My chimney sweep said we have creosote glaze, level 3 I think he called it. Money is tight and I hesitated at the $400 quote to remove it so I purchased a bottle of ACS. My question is will this product turn the creosote to flake so a simple sweep will remove it and if so how long before I call them again? Or am I just avoiding the inevitably and I just need to suck it up and pay the man to remove the glaze? Or perhaps both, use the ACS then pay the $400? I'm cheap but I'm not stupid and don't want to burn down the house.