Hello there, newbie to the forum and wood furnaces. I'll jump right to it. I have a recently installed crown royall 8130 wood burning furnace, with a new single wall ss chimney liner. I am also new to wood burning in general. This is my 3rd winter burning wood. I have been using a brunco fireplace insert for the past 2 years and I'm getting a handle on what it likes and keeping creosote to a minimum. But with my new furnace it seems a bit more difficult to keep temps up to where they should be. I've been using magnet thermometers on the sp and on the front of the furnace. And it generally stays around 2-300 degrees f. But I recently used something like a stick thermometer and got over 400 on the inside of the sp. So just a little confused on that, owners manual say to be between 350 and 450 on stove pipe. And then on the same issue which has alot to do with things is the barometric damper ....full of creosote on the flap and no matter where I run it can't get below .08" water column. Thank you to anyone reading this and that can help!