Mounted in the rear of the grill, level or above the cooking surface, these extra burners do a great job. Solid state electronic ignitors are the latest thing in easy starting. Push button piezo-electric starters do not offer the same reliability. Many manufacturers are offering oversized shelves in easy to clean materials with built in towel racks and tool holders. Large rubber wheels make for the smoothest handling.
Every grill has a primary cooking surface.
Most have additional racks that are versatile because they are further from the heat thus allowing you to move already cooked food to that level to leave warming while you complete other tasks. They also expand your total cooking area. It is attractive, easy to clean, extremely durable, doesn't rust, and it lasts a lifetime. Many users prefer porcelain finishes because they are easy to clean, very durable and also don't rust. The high gloss finish is also available in a wide variety of colors.