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.The lower tier of the Wolf dual-stacked burner lets you enjoy a range of almost unheard of precision control. Melt fine chocolate without separation, reduce sauces without scorching, or keep soups at an ideal, gentle bubble for hours.Maintain Control with Dual-Stacked BurnersMaintain control with dual-stacked burners that go from 18,000 Btu down to a mere breath of flameSimmer and Melt SaucesSimmer and melt sauces, soups, and marinades easily with the lower tier of the dual-stacked burnerMatches the Professional LookMatches the professional look of other Sub-Zero, Wolf, and Cove productsReignites Flame AutomaticallyReignites flame automatically with spark ignition systemCleanup is a Snap - Burner PansCleanup is a snap as sealed, seamless burner pans contain sloshes and spillsMove Pots and Pans - Cast IronMove pots and pans effortlessly across the continuous cast-iron gratesCooktop Specifications3 - 9,200 Btu Burner1 - 12,000 Btu Burner1 - 18,000 Btu Burner