The Modern Flames Redstone 42" Built-in/Insert Electric Fireplace brings Hybrid-FX™ flame technology, real supplemental heat, and flexible installation into a wider, more prominent size than the 26" through 36" models in the line. It's a strong fit for upgrading an old wood-burning fireplace or installing as a clean, gas-free built-in feature in a new wall, and the wider viewing area gives the multi-dimensional flame effect noticeably more presence than the smaller Redstone sizes offer, without requiring a proportionally larger installation budget or extended construction timeline for the homeowner.
The heater alone covers up to 400 square feet at 5,000 BTU, making it practical as a genuine secondary heat source for living rooms, dens, and apartments rather than a purely decorative unit that only produces visual warmth. Flame speed, ember bed color, and downlighting are each independently adjustable through the included remote or the free Modern Flames app, and the fireplace ships with a driftwood log set and acrylic crystal media already arranged for a layered, realistic ember bed. Because it installs as either a retrofit insert or a new-construction built-in, it fits both renovation projects and fresh builds without requiring a gas line, chimney, or venting of any kind. It's CSA certified and backed by a 5-year manufacturer's warranty, reflecting a fireplace meant for daily use rather than occasional ambiance.
Key Features
Hybrid-FX™ Flame Technology – multi-dimensional flame depth and motion
Multi-Color Flame, Ember Bed & Downlighting – independent RGB control for each zone
Built-In or Insert Installation – retrofit or new construction
5,000 BTU Heater – adjustable thermostat and timer, up to 400 sq ft
Remote & App Control – handheld remote plus iOS/Android app
No Venting Required – fully electric, no gas or chimney
