Creosote buildup may well not seem perilous, but it surely ignites at a mere 451 degrees File, and after it starts burning, it expands like foam sealant. In less than a moment, it builds to over 2,000 degrees File and can engulf your full chimney and wipe out your home. https://outdoor-fireplace77311.ageeksblog.com/27554625/a-secret-weapon-for-propane-fireplace