How To Use An Attic Fan Effectively

Determine where the best intake locations are.

How to use an attic fan effectively.

Ideally this will lower the high temperatures that have built up in your attic. An attic fan can be used to cool down your living space any time the air outside is cooler than the air in your home. This air is then exhausted through the fan to the outside. Attic fans exhaust hot air from your attic to the outside.

Some can have manual switches while others use a thermostat to turn them on and off automatically. Calculate the square footage of your home. Open your windows before you turn on the fan. A whole house fan is usually installed on the attic floor near the center of your house.

Fresh air is pulled in from your soffits and or roof vent creating a draft through your attic. Multiply the number of square feet of the floor area you want to cool by the room height from floor to. In the late evening or early morning the fan is turned on to exhaust hot air from the house. Calculate the appropriate size of a whole house fan needed to properly ventilate your home.

Cooler outdoor air enters through open windows lowering the indoor temperature. Attic ventilation fans help cool air your attic by pushing out the stifling hot air from inside the attic and bringing in cool air from outside. An attic fan pulls air in through open windows and doors while pushing hot air. This prevents hot air from seeping into your home and driving up the temperature in the living space which reduces the load on your air conditioner.

The main work of an attic fan is to regulate the heat level of the attic by removing hot air out of the attic and pushing it outside providing needed ventilation. How does an attic fan work.