what dissolves creosote
Sodium Chloride. Sodium chloride, also known as table salt, is a simple chemical that is easy to find. Put a little salt in the fire while it is burning. The salt combines with the water in the burning wood to create a weak acid that travels up the chimney and dissolves small amounts of creosote. This method should be used with care, however. It should not be overdone and should not be used in a metal chimney, as the acid can interact with the metal and cause corrosion.