Hearth rugs can make all the difference in the look of a fireplace. They also protect from flying sparks and embers that can damage carpet and flooring. Rectangles, ovals and half-rounds feature vibrant hues that add to the warmth of a blazing fire. Keep your fireside carpet protected from harm with a stylish hearth rug. A hearth rug protects your wood floor from accidental burn marks from flying fireplace sparks.