An attic fan is an electric exhaust fan that mounts in your home's attic. The inexpensive fans can help reduce heating and cooling costs by evacuating superheated or cold air from your home's attic area. An internal thermostat activates the fan when a set temperature is reached. Installation of an attic fan requires that you provide power to the fan motor. The easiest way to achieve this is by tapping into an existing circuit close to the fan's location. Locate an existing circuit close to the fan's location.
Remove the knockout plug with a pair of electrician's pliers from metal boxes and insert a wire connector secured with a locknut. A wire connector is a device that provides a smooth entry point where wires enter metal junction boxes.
Tighten the screws on the wire connector with a screwdriver to secure the wire to the connector. Plastic junction boxes do not require wire connectors. Use the utility knife to remove 6 inches of the outer insulation from the end of the wire. Stretch the length of wire from the circuit box to the fan's location. Secure the wire along the way by driving wire staples into studs, trusses or joists using a hammer. Remove the cover from the fans junction box using a screwdriver.
Remove the knockout plug from the side of the junction box, insert a wire connector, and secure it to the box with a locknut. Install the fans junction box cover using the screwdriver. Turn on the power to the circuit. Your fan should automatically turn on once the temperature hits a certain degree.
How to Install a Solar-Powered Attic Fan
Robert Ferguson has been a writer since Locate the Rafters and Drill the Brackets Use a hammer to locate the rafters. Run and Secure the Electrical Cable Run the electrical cable from the panel along the roofline to the end near the gable vent. Measure and Cut a Brace With the solar panel in place, the fan is ready to be installed in the attic. Connect the Wires Secure the fan to the brace using wood screws Image 1 and to the surrounding gable area.
Create a Solar Powered Shed 11 Steps. How to Replace an Exhaust Fan 6 Steps. Choose a Fan Step 2: Determine the Installation Angle Step 3: Locate the Rafters and Drill the Brackets Step 5: Run and Secure the Electrical Cable Step 6: Measure and Cut a Brace Step 7: Connect the Wires Step 8: Add the Temperature Controller.
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Both covers could be included in excessively hot or cold climates. Homeowners must remember to remove cover s before operating the fan and to replace cover s during seasons when the fan is not in use.
Label the attic-side box cover Attach labels to remind users to remove energy-saving covers:. A fan with a 34" base 30" blade will work with the dimensions shown in the diagram to the left. Continuous ridge and soffit vents are usually more than adequate.Installing a GAF Power Attic Gable Vent
Vents with insect screens may have a net free area equivalent to one-half of the total open area depending upon the size of the holes in the screen area. Insulation should be installed directly against the fan box frame. Blown-in insulation may require the sides of the fan box to be raised with baffles to prevent interface.
Avoid backdrafts Care should be taken to avoid backdrafting combustion appliances that are installed in the conditioned space. It is strongly recommended that combustion appliances NOT be installed in such a manner that they use room air for combustion.
The whole house fan is capable of pulling large quantities of air from the home and, particularly if not enough windows are open, may easily backdraft a water heater located inside a louvered closet door.
Label your switches Controls should be placed higher on walls than light switches to avoid confusion and to keep them out of the reach of small children. Labels over switches are recommended to remind users to remove any energy-saving covers and to open at least two or more windows before using.
Attic fan hook up
How to Wire an Attic Exhaust Fan
What are the benefits? Economics of operation Operating a properly sized 2. What are the drawbacks?