6. Soon After cleaning the flue, depending on the program We are going to clean up, the smoke chamber and smoke shelf in fireplaces which is a critical stage. We also clear the stove pipe and wall thimbles in equipment configurations. A trick we use, is using a small volume https://www.google.com/maps/d/edit?mid=1ggA53P2cCx3FGFhJ0FNkARBC631vXFc&usp=sharing