Alfresco Built-in Propane Gas Sear Zone Side Burner. AGSZ-LP. Searing Stations. This Alfresco Sear Zone Side Burner features a 27,500 BTU ceramic infrared burner that preheats to over 1,400 degrees in about 4 minutes! Lock in all the juices of your favorite cut of steak while the special U-grate catches the drippings, vaporizing them into flavor-enhancing smoke and leaving the beautiful, steakhouse style sear marks everyone loves. This sear zone side burner has a 9V electronic ignition, rapid preheat for easy searing or complete cooking, all commercial stainless steel for lasting durability, heli-arc welded seams and a matching stainless steel cover. Stamped with the Alfresco logo, you can be assured you are receiving high quality outdoor kitchen equipment.