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from Popular Mechanics

Installing An Attic Fan

Installing an attic fan. Fans can cost about $40, and an automatic shutter can be $30. Need to adapt vents to type of roof design, house location and direct sun. 1 sq foot vent area for every 300 sq feet of attic area.

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from The Family Handyman

Choosing a Whole House Fan

Choosing a Whole House Fan: A time-tested cooling solution that uses 90% less energy than your air conditioner http://www.familyhandyman.com/heating-cooling/choosing-a-whole-house-fan/view-all

from Popular Mechanics

Installing An Attic Fan

Attic Fan - it was wonderful to open the front and back doors and turn on the attic fan!

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Solar Powered Attic Fans are Cost Effective for Keeping Your Attic Cool and Dry - http://www.homeadditionplus.com/attic_info/Solar_Powered_Attic_Fans.htm

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from ~Taylor-Made Homestead~

Environmentally-Friendly Cooling: Whole-House Fan

Our whole-house attic fan cools the house quickly w/o using an expensive air conditioner pulling cooler air from outside throughout the house #TaylorMadeRanch