The simple black frame of the Tahoe wall-mounted fireplace leaves the revolutionary Opti-myst flame technology to shine and enhance its audience. The contemporary rock bed can be set to create a meandering flame. The flame can be viewed with or without heat. Revolutionary ultrasonic technology is used to create the flame and smoke effects of the Dimplex Opti-myst. As the mist rises up through the logs, the light reflects against the water molecules, creating a convincing illusion of flames and smoke. The result is an appearance so authentic that it will be mistaken for a true wood-burning fire. The unit uses 120-volt power (1,400 watts) and can generate 4,779 Btu.