I purchased a VC Dutchwest last winter and burned it for half of last season. It is a Plate Steel CDW 300007. When I go to bed I would throw about three splits in, and wait for them to catch, then turn the air control all the way down. In about a half hour to an hour later the fire is still roaring and the stove is incredibly hot. If I add more than a couple logs, the fire becomes almost out of control without any way to damper the fire. Yes, I am turning the air down and not up. I do NOT have an in line damper in the stove pipe. Should I? Seems like the stove when loaded is getting too much air and is firing away. Any idea what's wrong?