Green living in Oklahoma: This family taps geothermal energy straight from the earth for it's HVAC system.
Even after several decades working with geothermal-energy pioneer James Bose at Oklahoma State University in Stillwater, Gerald McClain sounds like a kid in a candy shop as he describes his new home's geothermal heating and cooling system.
"It's exciting. It's like you're discovering something new," he says.
Thanks in part to Dr. Bose's influence, Oklahoma has become a national leader in geothermal heating and cooling (not to be confused with geothermal power generation).
Geothermal has been instituted in an increasing number of new houses, from Mr. McClain's $900,000 home among cedars in a gated community to Habitat for Humanity's 250-home Hope Crossing development in Oklahoma City.