Coal in a #20 Army Canon potbelly.
Spring and fall I use wood. Before I retired I would start the fire before I went into the house and after supper the shop was warm. When It gets below freezing I switched to coal and ran the fire 24/7. First thing In the morning I would open the air and damper to raise the fire, on the way to work I would dump in a hod full of pea coal and closed the damper and adjust the air. When I got home it would still be burning and I would stoke it again on the way in. Tend it just before bed and have full time heat.
