The adjustable wall bracket helps secure the chimney in place when mounted to a structure or wall and can be adjusted from 2" up to 7" away from the structure to help pass gutters or small overhangs in through the wall installations.
The adjustable wall bracket provides lateral stability while maintaining a 2" clearance to combustibles. It does not support the weight of the chimney system. A wall bracket is required a minimum of every eight feet of vertical height.