Claremont — A wood-fired furnace is being blamed for a fire that spread into the ceiling of a shop building at the MacGlaflin Farm on Sugar River Drive this morning.

The Claremont Fire Department responded to a call from the dairy farm around 9:40 a.m. and found light smoke on the exterior of the barn building. The fire was isolated to the interior ceiling, but an extensive overhaul, including removing ceiling panels, was needed to find and put out deep-seated embers, Claremont Fire Chief Bryan Burr said in a news release.

The fire was caused by “combustibles and flammables stored too close to a wood-fired furnace which was being used to provide heat to the building,” the news release said.

One firefighter was sent to Valley Regional Hospital for evaluation of a minor injury, the release said.

Ed MacGlaflin said in a brief phone interview that the farm’s cows are kept in a separate barn and there was no affect on dairy operations.