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"Have you ever heard of a house that doesn&amp;#039;t need a heating or cooling system? The Enertia Building System uses clever architectural designs to keep a home&amp;#039;s temperature stable. Take our quiz to see how you might be able to apply these green building tips to your current or future home."^^<http://www.w3.org/2001/XMLSchema#string>
<http://home.howstuffworks.com/home-improvement/construction/green/enertia-building-system-quiz6.htm>