How To Wire An Attic Vent Fan

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.

How to wire an attic vent fan.

Staple the cable within 8 inches of both the attic light box and the thermostat box. Whole house fans tend to have higher overall costs than attic ventilation fans. Use wire nuts to connect. Insert the end of the 12 2 wire into the fans junction box.

Of insulation from the end. The downside of attic ventilation fans. 1 square foot of intake for every 300 cfm of ventilator. This will help to avoid premature damage to the shingles or mold building up in moist hot.

Strip away about 6 inches of outer insulation and 1 2 inch of individual insulation from the end of each wire. 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. Multiply this number by 7 to give you the minimum cfm required for your ventilator. Then cut out the circle with a reciprocating saw and mount the fan over the cutout using a drill.

Leave enough cable at each end to work with. A how to demonstration of wiring your xxfirestat or power attic vent thermostat. Attach a box connector to the cable and feed the wires into the thermostat box. Pricing for attic fan installation varies depending on fan type and its location.

Use the hammer and staples to secure the cable to the joists at 12 inch intervals. Bring the cable through one of the studs supporting the fan and strip about 8 in. An attic fan works by exchanging the hot air in your attic space for fresh air pulled through the vents. Run nm cable from the attic fan thermostat to the attic light.

Determine the attic s square footage. However the utility of attic ventilation fans is actually quite a controversial topic. On average labor costs run between 100 300 and the fan itself may range from as little as 50 to more than 500.