well he did a bad job because he didn't seal the top plate to the top of the chimney he didn't back up the clamp with rivets he didn't insulate and didn't put in a blockoff plate as well as pulling it to tight or cutting it to short or what ever he did wrong there. In my mind all that makes it a bad install.
![[Hearth.com] Pro install screw up or common problem [Hearth.com] Pro install screw up or common problem](https://www.hearth.com/talk/data/attachments/156/156968-7f771af41978093688f2fbb39ac292f0.jpg?hash=Ep5C-Nd4dJ)
![[Hearth.com] Pro install screw up or common problem [Hearth.com] Pro install screw up or common problem](https://www.hearth.com/talk/data/attachments/156/156969-836f43c6588f2d9d94f92160330ce95a.jpg?hash=ldTNjlgOF9)