The SLK849 is the upgrade of SLK249 with the elegant Black Glass Bakeview Window and the 5th Burner and Built-in Griddle with Stainless Steel cover. The Side Compartment and full 25" wide Oven makes cooking a lot easier. It also has Electronic Ignition System, which allows ALL burners, including the Oven, to be lit with a match in case of a power faliure. The Porcelain top makes it a whole lot easier to clean up spills and nasty messes. Please check the features tab for more information.