American Gas Lamp Works Gothic 2900R 14" Timeless Black Residential Pier Mount Aluminum Natural Gas Lamp With Single Open Flame Burner With Electric Igniter Light Assembly, Beveled Tempered Glass Panes and Fleur De Lis Finial w23.75 6 g/h Average CO 73 Napoleon W010 0370 8 1400R - RM2 - NG - TMI - G9B - F12 - NS Roof Flashing:12/12 to 24/12 btu3412

American Gas Lamp Works Gothic 2900R 14" Timeless Black Residential Pier Mount Aluminum Natural Gas Lamp With Single Open Flame Burner With Electric Igniter Light Assembly, Beveled Tempered Glass Panes and Fleur De Lis Finial w23.75 6 g h Average CO 73 Napoleon W010 0370 8 1400R RM2 NG TMI G9B F12 NS Roof Flashing:12 12 to 24 12 btu3412 6 g h Average CO 73 g h General Features Model HEI350 Ignition Type Manual Premium quality blower included (CFM) 144 CFM included Certified according to applicable standards CAN USA accredited laboratory Combustion technology Non catalytic Stainless steel secondary air system Yes Flue outlet diameter 6" Recommended chimney diameter 6" Type of chimney CAN ULC S629 you eliminate the supply of oxygen which extinguishes the flame