Attic Fan Airflow Direction

Whole house fans are used to blow hot air out of the attic by sucking cool air through the house up though the whole house fan and out though the gable vents in the attic.

Attic fan airflow direction.

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. The quietcool afg pro 3 0 attic gable fan can help cool and ventilate your attic for just pennies an hour. An overhead fan can create a relieving breeze or recirculate heat during cooler months if you know how to change the ceiling fan direction. Solar attic fans do just that.

However if your attic has blocked soffit vents and is not well. Most solar attic fans are surface mounted meaning that they are installed directly through the roof surface where they are most efficient. These fans are usually wired to run in one direction. During the summer an attic can be 40 to 50 hotter than the outside temperature which in turn heats up the house very quickly.

Some whole house fans however can be reversed to spin in the opposite direction. Good insulation reduces fan effectiveness. As the attic space warms up from the irradiation of the sun the ventilation port opens wider to allow the solar fan to move more warm stale air out of the attic area. With an attic fan you can cool the attic to the same temperature as it is outside greatly reducing the house from heating as quickly.

The afg pro 3 0 is possibly the most powerful residential attic fan on the market today. Never cover attic soffit vents with insulation use rafter vents and soffit vents to maintain airflow. However the utility of attic ventilation fans is actually quite a controversial topic. Attic ventilation fans whether hard wired or powered by their own solar panels seem like a low cost and effective way to help keep your house cool.

The downside of attic ventilation fans.