• 4 Stainless steel burners
• 48,800 BTU-per-hour input
• 12,000 BTU-per-hour input flush-mounted side burner
• Snap-Jet Individual burner ignition system
• 3/8 inch or 9.5mm diameter stainless steel rod cooking grates
• Stainless steel Flavorizer bars
• Primary cooking area =468 sq. in.
• Warming rack area =112 sq. in.
• Total cooking area =580 sq. in.
• Tank not included with LP models
• Natuarl gas grill includes a 10-foot flexible hose

http://www.weber.com/grills/assets/en-us/pdf/Summit_S420.pdf