This model features the extra-large Visualite window with clear glass. It is 87% larger than their standard window. The large viewing area allows the cook to check progress without opening the oven door. The Speed Clean / Maxx Clean offers 2 special cleaning options. Speed Clean for light soils is 33% faster and Maxx Clean for heavy soils provides 25% more cleaning power. The Power Plus High Output Sealed Burners offer a wide range of heating output for larger pot and pan sizes. The 16 000 BTU