These Heat Reflector/Shield firebacks are easy to install and great for protecting masonry firebacks from heat damage. Theyare also great for restoring the insulation in pre-fab zero-clearance ceramic fireboxes when they are cracked and getting additional heat out of any open fireplace (20% to 30% or more depending on the fireplace). Fireplaces with gas logs really benefit from the installation of a "Heat Reflector/Shield" fireback. Measures 24" Wide x 24" High. This attractive stainless steel fireback features a wheat etching.