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 a single double wall liner; the inside liner is 3" and the outside diameter is 4-3/4".