Greetings! - newbie/first post. I recently purchased a townhome built in 1981. A local chimney sweep did an inspection and reported rusted out holes in the fireplace around the damper and recommended it not be used. Since I'm very illiterate on the subject I thought I'd come here and get some advice from some more knowledgeable and trustworthy folks. Attached is a pdf with pics from his report. He also said that this issue is unrepairable and the only solution is to replace the entire fireplace insert.