BOSTON -- Record-high heating bills that are expected this winter inspired a Massachusetts school to make a big change.

NewsCenter 5's Rhondella Richardson reported Thursday that at the Groton School, many stately buildings are more than 100 years old and costly to heat. The boiler plant on the 385-acre campus is huge and largely efficient.

School To Try Wood-Pellet Heating

"This is a 19th Century building," said Hale Smith, chief financial officer.

School officials are considering a plan that would switch the school's heating source from oil to wood pellets.

"They are fed to the furnace -- the boiler -- by screws that move the chips along the conveyer belt, and it's controlled by computerized equipment," Smith said.