Incandescent fibers are an innovative material used as a hearth lining both in standard bio-fuel-powered bio-fireplaces, natural gas-powered fireplaces or LPG. The fibers are an additive that creates illusions of sparks in a lit device. What distinguishes this product? • Quick and easy installation • Improves the appearance of a burning bio-firepel • Reduces biofuel consumption • Stabilizes the flame of the biofireplace • Service life up to 300 hours  Installation The use of incandescent fibers is simple and takes only a moment! We remove the incandescent fibers from the packaging, separate them as desired and place them on the biofirepen burner. In simple burners, we alternately arrange along the line of fire. In round burners, we concentrate the fibers in the middle part. When decomposing incandescent fibers, the burner must be cold.