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Range Cookers Dual Fuel Dual fuel range cookers combine electric and gas heating to give you the best of both. They provide instant heat adjustment on the cooktop and precise baking and roasting results inside the oven. These appliances are ideal for chefs who want to explore different cooking techniques and styles. They're not inexpensive, and they need electricity and gas to install. Convenience Dual fuel range cookers blend the precision and even heat distribution of electric ovens and gas power.