Dual 3" aluminum chimney
liners to top of chimney
35' long kit is included
Max 40' vertical is allowable
In cases where the chimney has been torn down, is too small for two 3" liners or is blocked, you can cut a hole
through the smoke chamber of the fireplace and install a horizontal vent termination. For use on chimneys that are located on an exterior wall of your home only.
This option provides one double wall liner; the inside liner is 3" and the outside diameter is 4-3/4".