A refractory anchor for lining a thermal vessel including (a) a mounting element positioned in the center of the refractory anchor that is adapted for mounting the refractory anchor to the thermal vessel; (b) two three-anchor fin arrangements that are each directly connected to the mounting element by a first anchor fin positioned in each three-anchor fin arrangement, wherein each three-anchor fin arrangement is positioned on opposite sides of the mounting element relative to one another such that the first anchor fins of each three-anchor fin arrangement are angled (α) relative to one another; and (c) optionally a reinforcement fin connected to and extending away from one of the three-anchor fin arrangements.