attic, so cold air can get into your house and that precious heat can escape into the attic. Not with a winterized insert.

Winterized inserts insulate your whole house fan to prevent heat from escaping your home through the whole house fan.

How Do Whole House Fan Winterized Inserts Work?
Winterized inserts are installed behind the grill of the whole house fan to insulate and seal it to reduce drafts and prevent heat from escaping. They can also reduce the sound of drafts and wind coming through the attic.

When the warm weather returns, you can easily remove the insert and save it for the next winter.

How to Install a Winterized Insert
While you can create your own winterized insert at home, we recommend purchasing a winterized insert. These will be better insulated and fitted to your exact model, ensuring they are effective at insulating your home and preventing cold drafts from getting into your house.

On our accessories page, you’ll be able to find winterized inserts for all of our whole house fan models, including the 3100 model and 2250 model winterized inserts.

To install it, all you need to do is insert it behind the grill and you’re ready for winter.