Wet or unseasoned wood greatly increases the accumulation of creosote. The large amount of moisture from burning wet wood condenses in the chimney and adds to creosote formation as well as the acrid odor. The periodic use of a good liquid or powder chimney cleaner which is sprayed on the burning wood is essential to the wood burner. This type of product will not elminiate the need to clean your chimney or the formation of creosote, but it will make the cleaning task much easier.