Maximum Heat Is Delivered By The Upper Tier Burner For More Rapid Boils And Hotter Sears. The Low Flame On The Lower Tier Burner Eliminates The Need For A Double Boiler Completely, And Keeps Even Delicate Sauces Warm Without Fear Of Scorching Or Separating. Pairs With Modules Seamlessly To Create Your Personalized Ideal Workspace. Use Our Slim 15" Width La Carte With Other Modules For A Custom Cooking Array. Maintain Control With Dual-Stacked BurnersMaintain Control With Dual-Stacked Burners That Go From 18,000 Btu Down To A Mere Breath Of Flame Simmer And Melt SaucesSimmer And Melt Sauces, Soups, And Marinades Easily With The Lower Tier Of The Dual-Stacked Burner Pairs Easily With Tf CooktopsPairs Easily With Other Transitional Framed Cooktops Reignites Flame AutomaticallyReignites Flame Automatically With Spark Ignition System Cleanup Is A Snap - Burner PansCleanup Is A Snap As Sealed, Seamless Burner Pans Contain Sloshes And Spills Select Stylish Stainless KnobsSelect Stylish Stainless Control Knobs Capped In Black Move Pots And Pans - Cast IronMove Pots And Pans Effortlessly Across The Continuous Cast-Iron Grates Cooktop Specifications(Ul)(Li)1 - 9,200 Btu Burner(/Li)(Li)1 - 12,000 Btu Burner(/Li)(Li)1 - 18,000 Btu Burner(/Li)(/Ul)