Yes the liner has a sealed clean out. I get to it by removing the wall pass through and vacuuming junk out through the thimble that I cut through the brick chimney.
also, I always make sure my fiber boards are pushed together and pushed to the rear of the stove.
How I check moisture content: Splitwood and push my Lowe’s moisture meter prongs into the wood a fair bit. I pretty much just cut dead standing or at least deadwood. Most of it is in the 20% range when I cut it. I then split it and stack it for the following year unless it’s really wet then I’ll put it in a separate stack.
Thanks
do you measure MC on wood that's been inside the home (near 70 F) for more than 24 hrs..? If it's colder, you'll measure drier than what it really is.