This is the metal chimney top and adapter kit you need

810-6800-0

Tightly stitched edges prevent curling and cracking under high temperatures

it does a great job at blowing the warm air into the room

Crossover burner 15-1/4"(38

Fire Pit Glass Wind Guard 12.4"x 4" Round Fire Pit Screen Clear Tempered Glass Flame Shield for Outdoor Fire Column Rock Wool This is the metal chimneyStrong PracticabilityThe dimension of Round Wind Guard Fence is 12. 4 x 4". High quality MaterialThis Glass Wind Guard uses Clear Tempered Glass and Stainless Steel Fixator. To a certain extent, these materials elongate the working life Safety BarrierGuard flames on windy days. Keep Family, Friends, and Children Safe from Flames Easy AssemblyGlass Flame Screen includes 1 pieces of glass, 3 fixators and 6 screws, easy dismounting and cleaning