A three-sided electric fireplace solves a specific design problem: how to put a fireplace in the middle of a room or at the end of a peninsula wall without giving up the flame view from two angles. Single-sided fireplaces look right against a flat wall and wrong everywhere else. The three-sided format puts glass on the front and both short ends, so the flame is visible from anywhere in an open-plan space. The wrong three-sided fireplace has fake-looking flames at the corner glass, poor heat distribution, and a fragile firebox that warps in the first year. After evaluating these five models across peninsula installs, room dividers, and corner builds in two open-plan homes, this is the lineup that performed.
Quick comparison
| Fireplace | Width | Heat output | Flame engine | Best fit |
|---|---|---|---|---|
| Touchstone Sideline Bay | 50” | 5,000 BTU | LED with ember bed | Peninsula install |
| Dimplex Multi-Fire XHD | 40” | 4,800 BTU | Acrylic ice/log | Premium build |
| Modern Flames Landscape | 60” | 5,000 BTU | LED multi-color | Wide bay |
| MagikFlame Trinity | 36” | 5,000 BTU | Hologram flame | Realism focused |
| Napoleon Trivista Pictura | 50” | 5,000 BTU | LED flame and ember | Corner install |
Touchstone Sideline Bay 50 - Best Overall
Touchstone’s Sideline Bay is the three-sided unit we keep coming back to for peninsula installs. The 50 inch front glass plus two 14 inch side glass panels give a wide, even flame view from every angle. The LED flame engine runs at a consistent height across all three glass surfaces, which sounds basic but is where a lot of competitors fall short: cheap units have a bright center and dim ends.
Heat output is 5,000 BTU on high, which warms a 450 to 500 square foot open area. The unit ships with a glass ember bed and a separate set of resin logs, so you can swap looks. Twelve flame colors and five ember colors cover most decor palettes.
Trade-off: at this width the unit needs a 60 inch minimum opening with proper framing, and the side glass means trim work has to be precise.
Best for: peninsula installs and built-out bays in open-plan living areas.
Dimplex Multi-Fire XHD 40 - Best Premium Build
Dimplex’s Multi-Fire XHD line uses a proprietary LED flame engine with separate ember and flame layers, and the result is the most three-dimensional flame appearance we have seen in an electric unit. The 40 inch width is the smaller of the lineup, which makes it the right pick for tighter peninsula installs or shorter divider walls.
Build quality is a step above most of the field. The firebox is heavier gauge steel, the glass is thicker, and the fan is noticeably quieter on the heat setting. Acrylic ice glass and resin log media are both included.
Trade-off: significantly more expensive than the Touchstone, and the 40 inch width is restrictive if the install opening is wider than 48 inches.
Best for: shorter peninsula walls, premium kitchen-to-living dividers, anyone who wants the most realistic flame and is willing to pay for it.
Modern Flames Landscape Pro Multi - Best for Wide Openings
Modern Flames Landscape Pro Multi comes in 60 inch and 80 inch widths, which makes it the right unit for wide bay installs where a 40 or 50 inch fireplace would look undersized. The flame engine runs three independent flame columns plus a multi-color ember bed, with full RGB control through the remote.
Heat output is 5,000 BTU, same as the smaller units, since all electric fireplaces hit the 1500W ceiling. The visual difference is the width: 60 inches of three-sided glass is a serious focal point.
Trade-off: the size demands a substantial framing project, and the price is a step up from the Touchstone Bay at equivalent width.
Best for: wide bay installs in great rooms, large peninsula walls, modern minimalist builds.
MagikFlame Trinity - Best for Flame Realism
MagikFlame uses a holographic flame projection system instead of LED, with real fire footage projected onto a curved mesh. The result, viewed at the right distance, looks the closest to a real wood fire of any electric unit we have evaluated. The Trinity model is the three-sided version of the standard MagikFlame.
The flame appearance is the selling point. Heat output is standard at 5,000 BTU, and the unit also includes a Bluetooth speaker that plays crackling fire sounds.
Trade-off: the holographic flame requires a longer viewing distance to look right. Up close (under six feet) the projection becomes visible. The unit is also deeper than LED competitors to accommodate the projection system.
Best for: living rooms with viewing distance over eight feet, anyone for whom flame realism is the top priority.
Napoleon Trivista Pictura - Best for Corner Installs
Napoleon’s Trivista Pictura is built for corner installs specifically, with the front glass running 50 inches and the two short sides angled to project the flame view into a corner of the room. The LED flame engine handles all three glass panels evenly, and the unit includes a frame-style trim that hides the firebox edges cleanly.
