All Sole Gourmet TR series gas grills are equipped with interchangeable high-efficiency 304 stainless steel U-burners each with their own flame thrower ignition system for even heat and an effortless light. Each radiant briquette is secured in place by a system of interlocking stainless steel flame-tamers for optimal distribution of heat across the entire grilling area while separating the flame from your food and reducing unwanted flare-ups.