Hello, I just wanted to show off my latest investment with a few questions in mind. First let me say,You guys are a wealth of knowledge. I have enjoyed reading on the history of the fisher stove. Ive learned so much from coaly. I picked up this one last week. (Am Still recovering)The guy said it was installed in 1977. And has the Nickle plated doors.It's going in my 2 story home with 18ft of chimney. My flue is 17.5x13in.(outside) My question is, will an insulated 8in duraflex 304ss liner fit in my chimney and would that one be recommended? 8in outlet is on top of stove. I also plan on the 5/16 steel plate method coaly came up with. Also should mention since I bought new windows, I'm getting negative pressure in the house now and with my federal airtight dutchwest, I'm getting way too much smoke In the house. 
