A note on sizing: the Orion Slim doesn't come in an exact 74". The closest size is 76", which adds about two inches of flame bed compared to a standard 74" unit. For a fireplace this wide, that difference is negligible, and the Heliovision technology makes it the standout choice for realism in this size range.

The Orion Slim uses Heliovision technology instead of LEDs. It projects virtual flames onto an internal screen, producing a fire effect that looks closer to a real wood-burning fireplace than anything else available. At 76" wide, the flame bed is expansive and the effect is even more convincing than the smaller sizes.

Why We Recommend It

• Heliovision virtual flame is in a different category than LED-based fireplaces. The flame depth, movement, and color are significantly more realistic, and the effect scales beautifully at this width.
• At 5-5/8" deep, it fits in a standard 2x6 wall for a clean recessed installation. Surface mount bracket is also included.
• Includes both crystal and log media options. The log set combined with the virtual flame produces the most convincing wood-burning look available in an electric fireplace.
• Multi-function remote plus app control through the Modern Flames app.

Worth Knowing

• 120V only, no 240V option. If you need higher heat output for a larger room, the Evolve or FlexMount offer 240V configurations.
• Hardwire or plug-in, both options are available. Requires a dedicated 20A circuit.
• At $5,999, this is the most expensive fireplace on this list. The Heliovision technology and the larger format drive the price.

Key Specs

The Evolve 74" brings Dimplex's most advanced LED flame technology to the 74" size class. Compared to the standard Ignite XL, the Evolve produces a deeper, more layered flame with better color transitions and more realistic movement. At 74" wide, the upgraded flame effect fills a massive viewing area and the difference from older LED platforms is even more apparent.

Why We Recommend It

• The flame technology is a genuine improvement over the Ignite XL. The Evolve's flame has noticeably more depth and dimension, and at 74" the wider flame bed makes the improvement even more visible.
• At 5-3/4" deep, it fits in a standard 2x6 wall.
• 120V or 240V configurations. At 240V, it puts out 8,530 BTU and heats up to 1,000 sq ft.
• Media includes acrylic crystal, glass, and log options.
• Compatible with the Dimplex Flame Connect app for phone control.

Worth Knowing

• Recessed installation only. No surface mount or wall mount option.
• At $4,549, it sits between the FlexMount and the Orion Slim. The Orion wins on pure realism; the Evolve wins on LED brightness, color options, and heat output at 240V.
• Plug kit available separately if you don't want to hardwire.
• At 104.7 lbs, plan for two people on the install.

Key Specs

The FlexMount 74" brings the same installation flexibility that makes this line stand out in every size category. Three mounting options, multi-sided configurations, and four included media sets, all at the lowest price on this list after the Spectrum Slimline. For a 74" fireplace with this many installation options, the value is hard to beat.

Why We Recommend It

• Three mounting options in one unit. Fully recessed, partially recessed, or surface mount. At 74", this flexibility becomes even more important because framing a recess this wide is a bigger project.
• Includes four media sets: glass, logs, rocks, and charcoal. The Beach Fire and Woodland media kits give you very different looks from a single fireplace.
• 120V or 240V. At 240V, it produces 10,000 BTU and heats 400-800 sq ft. That's the highest heat output on this list.
• Smart home compatible with Google Assistant, Alexa, and the Napoleon Home app. Scheduled heating and lighting for each day of the week.
• 13 ember bed and top light color options with customizable flame effects.

Worth Knowing

• At 7-1/8" deep, this is the deepest fireplace on this list. It won't fit in a standard 2x4 wall for a fully recessed install. The partially recessed and surface mount options work around this.
• Direct wire only. No plug-in option.
• 2-year warranty vs. 5 years on the Orion and Evolve.
• At 160 lbs, it's heavy. Plan for two people and solid mounting hardware.

Key Specs

The Spectrum Slimline lives up to its name. At just 4-5/8" deep, it's a full inch thinner than the next slimmest fireplace on this list and nearly 2-1/2" thinner than the FlexMount. That difference matters when you're working with a standard 2x4 wall or a shallow build-out where every fraction of an inch counts. It's also the most affordable fireplace in this guide at $2,299.

Why We Recommend It

• 4-5/8" depth is the thinnest in the 74" category. It fits in a standard 2x4 wall with a 3-7/8" rough opening depth, which none of the other fireplaces on this list can do.
• Wall mount or fully recessed installation. Includes a wall mount bracket for surface mounting.
• Includes both acrylic crystal and driftwood log media sets. Two distinct looks from one fireplace.
• 70" wide viewing area. Despite the slim profile, you get a large flame display.
• At $2,299, it's the most affordable option on this list.

Worth Knowing

• 120V only. No 240V option, so heat output tops out at 5,000 BTU for rooms up to 450 sq ft.
• LED flame quality is solid but uses an older generation of Modern Flames' LED technology compared to the Heliovision in the Orion Slim. The trade-off is the slim profile and lower price.
• 2-year warranty vs. 5 years on the Orion and Evolve.
• Push button remote (basic) rather than the multi-function remotes on the other models. No app control.

Key Specs