Hi all, I'm new here and am posting in hopes that someone can help me identify either the model or approximate time period of my Lopi wood stove insert. It came with our house when we purchased it this past year and we are 99% certain that there is no chimney liner, so we are looking into having one installed. In short, we're trying to decide if we should keep this insert or purchase a new one when we have the installation done. Financially, it would be better for us to keep this one, and it seems like a nice little insert, but I want to find out all I can before we make a decision and have this work done. We have had some issues with small amounts of smoke (just enough to smell/get a haze) getting in the house when we run the fan or have the fan vent (which I assume is the row of openings at the top?) open. If those are off and closed, then there is no smoke. (Having the draft open does not cause any smoke issues.) We have had the chimney swept, but they did not pull out the insert (which is how I came to learn about the laws regarding all of this and needing an liner). Thanks to the smoke issue, we have not really been using the insert since the first times when we were trying different things to fix the smoke problem. Here are a couple of photos.