How To Wire An Attic Vent Fan

Good insulation reduces fan effectiveness.

How to wire an attic vent fan.

Use the hammer and staples to secure the cable to the joists at 12 inch intervals. Pricing for attic fan installation varies depending on fan type and its location. Then cut out the circle with a reciprocating saw and mount the fan over the cutout using a drill. However the utility of attic ventilation fans is actually quite a controversial topic.

A rule of thumb. The downside of attic ventilation fans. 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. Whole house fans tend to have higher overall costs than attic ventilation fans.

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. Of insulation from the end. 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. An attic fan works by exchanging the hot air in your attic space for fresh air pulled through the vents.

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. Run nm cable from the attic fan thermostat to the attic light. Use wire nuts to connect.

Attach a box connector to the cable and feed the wires into the thermostat box. On average labor costs run between 100 300 and the fan itself may range from as little as 50 to more than 500. This will help to avoid premature damage to the shingles or mold building up in moist hot. Leave enough cable at each end to work with.

1 square foot of intake for every 300 cfm of ventilator. 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.