Last season was my first and I had great results with the Buck 91 in burn times and clean glass. I knew my wood was not great as I had recently cut up fallen oaks only months before burning. This year I was ready. Wood split, stacked, covered 1-2 years. I also had the flue liner swept clean. It's been warm so have only done a few burns. Mostly wanted to test the wood. I burned oak, and maple with terrible results. Thought it must have been wet wood due to the gunk build up on the glass but....
I can't keep anything burning with the damper bypass closed. Wood burns nice and hot until I close the bypass? Then it mostly goes out. I have the air turned all the way up and temps are low with partially burned wood left over. Last night was the first 30f temp so I loaded the box with my best oak. It is 15% on outside of splits and 17% inside a fresh re split (just checked). It was a hot reload and I stuffed 8 med lg splits inside. When I close the bypass the fire would die. I kept the bypass open too long in the process and had the fire way too hot. Closed the bypass and the fire died, but the stove roared and started a liner fire. Firebox flames were almost out but liner started glowing red
. I shut down all air and ran out side to check chimney. Only heavy smoke and no sparks. Eventually went back in and things were under control. I opened the air back up and smoke came out of the intakes. Smoke also came out of the bypass rod which was now coated in gummy tar? I ended up burning the load with the bypass open, and air shut. It was so hot that the cat was at 1000 and I saw secondary burning flames, with the bypass open?
Not sure if my cat is bad or clogged or liner is blocked? Cat was new last year. Bought a cheaper brilo pad looking combustor online. No problems last year? Can't even burn this year?
Any thoughts? Thanks
I can't keep anything burning with the damper bypass closed. Wood burns nice and hot until I close the bypass? Then it mostly goes out. I have the air turned all the way up and temps are low with partially burned wood left over. Last night was the first 30f temp so I loaded the box with my best oak. It is 15% on outside of splits and 17% inside a fresh re split (just checked). It was a hot reload and I stuffed 8 med lg splits inside. When I close the bypass the fire would die. I kept the bypass open too long in the process and had the fire way too hot. Closed the bypass and the fire died, but the stove roared and started a liner fire. Firebox flames were almost out but liner started glowing red

Not sure if my cat is bad or clogged or liner is blocked? Cat was new last year. Bought a cheaper brilo pad looking combustor online. No problems last year? Can't even burn this year?
Any thoughts? Thanks