Optimyst rgb cassette 20 inch built-in water vapor fireplace

Bring innovative, design-forward elegance into any space with the Dimplex Optimyst RGB Cassette, a built-in electric fireplace solution that uses advanced water-vapor technology to create ultra-realistic 3D flames and drifting smoke — without soot, venting, or fuel. This versatile cassette offers full customization with five flame color options (natural orange, blue, violet, red, aquamarine), adjustable flame intensity, and an ember-bed tray so you can personalize the look and match your décor. Whether installed as a single-sided fireplace, a see-through feature wall, or part of a modular multi-cassette configuration, it delivers striking visual impact and flexible design freedom. With cool-to-the-touch flames, optional crackling sound effects, and low-maintenance operation powered by water and electricity, the Optimyst RGB Cassette transforms ordinary rooms into sophisticated, atmospheric retreats — ideal for modern interiors, media walls, or elegant custom fireplace installations.