A couple of questions regarding flue lining.. I have an older VC Defiant (1975) that I have h.ad piped into my fireplace flue for several years with a 5-6 ft pc of s/s flex. I want to line the whole flue with s/s flex. I've read that you are supposed to size the pipe according to the vent size off the stove. Mine is 8" and I had it reduced to 7'' and it seemed to work fine granted it was only to a 6 ft pc. I'm concerned about getting 8" flex down and through. Should I be? I had ovalized the 7" pc through the damper opening and this seemed to work.
Lining 12 x 12 flue
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quotejso
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you should be able to buy more flex and attatch it to the piece that is ovalized. If it worked how you had it it can only get better.
The older Defiant wants 8". 8" insulated flex should make a nice difference in both the draft and cleaner flue.
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