Have you personally had success with chemical chimney cleaning?
Have you personally had success with chemical chimney cleaning? I have a friend using the Chimney cleaning logs due to his approximately 20' sheet-metal chimney pipe. I tried a chemical (granular in a hot fire) years ago but did not document the results. It has always been a yearly inspection and mechanical cleaning in my case. My case easy is easy in my opinion due to only 60" of pipe to clean (with 12-18" of the 2, 30" section extending above my 3:12 pitch roof (1 story). Plus, my pipe is 14" ID and 16" OD filled with insulation (easy to sweep with an extended wire brush). I'm sure his is a 6-8" triple wall pipes on a 12:12 pitch roof (2 stories). At least it appears not too high for him to stand and use an extended brush/ball to clean. This is their 2nd season to use the fireplace and was surprised to see what fell onto the damper (after I stressed the inspection/cleaning yearly.) loger