Alfresco Side Burners : Built-In 2 Burner Unit LP. This Alfresco Propane Gas Dual Side Burner has all of the power and control of a professional kitchen range. Side burner features two 20,000 BTU brass burners, recessed top for wind protection and easy cleaning, and all commercial stainless steel with heli-arc welded seams. AXE model burner also features a stainless steel cooking grid and includes matching stainless steel cover. Stamped with the Alfresco logo, you can be assured you are receiving high quality outdoor kitchen equipment.