Ive been burning since around haloween because its the first year with the stove and wanted to get friendly with it...Swept the chimney on saturday with my new brush for 12 bucks and the pvc conduit rods at 1.oo each for 10 footers(Thanks to the forum).Well there was no sine creosote just stuff that looked like coffee grinds..I i got about a quart of it out and most of it was out the first time the brush went down..Is that too much?oh my chimney is about 13 feet tall