Timothy Heutz, right, shows Todd Belaire the boilers for the new wood pellet heating system they lifted into place with a crane Thursday at Gardiner City Hall. The boilers, installed by Heutz Premium Pellet Systems, are expected to replace the 40-year-old heating system that burns about 7,000 gallons of heating oil at the fire station and city headquarters. The city received a $61,000 grant for the $122,000 project as part of the American Reinvestment and Recovery Act of 2009.