Heat output is 5,000 BTU. Eight flame colors and four ember bed options cover most setups. The remote includes a programmable thermostat, which most competitors do not.
Trade-off: the corner-specific geometry limits install flexibility. Use it in a corner or do not use it.
Best for: corner installs in living rooms, dens, or basement family rooms.
How to choose a 3 sided electric fireplace
Match the unit to the install location. Peninsula installs work with most three-sided models. Corner installs work best with the Napoleon Trivista. Wide bay installs need the 60 inch or 80 inch Modern Flames Landscape. Pick the geometry first, then the brand.
Width should match the room. A 36 inch unit looks small in a great room. A 60 inch unit looks oversized in a small den. Measure the wall or peninsula opening, subtract for framing, and pick a fireplace that fills 60 to 75 percent of the available width.
Flame engine type changes the look. LED units are bright, even, and reliable. The Dimplex three-layer LED looks the most three-dimensional. MagikFlame holographic looks the most like real fire but needs viewing distance. Walk into a showroom if possible.
Heat output is identical across brands. All electric fireplaces cap at 5,000 BTU because of the 1500W circuit ceiling. If you need more heat, electric is not the right format. Use gas or a wood-burning insert.
Where 3 sided makes sense and where it does not
Three-sided fireplaces are the right call for peninsula walls between kitchens and living rooms, room dividers in open-plan spaces, corner installs that want flame view from two directions, and built-out bays that project into a great room. They are the wrong call for flush wall installs (the side glass is wasted), recessed-only installs against masonry, or any location where the short ends will be obstructed by furniture, cabinetry, or trim.
If the install is against a flat wall with no peninsula or bay, save money and pick a linear single-sided unit. The flame view from one angle is identical and the price is lower.
Wiring and circuit notes
Every three-sided electric fireplace in this lineup runs on a standard 120V 15-amp outlet. The 1500W heater pulls roughly 12.5 amps on the high setting, which leaves headroom on a dedicated circuit. Sharing the circuit with other appliances is risky and will trip the breaker if a vacuum or space heater is plugged into the same line.
Most professional installs hardwire the fireplace through a recessed outlet inside the framing cavity, so no cord is visible. Plug-in installs work fine if the outlet is hidden behind the firebox or in the cabinetry below. Check local code: some jurisdictions require the receptacle to be accessible without removing the unit.
For related guidance see our 100 inch TV stand with fireplace article and the electric vs pellet vs wood stove comparison. Our evaluation approach is documented in our methodology.
A three-sided electric fireplace is a design statement. The Touchstone Sideline Bay is the safe overall pick, the Dimplex Multi-Fire XHD is the premium upgrade, and the Napoleon Trivista is the right call for corners. Pick based on install location first, flame engine second, and price third.
Frequently asked questions
What is a 3 sided electric fireplace?+
A three-sided electric fireplace has glass on the front and both short ends, so the flame is visible from three viewing angles instead of one. The format is also called a bay or peninsula fireplace and is built for installs where the firebox projects into a room, sits at the end of a partial wall, or acts as a divider between two living spaces. The heating element and LED flame engine are housed at the back.
Do 3 sided electric fireplaces heat as well as single sided?+
Heat output is similar, typically 4,500 to 5,000 BTU on the high setting, which warms a 400 to 500 square foot room. The extra glass surface does cause slightly more heat loss compared to a flat unit with a solid surround, but the practical difference is small. The bigger heating limitation in any electric fireplace is the 1500W ceiling on a standard 120V circuit, which all three-sided models share.
Can you mount a 3 sided fireplace flush against a wall?+
No. The whole point of three-sided is that two short ends are glass, so the unit must be installed with those ends visible. Common installs are at the end of a peninsula wall, as a freestanding room divider, in a built-out bay that projects into the room, or as a corner unit where the front and one short side are visible. A flat wall install wastes the design and blocks two glass panels.
Are 3 sided electric fireplaces hard to install?+
The fireplace itself slides into a framed opening and plugs into a standard 120V outlet, which is no harder than a single-sided unit. The carpentry is the work: framing a three-sided cavity requires more planning than a flat wall recess, and the glass ends need clear viewing space with no obstructions. Most installers budget a full day for the carpentry and trim work, and the fireplace install itself takes under an hour.
Do you need venting for a 3 sided electric fireplace?+
No. All electric fireplaces, including three-sided models, are vent-free. There is no combustion, no flue, no chimney, and no fresh air requirement. The only requirement is a clear airflow path around the heater intake and exhaust grilles, which are usually on the bottom or back of the unit. This is one of the main reasons people choose electric over gas for peninsula and divider installs.
Morgan Davis
Morgan Davis writes for The Tested Hub.