I'm asking myself a question. What ultimately cause creosote build up in a chimney ? We often hear that flue pipe must be around 400-450F to have adequate airflow to force out smoke and gases. We also often hear that unseasoned wood create more creosote build up because of water particules. But if you can maintain a flue pipe at 400-450F, is this enough to limit creosote build up no matter if your wood is properly seasoned or not ? Or unseasoned wood by itself would create more creosote, no matter your flue temp. I only burn seasoned wood (max 20-22% humidity), but I'm curious about this issue. Thanks !