gas insert chimney liner

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  1. K

    Chimney/venting question about fireplace insert

    I have an old Heatilator EC36 wood burning fireplace that had a gas log installed. Needless to say, pretty but no heat. I bought a Heatilator NDI-30 insert. The installer is not finished yet but I am not happy. In my attic they cut off the 8 inch chimney and extended the two 3 inch flex...