Building manager Dave Shippey gives a tutorial on how to operate the masonry heater. The unit is made from 12,000 pounds of local rock and heats 1/3 of the building. It burns at 2000 degrees with 98 percent efficiency, produces almost no smoke or ash, and uses less than 2 cords of wood in a winter. Dave describes how the stone absorbs heat from the fire and radiates it for 12-24 hours.
PS-Watch until the end for an uncut Halloween scene!