UNIVERSAL TUBE BURNER HEAT SHIELD better can be as simple as changing your heat plates. When your barbecue heat shields become dirty or rusty, they can cause flare ups and uneven cooking. When you replace your original barbeque heat tents with this stainless steel vaporizer bar you now control how evenly your food is cooked. Flare ups are caused by grease dripping onto your burners, which is why this burner cover fits directly on top of the burner to stop this from happening. By turning grease droppings quickly into smoke, this vaporizer bar can add flavor to any of your favorite grilled foods. This heat plate is also known as a Heat Shield, Heat Tent, Burner Cover, Vaporizor Bar, and Flavorizer Bar.