Whole-house fan

A whole-house fan is like a big, strong fan that can blow air through every room in your house. It's usually installed in the attic (the top part of your house) and works by pulling air in through open windows and doors, then pushing hot air out through vents or exhausts in the roof.

When it's hot outside and you want to cool down your house, you turn on the whole-house fan. The fan starts to spin and pulls in cool air from the outside. This air flows through your house and replaces the hot air that's already inside. As the hot air gets pushed out through the vents, it's replaced with new, cooler air. This makes your whole house feel cooler and more comfortable.

You can control the speed of the fan and how much air it pushes through your house. Some whole-house fans have thermostats that automatically turn them on and off when it gets too hot.

Using a whole-house fan can be a good way to save money and energy. Instead of using an air conditioner to cool your whole house, you can use the whole-house fan to circulate fresh air and keep things cool. Plus, it's cheaper to run a fan than an air conditioner.