The zero-clearance Flex Island fireplace insert is designed as a room divider, with four open sides enabling the hypnotic flame to be viewed from the front, back, left and right sides. The UL Listed Flex Island models come with a base component that holds the burner and a top component that lines the bulkhead above. With an EcoSmart Flex 60IL.BX1, you have design freedom with the choice of a Decorative Box on the left or right-hand side. Both designs are fitted with a glass panel that divides the box and the Firebox and creates an attractive streamlined look. Instantly transform any wall into a feature, indoors or out, with a stylish, clean-lined Flex Firebox. The XL700 burner delivers a captivating linear flame. With a 1.8 gallons capacity, this elongated ethanol burner has the power to heat up to 538ft2, making it ideal for residential and smaller commercial/hospitality spaces. Efficiency is a key feature of this burner, delivering up to 12 hours of heat generating flame from a single refill.