How Do Attic Fans Worl

Some can have manual switches while others use a thermostat to turn them on and off automatically.

How do attic fans worl.

This air is then exhausted through the fan to the outside. There are several different types of attic ventilation systems but most of them feature small vents soffit and gable which draw in cool air along with a primary fan that pushes air outside. In the late evening or early morning the fan is turned on to exhaust hot air from the house. Fresh air is pulled in from your soffits and or roof vent creating a draft through your attic.

An attic fan works by drawing in cool air to the attic space that pushes out the hot air through vents. The attic fans are fitted with thermostats that will switch on and off the fan depending on the homeowner s preference. A whole house fan is usually installed on the attic floor near the center of your house. Ideally this will lower the high temperatures that have built up in your attic.

Attic fans work on the principle of pushing out the attic s hot air and replacing it with cool air from outside. Cooler outdoor air enters through open windows lowering the indoor temperature. In such doing the attic fan will reduce the temperature in the attic space that in turn cools down the whole house. How does an attic fan work.

Attic fans are intended to cool hot attics by drawing in cooler outside air from attic vents soffit and gable and pushing hot air to the outside. Open your windows before you turn on the fan. However if your attic has blocked soffit vents and is not well sealed from the rest of the house attic fans will suck cool conditioned air up out of the house and into the attic. 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.

The problem with this design as argued by energy professionals is that attic fans also pull the conditioned air from your home into the attic. 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. 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.