Specifically designed for a single room application, the Flex Single Sided Fireplace Insert features one open side, enabling the flame to be viewed from the front. The bioethanol, true zero-clearance fireplace can be used to create a striking addition to a feature wall, integrated within cabinetry or a fireplace setting - whether in a residential dining room, indoor or outdoor living area, or commercial spaces. The Flex 68SS.BX2 includes a design that features Decorative Boxes on either side of the firebox. This 2 Box-design boasts an attractive visual symmetry while the glass panels that divide the Decorative Boxes and the Firebox create an uninterrupted, streamlined look. The XL500 burner, the 'baby' of the XL Series, delivers a stunning, long-lasting linear flame. It may be compact in size, but with a 1.3 gallons capacity, this ethanol burner can heat up to 431ft2. Efficiency is a key feature of this burner, delivering up to 13 hours of heat generating flame off a single refill.