With High Performance Tech 9000 Burner System, Convertible Valve Reduces Inventory By 2/3"s!, Revolutionary molding process yields ceramic fiber logs with amazing detail and Brilliant Glow!, Fiber log design creates increased radiant heat, Tech 9000 Burner System with flames rolling up the front and between the logs creates a spectacular ""On Fire"" Appearance, Hidden Convertible Valve on all Tech 9000 HP burners ensures the most natural appearance, Convertible Valve allows you to add a remote control at any time, Fuel: Natural Gas, Complies with ANSI?Z21, 60 A-2000/CSA 2, 26A-2000 for installation in woodburning fireplaces, Warranty: Logs: Lifetime, Burner Pan: 2 Years, Valves: 2 Years, SKU: TWST8030