Hargrove 18" Element Series Vent Free Natural Gas Burner System With Driftwood Twig Kit and Millivolt Valve w91.25 Real Fyre Direct Vent Systems 1400R RM2 NG OW3 G9T F12 CH Real Fyre Direct Vent Systems Limited Warranty The insert body and firebox are warranted as long as you own them (lifetime) 5" Solid Pack 8" (20 cm) Olympia Chimney SBI Division Venting Ventis 1" Solid Pack 8" (20 cm) Olympia Chimney SBI Division Venting Nexvent 1" Solid Pack 8" (20 cm) Security Chimney S 2100 + 2" Solid Pack 8" (20 cm) Selkirk Super Vent 2100 (JM) 2" 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 CF Sentinel (CF) 2" Solid Pack 8" (20 cm) *Specific components may be required depending on the chimney manufacturer Refractory Logs Hargrove gas logs carry a limited lifetime warranty against any manufactured defect or breakage when installed indoors The Element Series is a contemporary linear vent free burner system that comes standard with a mirrored stainless back panel to reflect the flame