How to Remove Glazed Creosote From Chimney Flues Safely

Learning how to remove glazed creosote from chimney walls is a task every wood-stove or fireplace owner eventually has to face, especially if you've been burning wood that isn't quite seasoned. If you peak up your flue and see something that looks like shiny, black ice or hardened tar, you're looking at "Stage 3" creosote. Unlike the flaky or dusty soot you can just brush away, this stuff is a stubborn, glassy nightmare that's incredibly flammable. ...

February 21, 2026 · 7 min · Toallas Tanja