Yup, gotta pull the pipe.

So i did my first good clean down other than knocking the crud off the chimney cap. I ran my sooteater up from the stove till i hit the cap. I had about 1/2" of stuff on the floor of the stove after this. Next i pulled the pipe and looked up, nice and clean, all of the junk wass just loose fluffy ash. Next I look down the flue collar and see what is in the picture below. I slid my tape measure in from the side till it hit the deepest stuff, almost 2". There was also a huge amount resting against the combustor and a lot on top of the bypass plate.

This thread harkens back to a closed thread that got ugly so lets not go there but if i were paying someone to do this job i would expect the pipe get pulled and this get cleaned up. Total volume of soot was about a half gallon, most of the worst was the single wall pipe just above the stove and at the top where the class a is outside of the house envelope.

I also tuned up the bypass damper tension and loading door tension as we are 1/2 way through the first season.

After being shut down all day the house got quite cold so shes down there running like a freight train now

The deep stuff I measured, yea probably but the stuff between the cat and bypass, no way.

I have telescoping single wall. One section between the stove and support box. It was a cake walk.