Ord loads a hopper on the back of his coal-burning stove. He says 400 pounds of coal will keep his 2,400-square-foot house between 70 and 72 degrees for a couple of weeks in the winter.

Ord loads a hopper on the back of his coal-burning stove. He says 400 pounds of coal will keep his 2,400-square-foot house between 70 and 72 degrees for a couple of weeks in the winter.

Ord loads a hopper on the back of his coal-burning stove. He says 400 pounds of coal will keep his 2,400-square-foot house between 70 and 72 degrees for a couple of weeks in the winter.

Ord loads a hopper on the back of his coal-burning stove. He says 400 pounds of coal will keep his 2,400-square-foot house between 70 and 72 degrees for a couple of weeks in the winter.