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Schools warm to geothermal heat.

Chattanooga Times/Free Press (Chattanooga, TN)

| August 20, 2006 | COPYRIGHT 2007 Chattanooga Times/Free Press. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)Copyright

Byline: Cliff Hightower

Aug. 20--A heating and air conditioning system that uses the earth's energy is becoming increasingly popular in Southeast Tennessee and North Georgia and may become a necessity as energy bills continue to climb, officials said.

"This is probably going to be necessary for all school systems," said Dr. Rick Denning, director of schools for Cleveland, Tenn. "They're a lot cheaper to operate."

Geothermal heat pumps are the latest trend in heating and air conditioning systems, officials said.

The systems operate by drilling long plastic pipes hundreds of feet underground. Water at a constant temperature of 58 degrees circulates through the…

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