How To Wire An Attic Vent Fan

Determine the attic s square footage.

How to wire an attic vent fan.

The downside of attic ventilation fans. Bring the cable through one of the studs supporting the fan and strip about 8 in. 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. On average labor costs run between 100 300 and the fan itself may range from as little as 50 to more than 500.

Attach a box connector to the cable and feed the wires into the thermostat box. Strip away about 6 inches of outer insulation and 1 2 inch of individual insulation from the end of each wire. Staple the cable within 8 inches of both the attic light box and the thermostat box. An attic with 1 500 square feet x 7 1 050 cfm make sure you also have adequate air intake typically through the undereave vents.

Of insulation from the end. Run nm cable from the attic fan thermostat to the attic light. Good insulation reduces fan effectiveness. A how to demonstration of wiring your xxfirestat or power attic vent thermostat.

Multiply this number by 7 to give you the minimum cfm required for your ventilator. Use wire nuts to connect. However the utility of attic ventilation fans is actually quite a controversial topic. This will help to avoid premature damage to the shingles or mold building up in moist hot.

Then cut out the circle with a reciprocating saw and mount the fan over the cutout using a drill. 1 square foot of intake for every 300 cfm of ventilator. Insert the end of the 12 2 wire into the fans junction box. Use the hammer and staples to secure the cable to the joists at 12 inch intervals.

To install an attic fan over a gable vent in your attic trace the body of the fan onto a piece of plywood that s wide enough to mount on the studs on each side of the vent. Leave enough cable at each end to work with. A rule of thumb.