Best Built-in Fireplaces for Modern Homes: A Comprehensive Guide
Electric built-in fireplaces blend style with warmth, making a striking centerpiece while remaining easy to install. This guide spotlights five popular built-in models—each with unique flame effects, installation options, and heating capabilities—so you can compare design, performance, and value at a glance.
Use the quick reference table below to gauge key specs, then explore detailed product sections for features, installation notes, and how each model suits different room sizes and interior aesthetics.
| Product | Brand | Key Benefit |
|---|---|---|
| Westinghouse 50-Inch Electric Fireplace Heater | Westinghouse | Extensive flame customization; adjustable heat; wall-mount or recessed. |
| Dimplex Slim 50-Inch Built-in Electric Fireplace | DIMPLEX | Very shallow depth; multi-color flames; remote included. |
| Modern Flames Redstone 36-Inch Built-in | Modern Flames | High-definition flame display with multiple colors and lighting options. |
| Dimplex Revillusion 42 Inch Built-in Firebox | DIMPLEX | Natural-looking flames with realistic depth and versatile install. |
| Touchstone Sideline Infinity Pro 84-Inch Built-in | Touchstone | Three-sided flame, smart controls, and strong heating capacity. |
Westinghouse 50-Inch Electric Fireplace Heater
The Westinghouse model blends dramatic flame effects with practical warmth, suited for larger living spaces. It supports wall mounting or flush recessed installation to create a streamlined look. A built-in thermostat enables precise comfort control, with heat output adjustable to maintain temperatures between 62F and 82F.
- Flame customization: up to 144 color combinations for flames and embers
- 5 independent brightness levels and 5 flame speeds
- Interchangeable faux log and ember bed sets for decor
- Fits 49″ x 15″ x 6″ openings; 50″ x 15.75″ front viewing
- Two installation options: standard wall-mount or in-wall recessed
The heater operates with 750W or 1500W settings and includes a thermostat to help maintain comfortable room temperatures, making it a versatile centerpiece as well as a supplemental heat source.
Dimplex Slim 50-Inch Built-in Electric Fireplace
The Dimplex Slim is designed for tight spaces, with an exceptionally shallow depth that fits easily into 2×4 framing or with the included wall mount. Its Multi-Fire SL-Tech technology adds depth to the flames, which can be colored Yellow, Orange, Blue, or Mixed, delivering a vivid, customizable focal point.
- Slender depth for flush mounting
- Multi-Fire SL technology for layered flames
- Flame color options: Yellow, Orange, Blue, Mixed
- Includes acrylic crystal ember bed for extra sparkle
- Remote control for convenient operation
With a 1500W heater option, this model provides robust supplemental heat while maintaining a slim profile that complements modern interiors.
Modern Flames Redstone 36-Inch Built-in Electric Fireplace
The Redstone line emphasizes a striking, high-definition flame display with Hybrid-FX technology, combining vivid flames with bright RGB up-lighting and down-lighting. It offers 10 flame colors and can heat up to 5,000 BTU per hour, making it a strong choice for ambience with practical warmth in medium-sized spaces.
- Hybrid-FX flame technology for depth and realism
- High-intensity RGB up-lighting and down-lighting
- 10 flame color options for mood customization
- Heats up to 5,000 BTU/hour
- 36-inch flush-mount design for a seamless look
Versatile installation and immersive lighting effects make this model a centerpiece for contemporary rooms seeking bold flame realism.
Dimplex Revillusion 42-Inch Built-in Firebox
The Revillusion firebox creates an illusion of a natural fire with its specialized flame technology and a realistic interior. It can provide on-demand heat for up to 1,000 square feet, though the heater can be deactivated if warmth is not needed. The included 120V plug kit allows flexible installation options, from plug-in to hardwired setups.
- 42-inch firebox with a glass front
- Revillusion flame technology for depth and realism
- Heats up to about 1,000 sq. ft. (heater can be turned off)
- Concrete interior for a natural, weathered look
- Includes 120V plug kit for easy installation
Ideal for spaces where a natural stone or concrete aesthetic is part of the design language, while still delivering modern flame effects.
Touchstone Sideline Infinity Pro 84-Inch Built-In
The Sideline Infinity Pro delivers a premium built-in experience with three-sided flame display, plus 13-color down lighting and crackle sound to enhance realism. It supports four installation options—three-sided, left-visible, right-visible, or front-only—and a choice between plug-in or hardwired power. A 1,500W heater provides substantial warmth for large living areas.
- Three-sided flame presentation for expansive viewing
- Smart controls via touchscreen, remote, or app
- Four installation configurations for flexible placement
- Premium crackle sound with adjustable volume
- Heats up to 1,500W for robust warmth
Designed to be a centerpiece in wide wall spaces, combining advanced flame effects with strong heating performance and modern control options.
Buying Guide
When choosing a built-in electric fireplace, consider room size, mounting style, and how you want to balance heat with ambiance. Start by assessing the space: larger rooms benefit from higher heat outputs (roughly 1,000–1,500 watts), while smaller areas may prioritize flame realism over heating power. Installation type matters: flush recessed models deliver a seamless look, while wall-mount designs are easier to retrofit in existing rooms. Power supply is another key factor; some units include plug-in options, while others are designed for hardwire connections.
Flame realism and color options influence the perceived value of the unit. Hybrid technologies, multi-color flames, and ember bed accents create depth and movement that mimic real fire, especially when paired with backlighting or down-lighting. Smart features—remote control, apps, voice compatibility—add convenience and integration with home automation systems. Durability and warranty protect your investment, particularly for high-visibility installations in family spaces or entertainment areas.
Durability, maintenance, and safety should guide decisions as well. Look for features such as thermostat-equipped heaters for consistent warmth, cool-touch exteriors, and automatic shutoff settings. Consider the aesthetic style of the room—contemporary, rustic, or industrial—and how the fireplace color palette and ember bed complement existing furnishings. For large, multi-wall installations, three-sided or long-format models can provide symmetrical flame displays. Finally, compare warranties and customer service support to ensure reliable coverage should you need assistance after installation.
Product Feature Snapshot
| Product | Heater (W) | Flame / Lighting | Installation | Notable Feature |
|---|---|---|---|---|
| Westinghouse 50-Inch | 750W / 1500W | 144 color combos; 5 brightness; 5 speeds | Wall-mount or recessed | Thermostat 62F–82F |
| Dimplex Slim 50-Inch | 1500W | Yellow/Orange/Blue/Mixed | Flush mount or wall mount | Very shallow depth; acrylic ember bed |
| Modern Flames Redstone 36-Inch | Up to 5,000 BTU/hour | 10 colors; HD flame display | Flush mount | Hybrid-FX lighting |
| Dimplex Revillusion 42-Inch | On-demand heat (variable) | Revillusion flame technology | Plug-in or hardwire | Realistic natural-look flames |
| Touchstone Sideline Infinity Pro 84-Inch | Up to 1,500W | 3-sided flame; 13-color down lighting | Four installation options | Crackle sound; app control |