Tax credit may boost geothermal business

When Jim Mauries' electric heat pump and gas furnace quit working for his 4,500-square-foot home, he didn't replace them with conventional models.
Instead, he opted to spend $42,000 to buy and install a geothermal system that collects or releases heat from liquid circulated through pipes deep beneath the soil. Last month, workers drilled four 300-foot wells in his backyard and inserted serpentine plastic tubing that would stretch nearly the length of seven football fields if placed end to end.


Attics to doors, tax credit has it covered