Learn more about Dan Chiras here: www.ecospeakers.com Author and green building speaker, Dan Chiras provides a concise explanation of the importance of orienting a building properly relative to the sun for heat during the winter and cooling in the summer. Chiras has written more than 240 articles and 21 books. His most recent books are “The New Ecological Home: Complete Guide to Green Building Options” (Chelsea Green Publishing), and “EcoKids: Raising Children Who Care for the Earth” (New Society Publishers). More energy sources and uses related speakers here: www.ecospeakers.com

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