Hello everyone. Wonderful site for information. I have a napoleon wood stove insert. Exceptional stove. My question is this is our second winter using the stove. I have a full liner from the stove to the top of the center chimney. I had the flue cleaned this fall. They did vacuum out the stove but did not remove the bricks and vacuum. Is that necessary? Should we remove all the bricks and vacuum out? Will this help the stove perform better? When should this be done and how often? Any info would be very grateful.