These 125mm flue liner clamp plates are used to seal off the top of the flue stack and provide support for the liner. These plates are made from aluminium and they come in two pieces for installation.
Application
When installing the clamp plate, make sure to secure the top of the liner at the top of the flue stack by using the two-piece plates and the bolts provided. You will need to cut the liner at the top of the chimney stack and then slide the two plates around the flue liner at the end and secure it in place with the bolts provided. The plate should now be laying on top of the chimney stack.
For those that are also installing a chimney cowl or terminal, ensure that you leave approximately 4 inches of flue liner above the plate so you can secure your terminal to the liner.