Dimplex BBK20R Electric Fireplace, Black Revolutionary opti-myst ultrasonic technology produces a fine mist to create the illusion of flames and smoke. Easy fill water reservoir offers 12-14 hours of continuous flame and smoke effect Media bed of white rocks for a contemporary effect Completely safe, with no flame heat or emissions Economical to operaret, costing only pennies per hour and plugs into a standard household outlet. Opti-myst technology: Incredibly, life-like, patented 3-dimensional flame effect. Creates an illusion of fire and smoke. Easy-fill water tank: Offers 14 to 17 hours of continuous operation before refilling is required. Green: The green alternative. No harmful particulates or emissions and 100% efficient. On/off remote: Includes a convenient easy to use on/off remote for control at your fingertips. Safe: With no flame heat or emission and a glass front that remains cool to the touch; our fireplaces are the safe choice for your home.