How To Wire An Attic Vent Fan

This will help to avoid premature damage to the shingles or mold building up in moist hot.

How to wire an attic vent fan.

Multiply this number by 7 to give you the minimum cfm required for your ventilator. 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. 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.

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. Determine the attic s square footage. 1 square foot of intake for every 300 cfm of ventilator. Attach a box connector to the cable and feed the wires into the thermostat box.

A rule of thumb. Insert the end of the 12 2 wire into the fans junction box. Whole house fans tend to have higher overall costs than attic ventilation fans. Use wire nuts to connect.

Run nm cable from the attic fan thermostat to the attic light. Bring the cable through one of the studs supporting the fan and strip about 8 in. Pricing for attic fan installation varies depending on fan type and its location. Staple the cable within 8 inches of both the attic light box and the thermostat box.

However the utility of attic ventilation fans is actually quite a controversial topic. Use the hammer and staples to secure the cable to the joists at 12 inch intervals. Then cut out the circle with a reciprocating saw and mount the fan over the cutout using a drill. Of insulation from the end.

Strip away about 6 inches of outer insulation and 1 2 inch of individual insulation from the end of each wire. A how to demonstration of wiring your xxfirestat or power attic vent thermostat. An attic fan works by exchanging the hot air in your attic space for fresh air pulled through the vents.