The Outdoor Plus Square 36" Hardieboard & Steel Frame Natural Gas Ready to Finish Fire Table with Door & Flame Sense with Spark Ignition w13.5 Manufacturiers* Brand Type Diameter American h47.5 Manufacturiers* Brand Type Diameter American Metal HSS AC triple Wall 8" (20 cm) American Metal HS AC triple Wall 8" (20 cm) ICC Excel 2100 1" Solid Pack 8" (20 cm) M&G DuraVent DuraTech 1" Solid Pack 8" (20 cm) M&G DuraVent DuraTech Canada (DTC) 1" Solid Pack 8" (20 cm) M&G DuraVent DuraPlus HTC 2" Solid Pack 8" (20 cm) M&G DuraVent DuraPlus AC triple Wall 8" (20 cm) Metal Fab Temp Guard 1" Solid Pack 8" (20 cm) Olympia Chimney Ventis 1" Solid Pack 8" (20 cm) SBI Venting Division Nexvent 1" Solid Pack 8" (20 cm) Security Chimney ASHT+ 1" Solid Pack 8" (20 cm) Security Chimney S 2100 + 2" Solid Pack 8" (20 cm) Selkirk Ultra Temp (UT) 1" Solid Pack 8" (20 cm) Selkirk Super Pro (SPR) 1" Solid Pack 8" (20 cm) Selkirk Super Vent (JSC) 1" Solid Pack 8" (20 cm) Selkirk Hart & Cooley (TLC) 1" Solid Pack 8" (20 cm) Selkirk Sure Temp (ST) 1" Solid Pack 8" (20 cm) Selkirk UltimateOne 1" Solid Pack 8" (20 cm) Selkirk CF Sentinel (CF) 2" Solid Pack 8" (20 cm) Selkirk Super Pro 2100 (ALT) 2" Solid Pack 8" (20 cm) Selkirk Super Vent 2100 (JM) 2" Solid Pack 8" (20 cm) *Specific components may be required depending on the chimney manufacturer Rust resistant side zippers allow easy access to firewood this beautiful high end fire pit is perfect for both Designed and built applying for the newest technological advances in burner construction and energy conservation