The 300 Series gas cooktops are engineered to deliver perfect results with minimal effort. FlameSafe thermocouple sensor will shut off the gas supply if flame is extinguished - for added safety and peace of mind. The low-profile cooking surface provides a timeless, streamlined look while keeping spills contained and makes clean-up easier than ever. The OptiSim burner design is wider and thicker which diffuses heat evenly for better flame control when simmering delicate sauces. High efficiency burner technology requires less gas BTUs to achieve a faster boiling time, resulting in energy and time savings.