SaverSystems Professional Strength Cre-Away - 25 Pound Container

Yes. Professional Strength Cre-Away is effective on all types of creosote, including the hard, glazed buildup known as stage 3 creosote. It does not dissolve creosote on its own. Instead, it changes the glazed creosote into a more brittle state so a chimney sweep can remove it more completely. This professional formula contains 50% more magnesium catalyst than standard Cre-Away, with an average reaction time of 1 to 2 weeks. According to SaverSystems, it is applied inside the chimney, not in the firebox, and is activated by burning fires in the appliance. Plan to treat the chimney, have regular fires, and then have it swept. Chimneys with heavy buildup may need repeat treatments. If you prefer to apply it with compressed air, the SaverSystems Professional Strength Cre-Away Applicator is designed for this product. Because stage 3 creosote is a serious chimney fire risk, we also recommend having a certified chimney professional inspect the flue. You can find one near you at https://www.nficertified.org/public/. After sweeping, vacuum all material dislodged by Cre-Away from the vent system.