So... I recently moved into a new home and moved my super 27 with me. It has a brick chimney with clay liner in the basement. It is in very good shape. I ordered a wall thimble to slide into the clay thimble to hook up to the dvl pipe I already had. The thimble is extremely tight. Only able to get it halfway into the thimble. Probably have to clean the remaining 3". Next thing is how to connect dvl to the thimble? What would be the piece I need to go from the dvl elbow to the thimble?