Hello, I'm new here and just bought a house with a heatform fireplace and still trying to figure out how the fans are wired but I would like to put an insert in it . Forgive me for the questions I'm Judy trying to learn and firgure out what's best for my budget and whats safest. have read where some people cut out the heat exchange tubes to reline the chimney, I have also read some people putting a block off plate below the tubes and not cutting anything out and I am assuming not relining. Is this safe, if so could someone show me some pics of their set up if they left the pipes and didn't reline? Where would the soot go when brushing out the chimney if the insert and change chimney isn't directly connected?