“Impressive” is the only way to describe these massive wood burners. Designed for large custom applications, the VRT6000 Series vent-free gas firebox features a 30” tall opening and beautiful Mosaic Masonry™ brick that represents a true masonry fireplace appearance. When only an authentic masonry fireplace will do, the VRT6000 series has the industry’s best offering at a fraction of the cost of site built.