'Precooling' office buildings studied

Purdue University engineers say they've developed a method for "precooling" small office buildings to cut energy costs.

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<p><a href="http://www.physorg.com/news10160.html">'Precooling' office buildings studied</a></p> <p>Purdue University engineers say they've developed a method for "precooling" small office buildings to cut energy costs.</p>