Hi everyone, we dont burn often and so althoug it has been two years its probably only been 30-40 fire days since our Montpilier was last cleaned/swept. Ive waited too long and would like to do our chimney before it gets any colder but i have a bad memory of the last cleaning - taking the whole unit out to clean scratched our hearth and was a major headache. If it possible to sweep my chimney with the unit in place? I have a low slope roof with easy access and have the drill attachment cleaner but i want to be sure i get everything i knock loose out. Youtube is surprisingly unhelpful on my particular insert. Can anyone give me guidance on if i can do this and if so, how?