Did a cleaning today to be on the same side. This is about a month of 24/7 burning. The bigger flakes came from the baffles. Assuming they fell from the chimney cap where there were also some similar size flakes. It's the 2nd year burning. The cap had some discoloration last year but has a bit more now. The circled area is usually where I get my readings and under the vent at the flue collar. Occasionally I see 430-460 at these places with the IR gun about a foot away. Is this to hot? My wood this year is significantly better and I have been getting much longer burns. My chimney is only 13.5 feet.