6" x 11" Ventis Class-A All Fuel Chimney Painted Black Cathedral Round Ceiling Support - VACCR1106 latch kit which is why it got

which is why it got high marks in published comparison tests

Firebox: 2

and a 25-foot Vortex flexible stainless steel liner

18" Ceramic Series Vent-Free Log Set - Thermostatic- Shallow Depth by Buck Stove

6" x 11" Ventis Class-A All Fuel Chimney Painted Black Cathedral Round Ceiling Support - VACCR1106 latch kit which is why it gotThis Ventis Class A ceiling support is UL 103 HT listed and engineered to carry the full weight of a vertical chimney run through a ceiling or cathedral ceiling penetration, while maintaining the required clearance to combustibles. Heavy gauge steel construction and a clean, painted black finish make it built to last and easy to install. 430 alloy stainless steel outer casing 0. 016" thickness 2" clearance to combustibles Outer wall is 2. 5" larger