Sierra Flame Lyon 48″ 4-Sided See-Through Gas Fireplace
$12,999.00
The Sierra Flame Lyon 48″ 4-Sided Gas Fireplace brings a completely different approach to the traditional fireplace. Designed to provide a 360-degree view of the flames, the Lyon can connect adjoining spaces while creating an impressive architectural focal point from multiple directions.
With its four-sided, see-through design, the Lyon 48 can be used to visually connect rooms, create separation between living areas, or make a dramatic centerpiece in a custom home. The fireplace features double-wall glass with no external safety screen, giving you a clean, unobstructed view of the fire.
The Lyon is also designed with a streamlined installation in mind. Its technology is contained within the fireplace, eliminating the need for visible louvers, a heat dump, or gaps in the surrounding wall. The result is a clean finished appearance that works especially well with contemporary and modern interior designs.
Item Details
360-Degree See-Through Fireplace Design
The Lyon is more than just a gas fireplace. Its four-sided see-through design provides views of the fire from virtually every angle, making it an excellent option for open-concept homes and spaces where the fireplace needs to be appreciated from multiple rooms.
Use the Lyon to create a striking room divider between a living room and dining area, connect two adjoining spaces, or create a dramatic freestanding-style fireplace installation.
Lyon 48 Viewing Areas
Front Viewing Area: 15.34″ H x 45.16″ W
Side Viewing Area: 15.34″ H x 13.40″ W
Clean, Screen-Free Glass
One of the defining features of the Lyon is its Clear View double-wall glass technology. Unlike many gas fireplaces that require a visible mesh safety screen, the Lyon is designed without an external screen, providing a much clearer view of the flames.
The double-glass design also incorporates Sierra Flame’s Warm Glass System, which helps keep the exterior glass temperature below the required safety standard while allowing radiant heat to enter the room.
The result is a cleaner fireplace appearance without sacrificing the safety features built into the fireplace design.
No Louvers. No Heat Dump. No Visible Gaps.
The Lyon was engineered to keep its ventilation and heat-management components contained within the fireplace.
No Intake or Exhaust Louvers
The surrounding wall remains clean and uninterrupted without visible intake or exhaust louvers.
No Heat Dump
The Lyon does not require vents behind the wall to release built-up heat.
No Gap
The installation does not require a visible gap at the top of the fireplace wall to provide an escape path for heat.
These design features make the Lyon particularly appealing for projects where the finished fireplace needs to blend seamlessly into the surrounding architecture.
Designed for Easier Installation
The Lyon 48 is designed around a straightforward installation process with the fireplace technology contained within the unit. All-wood framing can be used, and concrete board or metal studs are not required according to the manufacturer’s installation design.
The fireplace can also be finished with combustible materials around the fireplace within the manufacturer’s specified installation requirements. Always follow the current installation manual and required clearances for your specific project.
32,500 BTU Gas Fireplace
The Sierra Flame Lyon 48 provides up to 32,500 BTUs on high and approximately 21,000 BTUs on low, allowing you to adjust the fire to suit the room and the occasion.
The realistic flame becomes the centerpiece of the space while providing the warmth and ambiance expected from a gas fireplace.
Key Features
- 4-sided see-through gas fireplace
- Full 360-degree flame viewing
- 48-inch fireplace size
- Double-wall glass
- Screen-free viewing
- Warm Glass System
- Up to 32,500 BTUs on high
- Approximately 21,000 BTUs on low
- No visible intake or exhaust louvers
- No heat dump required
- No gap required at the top of the fireplace wall
- All-wood framing design
- Concrete board not required according to manufacturer specifications
- Combustible finishing around the fireplace within specified installation requirements
- Easy-clean glass removal system
- No technician required for routine cleaning of the interior glass
- Designed for contemporary, modern, and custom home applications
Sierra Flame Lyon 48 Specifications
Model: Lyon 48
Type: 4-Sided See-Through Gas Fireplace
Viewing: 360-degree
Front Viewing Area: 15.34″ H x 45.16″ W
Side Viewing Area: 15.34″ H x 13.40″ W
Maximum Input: 32,500 BTUs
Low Input: 21,000 BTUs
Glass: Double-wall glass
Safety Screen: None
Framing: All-wood framing
Venting: 5″ & 8″ venting options
Fuel: Natural Gas
Optional Accessories
- Gen Term Kit – Termination Kit – 5″ & 8″ Venting
- TTRK 5&8 – Duravent 5-Piece Through-the-Roof Kit
- TTRK 5&8-S – Duravent 5-Piece Through-the-Roof Kit for Steep Roofs
Why Choose the Sierra Flame Lyon?
The Sierra Flame Lyon 48 4-Sided Gas Fireplace is a great choice for projects where the fireplace needs to be more than a traditional wall-mounted feature. Its four-sided design allows the fire to become part of the architecture, providing views from multiple rooms and creating a natural connection between spaces.
The combination of 360-degree viewing, screen-free glass, clean wall finishes, no visible louvers, and powerful gas heat makes the Lyon especially well suited for custom homes, modern interiors, open-concept spaces, and projects where design and functionality are equally important.
At Crackle Fireplaces, we work with homeowners, designers, builders, and contractors to help find the right fireplace for each project. If you’re considering a four-sided or see-through gas fireplace and aren’t sure which configuration will work best, we’re happy to help you compare your options.
Downloads:
Lyon Sierra Flame Gas Brochure
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