I purchased a home with a 2004 model Quardrafire Isle Royale about 3 years back. I learned from this forum and purchased a stove-top thermometer and have been using the stove successfully for the last couple years. I let it heat up to 650, shut off the air and make sure the door is shut tight and it would sit there at 650 until there wasn't enough wood to maintain that temp and it would slowly fall. Sometime .. either over summer or maybe last spring it started to overfire and with all the air controls shut down would creep up over 700. I have a the optional so I turn that on to keep it from going any higher. I figured it was gaskets so I've replaced all of them this fall (ash door, around glass in doors, door gaskets, and top loader gasket but there was no change. They seem ok to me (tried the dollar bill trick and it seems tight enough). I've been getting around it by only putting in maybe 3 or 4 splits (usually 4x4 or 4x6 sized) of dry 9-10% moisture wood. I have put too much wood in and then it will really over heat but with 3 or so pieces it will often hover closer to 650 without using the blower. I'/m sure it's getting too much air, even with the air controls shut down the amount of visible flame is definitely more than I used to see when you start a good fine and then shut down the air so I assume there is a leak somewhere. So, I'm looking for hints on how to find the assumed leak or maybe if there is something I can clean or check on my Quadrafire that might be keeping the air control units open more than they should be when shut etc.Thanks in advance for any advice you can provide .. I'd love to have a fire that I don't have to watch so closely.