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Whole-House Fans for Cooling

Whole-House Fans for Cooling

A whole-house fan is an effective means of cooling a house, and is far less expensive to run than an air conditioner. Whole-house fans can reduce indoor temperatures by 3 to 8 degrees F, depending on the outside temperature.

Find out how a whole-house fan can save you money by cutting your air conditioner use 15 to 55 percent.

Through prudent use of a whole-house fan, you can cut air conditioner use by 15 to 55 percent.


  • If a well-insulated house is closed up during the heat of the day, it will heat up inside slowly like an insulated ice cube. In the evening when it’s cooler outside than inside, and you open the windows, a whole-house fan blows
    the hot air out of the house.
  • The fan should be centrally located so that it draws air from all rooms in the house. Be sure your attic has sufficient ventilation to get rid of the hot air.
  • To ensure a safe installation the fan must have an automatic shutoff in case of fire.
  • Ceiling, paddle, and portable fans produce air motion across your skin that increases evaporative cooling.
  • A moderate breeze of one or two miles an hour can extend your comfort range by several degrees and will save energy by allowing you to set your air conditioner’s thermostat higher or eliminate the need for air-conditioning altogether.
  • Less frequent use of air conditioning by setting the thermostat higher will greatly cut cooling bills.

Read more: Home, Reduce, Recycle & Reuse

Excerpted from the Real Goods Solar Living Source Book,edited by Doug Pratt and executive editor John Schaeffer.Copyright (c) 1999, Real Goods. Reprinted by permsision of Chelsea Green Publishing Company and Real Goods.
Excerpted from Real Goods Solar Living Source Book,edited by Doug Pratt and executive editor John Schaeffer.

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Annie B. Bond

Annie is a renowned expert in non-toxic and green living. She was named one of the top 20 environmental leaders by Body and Soul Magazine and "the foremost expert on green living." - Body & Soul Magazine, 2009. Learn Annie's latest eco-friendly news on anniebbond.com, a website dedicated to healthy and green living.

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The Real Goods Solar Living Sourcebook

The Sourcebook remains the best introduction to energy-efficient technology for common folks.
-Whole Earth Review

From novices to pros, this book explains renewable energy and efficient building practices. Great reference to start design and cost estimation from each section. One of the best features of this book is the addition of the National Electric Code for RE systems. It's possible to pick a building material to build a house, design a solar electric system, decide on appliances, determine the use of a greywater system, and more from 562 pages. No more looking up pages on the net!buy now

24 comments

+ add your own
5:23PM PDT on Mar 16, 2013

noted

6:25AM PDT on Jun 28, 2012

great idea.........

1:54AM PDT on Jun 22, 2012

Great article thanks for sharing

5:59AM PDT on Jun 6, 2012

thanks.

1:56AM PST on Jan 25, 2012

Thanks.

6:50AM PDT on Aug 19, 2011

Thank you

1:33PM PDT on Jul 24, 2011

Thanx for the info!

7:03PM PDT on Jul 21, 2011

Thanks for posting.

7:25PM PDT on Jul 13, 2011

Thanks

12:48AM PDT on Mar 25, 2011

Thank you.

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Disclaimer: The views expressed above are solely those of the author and may not reflect those of
Care2, Inc., its employees or advertisers.

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Here I am over midnight so maybe I should try some of this to get sleepy...

Thanks for the article!!

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