Attic Fan Blade Orientation

Likewise if the blade is angled down and the fan turns the opposite direction the reverse is true.

Attic fan blade orientation.

This is the best ceiling fan direction for air conditioning since it makes the air feel cooler than it is. The motor s nameplate depending on manufacturer may contain information on direction of blade rotation. Some whole house fans however can be reversed to spin in the opposite direction. These fans are usually wired to run in one 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. Air will blow in the other direction towards the back. Fan blade rotation is determined to be either clockwise or counterclockwise when viewed from the air discharged side. A ceiling fan should rotate counterclockwise in the summer so the blades push cooler air down in a column.

One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home.