3-Sided Electric Fireplace Ideas | Panoramic Heat For Open Rooms

A 3-sided electric fireplace shows flames through its front and both sides, making it a natural focal point for media walls and open-concept rooms.

Whether you’re dividing a great room, framing a TV, or building a feature wall, a 3-sided electric fireplace changes how a space feels. Because the flame is visible from multiple angles, it pulls the eye from every direction — which is exactly why designers use them in open floor plans. The trade-off is planning: these units need the right wall depth, framing, and placement to look intentional rather than awkward.

What Makes A 3-Sided Electric Fireplace Different

A true 3-sided unit exposes three viewing faces — the front plus both sides — through glass panels. That’s the distinction from a corner model, which typically shows only two faces, and from a see-through fireplace, which divides two rooms. Retailers also call these bay-style, multi-view, or peninsula units when they project into a room as a divider.

Nearly all 3-sided electric fireplaces are linear, built-in or wall-mounted, and many are configurable. Touchstone’s Sideline Infinity line, for example, installs four ways: all three glass sides visible, right side only, left side only, or front-only. Modern Flames’ Landscape Pro Multi goes further — single-sided, left corner, right corner, or 3-sided bay, with either a built-in clean-face installation or an optional cabinet for wall-mount styling.

Most units run on standard household power with no venting or gas lines. Heat settings typically land at 750W and 1500W, with some models rated around 5,100 BTU.

Design Ideas For Open Spaces

The best 3-sided placements treat the fireplace as the architectural anchor of the room. The most common approach centers the unit on a media wall, with the TV mounted above and the flame visible from the seating area and both adjacent zones. For open-concept homes, a peninsula installation — the fireplace projecting into the room — divides the living and dining areas without closing them off, so sightlines stay open in every direction.

For a room divider, choose a model that can be configured with all three sides visible, like the Touchstone Sideline Infinity. Mount it on a partial wall or a purpose-built column so the flame reads from the family room, the kitchen, and the hallway at once.

Where you place the unit matters as much as how you face it. Retail design guidance recommends aligning the top of the fire near seated eye level so the flame is the focus, not the floor or the ceiling. In a media wall, that usually means the fire sits lower than you might first expect, with the TV above and the hearth balanced beneath.

Built-In Vs. Wall-Mounted: What Fits Your Wall

Your wall construction decides which installation works. Built-in or recessed units need a wall cavity deep enough to hold the fireplace body — typically 9.5 to 14.5 inches of depth for linear 3-sided models — plus framing support and a plan for concealing the cord. Wall-mounted models, by contrast, need solid studs to support the brackets and a nearby outlet, but they skip the cavity requirements entirely.

Viewing window heights on these units run from about 15 to 22 inches, with widths from 30 inches up to 100 inches. Before you pick a size, measure the wall and confirm the cavity depth your shortlist requires.

If you’re choosing between models, our roundup of the best 3-sided electric fireplace options covers top performers by installation type and feature set.

Popular Models Worth Knowing

Two brands dominate US listings. Touchstone’s Sideline Infinity Series is frameless with a large flame display and multiple in-wall installation options, and the Chesmont Series offers a wall-hung design with a modern mantel. Modern Flames’ Orion Multi 76-Inch Three-Sided unit uses HELIOVISION flame technology, with three flame patterns, six flame colors, adjustable speed, multicolor ember bed, and downlighting.

Here’s how two widely listed models compare on dimensions and heat output:

Pricing varies widely by model and retailer. Some 3-sided units run well above $5,000, while high-end water-vapor models like the Faber 32″ e-MatriX approach $8,000. Always confirm current pricing on the exact product page before committing, since retailer listings don’t always show stable MSRPs.

FAQs

Do 3-sided electric fireplaces need venting?

No. These are electric units that produce no fumes or combustion gases, so they require no chimney, vent pipe, or gas line. You only need a standard household outlet nearby, which makes them a practical option for renovations where adding a vented fireplace would be difficult or costly.

Can a 3-sided fireplace be used as a room divider?

Yes, and it’s one of the most popular uses. When installed on a partial wall or a freestanding column with all three sides visible, the fireplace becomes a peninsula that separates two living areas while keeping sightlines open. Models like the Touchstone Sideline Infinity can be configured to show all three glass sides for exactly this purpose.

What depth do I need for a built-in 3-sided fireplace?

Most linear 3-sided electric fireplaces require a wall cavity between 9.5 and 14.5 inches deep. Before planning a recessed installation, check the manufacturer’s spec sheet for the exact depth of your model, and confirm your wall framing can accommodate it along with any necessary support and cord concealment.