Rutland Safe-T-Flue Chimney Cleaner, 2-Pound A couple of scoops a few times per week. Keeping your chimney clean and safe couldn't be easier than this Attacks and cleans out soot and creosote deposits from your flue Use in any wood or coal fire and keep your chimney safe and clean 2 pounds provides up to 20-30+ treatments Best for masonry flues