The Mi-Flues System 11 Chimney Extension - Black is 200mm in diameter and made of stainless steel with a black finish. It is designed to increase the overall height of a clay pot lined masonry chimney when it is not possible to add masonry work due to load factors. The chimney extension helps increase the overall chimney draw by adding an additional metre to the existing height.
Adds height & draw to chimney
Quick & easy to install
Complete with fitting instructions
Easily removed for cleaning