Greetings! I had the chimney cleaned 4 weeks ago by our stove dealer and a couple of days ago I did a really small break-in fire. Last night was 1st "real" fire and I noticed the baffle is broken. Obviously it was caused by the cleaning because there is a large dent near the crack and the dent is pushed downwards as though the brush hit the top. So I'll be calling the dealer tomorrow for a free fix. Meanwhile, the outside temps are in the low 40's and will probably be in the 30's tonight. I realize that the baffle makes the stove more efficient, but is it o.k. to operate it with the cracked baffle?