The artistically created, ultradetailed Ultimate 5 gas logs from Eiklor Flames are made of high-heat (2,600-degree) ceramic refractory material and are heated by the company’s patented five-burner system, with unique stainless-steel components and heavy-duty iron grates, to give you an extraordinarily realistic, energy-efficient, toasty-warm fire. Sizes range from 18 to 36 inches.