To determine the size of your attic multiply the width by the length of the attic floor in feet.
Attic fan breaker size.
For a single story house this is usually the same as the square footage of the house itself plus any attached garage area.
The inexpensive fans can help reduce heating and cooling costs by evacuating superheated or cold.
I assume we are talking about an a c airhandler and not a whole house fan or attic vent fan.
A whole house attic fan is installed in the ceiling between the top floor and the attic as a supplement to air conditioning.
A whole house fan sucks warm house.
Of roof vent area for every 300 sq.
Example 20 wide by 50 long attic.
Test the wires to ensure the power is off.
An attic fan is an electric exhaust fan that mounts in your home s attic.
Meaning if nothing is telling the fan to run and the breaker trips we re looking at and for a direct short in the supply line power to the unit.
First is the thermostat calling for the fan when the breaker is turned on.
How to size a whole house attic fan.
You also want a fan that s appropriate for the square footage of your attic space by checking the manufacturer s specifications.
Turn off electricity at the main fuse box or circuit breaker box that controls the power to the fixture or the room you re working on.
When working with electricity always.
How to wire a attic fan.