Flare Double Corner 80 frameless linear gas fireplace with the flame wrapping three glass faces
Design Guide · Corner & Peninsula

Corner Fireplaces: Frameless Linear Gas Designs by Flare

A corner fireplace is a multi-sided fireplace built to make flame visible from more than one direction — anchoring open floor plans, defining transitions, and turning dead corner space into the centerpiece of a room.

THE FRAMELESS FORUM KYLE BROOKS 9 MIN READ JUNE 2026

What makes a corner fireplace different?

Most fireplaces are specified flat against a wall — one direction of flame, one focal point, fixed to one area of the room.

Flare’s frameless linear gas corner fireplaces change that by wrapping a single continuous flame across two or more open glass faces. The fire bridges two adjoining walls, marks the handoff between zones, and makes what used to be dead corner space the design centerpiece of the room.

Whether the project is a modern residence, a hotel lobby, or a high-end commercial interior, a corner fireplace creates a sightline dynamic a flat fireplace simply cannot match.

A flat fireplace serves one seating area. A corner fireplace earns its place in several rooms at once.

The four corner configurations

All four share the same frameless design language — no visible metal frame, no surround clutter, just fire and glass. They differ in how many faces the flame wraps and where the unit sits in the room — two-sided in the Left and Right Corner, three-sided in the Double Corner and Room Definer. Each comes in multiple widths, three glass heights, and a choice of media: black diamonds, glowing embers, or driftwood logs.

TWO FACES

Left Corner

Glass faces front and right; installs in the left corner of the room.

VIEW MODELS →
TWO FACES

Right Corner

The mirror image — glass faces front and left; installs in the right corner.

VIEW MODELS →
THREE FACES

Double Corner — 3-Sided (Bay)

A three-sided fireplace — glass wraps the full corner bay, with flame visible on three sides at once.

VIEW MODELS →
THREE FACES

Room Definer (Peninsula)

Freestanding, projecting into the room with flame visible from three sides.

VIEW MODELS →
Flare Double Corner 80-inch frameless linear gas fireplace wrapping three glass faces in a contemporary great room
Flare Double Corner 80″ — one flame, read from the kitchen, the dining area, and the main seating zone.

Left and Right Corner

The Left Corner installs in the left corner with glass facing forward and to the right; the Right Corner is its mirror. Both open the flame across two adjoining faces, and because Flare builds them to identical specifications they can be paired in a symmetric room to frame a central seating zone. On the Celebrity IOU project with Howie Mandel, a Left Corner anchored a luxury entertaining space; the Cosentino collaboration used an 80-inch Left Corner clad in large-format stone for a monolithic, frame-free fireplace wall.

Double Corner — 3-Sided (Bay)

The Double Corner is Flare’s three-sided fireplace: glass wraps across three faces — front, left, and right — so the flame reads from every angle and becomes the structural anchor of a large room. The Frank Wright Double Corner shows it at full scale: an 80-inch unit with 24-inch glass, visible at once from three zones.

Room Definer (Peninsula)

The Room Definer is freestanding, projecting into the room with glass on three sides. Rather than fitting into a corner, it uses fire as a boundary — separating living from dining, or sleeping from sitting — without building a wall or blocking light. It is Flare’s tool for defining zones in a fully open plan.

Flare Double Corner 45-inch fireplace fitted with the invisible mesh safety screen
Flare Double Corner 45″ with the invisible mesh safety screen.
Flare Right Corner 70-inch linear gas fireplace visible from two sides of an open-plan living room with a stacked-stone surround
Flare Right Corner 70″ — two faces of flame in a stacked-stone surround.

Why architects choose corner fireplaces

Design teams reach for a corner configuration when a single flat wall of flame cannot do justice to how the space is actually lived in. Wrapping continuous flame across two or more faces makes one fireplace a focal point several zones can share — which is why it recurs in open-plan, multi-use, and luxury work.

