Dimplex 40-inch Opti-Myst Pro 1000 Built-In Electric Firebox with Heat

The Opti-Myst® Pro 1000 GBF1000-PRO delivers ultra-realistic water-vapor flames in a clean 40-inch built-in format, finished with a crisp front glass for a polished, architectural edge. It’s engineered as a pro-ready firebox that ships configured to run with or without heat, so you get year-round ambience and comfortable supplemental warmth without venting or gas lines.

At its core are two Opti-Myst Pro 500 cassettes that create a continuous ribbon of flame and “smoke” using ordinary water—cool to the touch and zero-emissions. For everyday use, control lives in the Flame Connect App, the handheld remote, and discreet on-unit controls, and the system is hard-plumb ready for a continuous water supply in longer-run residential or hospitality installs.

Designers get flexibility without the drama: a low-maintenance, built-in chassis that reads modern and minimal, optional accessories to tailor the presentation, and electric simplicity that makes placement practical where traditional fireplaces aren’t.