Its simple and modern design, this 15 In x 15 In fireback not only accents the beauty of your fireplace, but makes it more efficient in heating the house. The fireplace fireback absorbs the heat and then radiate the heat directly into the room. Constructed of 14-ga., 304-alloy stainless steel, this Radiant Fireback weighs about one sixth the weight of a cast-iron fireback. It's easier to handle. Each fireback has a gentle curve applied to its back. This pre-stresses the fireback to minimize warping. This fireplace fireback features slotted support legs that allow you to adjust it to three angles: 65, 75 and 90 degrees. The legs are 1" high, 2 3/8" wide and 9" long.