01

Open floor plans

The challenge in a large undivided volume is giving it a center of gravity without erecting walls. Set where kitchen, dining, and living meet, a two-sided flame anchors the whole floor while keeping sightlines open — and frameless glass keeps it visually light, so the fire reads as the feature rather than a bulky surround.

02

Multi-room visibility

Where a flat fireplace serves one seating area, a Left, Right, or Double Corner can be enjoyed from the living room and the kitchen, or from a hallway and an adjoining lounge. One fireplace earns its place in several rooms at once.

03

Room transitions

Placed at the junction between two areas, the fireplace marks the transition without closing it — a fire you move around rather than a wall you move through. The Room Definer is purpose-built for this, holding a boundary while preserving flow and daylight.

04

Modern luxury homes

Frameless, edge-to-edge glass and continuous flame deliver the gallery-like minimalism these projects demand — no frame, trim, or hardware interrupting the surrounding stone, plaster, or millwork. It reads as architecture rather than appliance.

05

Hospitality spaces

Lobbies, lounges, and restaurants are seen from many angles and occupied for long stretches. Corner and Double Corner units project warmth across a wide field of view, and Cool Touch Wall plus heat-management options support more flexible wall planning when installed to Flare’s manuals and clearances.

06

Primary bedroom suites

One unit can serve the sleeping area and an adjacent sitting room, spa bath, or balcony. The wrapped flame creates intimacy from the bed while staying visible from the lounge — and lower glass heights with heat-release options keep it comfortable in more enclosed volumes.

Flare Left Corner 100-inch frameless linear gas fireplace set in a polished marble feature wall in a luxury home
Flare Left Corner 100″ with 24″ high glass, in polished marble.
Flare Double Corner 80-inch frameless linear gas fireplace as a wide-view focal point in an open great room
Flare Double Corner 80″ — a wide-view anchor for a great room.

Specifying a Flare corner fireplace

Beyond width, glass height, and media, the detail that matters most on a corner unit is heat management — because the fireplace is flanked by walls or built-ins on two sides rather than one. Cool Touch Wall helps manage heat around the fireplace wall and can support more flexible finish options when installed according to Flare’s installation manual, heat release requirements, and project-specific specifications. The Active Heat Flex System gives designers control over how heat exits the unit. For corner-specific planning, see Installation Mistakes to Avoid with Frameless Fireplaces.

Widths
Multiple widths across all four corner configurations
Glass heights
Three heights — match the glass to the visual weight the fire should carry
Media
Black diamonds, glowing embers, or driftwood logs
Heat
Cool Touch Wall and Active Heat Flex for two-sided wall conditions

Frequently asked questions

Can a corner fireplace be used as a room divider?

The Room Definer (Peninsula) configuration is designed for exactly that — a visual and thermal boundary between zones without building a wall. The Left, Right, and Double Corner configurations install into corners against two walls and are not designed for freestanding room division.

What glass height should I choose for a corner fireplace?

It depends on ceiling height and what sits above the fireplace — artwork, a flat screen, or a structural ceiling element. A lower glass height leaves more wall plane above the flame; a taller glass creates a more immersive presence that can become a full-height architectural feature. As a rule, match the glass height to the visual weight you want the fire to carry.

What is a frameless corner fireplace?

A gas fireplace built into the corner of a room with no visible metal frame or trim around the glass, so the flame appears to meet the surrounding wall material directly. Flare’s frameless corner fireplaces wrap a single continuous linear flame across two adjoining glass faces for an uninterrupted, edge-to-edge view from two directions.

Can a corner fireplace be used outdoors?

No. Flare corner fireplaces are designed for indoor installation and are not rated for outdoor use. For an exterior wall or an indoor-outdoor threshold, a different configuration — a see-through model or a Flare outdoor fireplace — is the right choice. Confirm the model and rating with Flare at 1-866-639-1590 before specifying any exterior application.

Turn the corner into the centerpiece.