Attic Fan Breaker Size

When working with electricity always.

Attic fan breaker size.

To determine the size of your attic multiply the width by the length of the attic floor in feet. Before running out to buy an attic fan take some time to check the existing attic ventilation on your house. First is the thermostat calling for the fan when the breaker is turned on. How to size a whole house attic fan.

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. I assume we are talking about an a c airhandler and not a whole house fan or attic vent fan. You also want a fan that s appropriate for the square footage of your attic space by checking the manufacturer s specifications. An attic fan is an electric exhaust fan that mounts in your home s attic.

Example 20 wide by 50 long attic. The inexpensive fans can help reduce heating and cooling costs by evacuating superheated or cold. While the type and number of vents will vary depending on the specific roof design house location and amount of direct sun a minimum venting system should have 1 sq. 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.

20 x 50 1 000 sq. A whole house fan sucks warm house. Test the wires to ensure the power is off. A whole house attic fan is installed in the ceiling between the top floor and the attic as a supplement to air conditioning.