24" G21 Vent-Free Glass Burner NG

Some fires are purely functional. This one is art. The Real Fyre 24" G21 Vent-Free Glass Burner (SKU: G21-GL-24-12) transforms any compatible fireplace into a captivating focal point, marrying the warmth of a genuine flame with the prismatic brilliance of glass media — no venting, no fuss, no compromise.

Built from 304 stainless steel, this burner is engineered for longevity and consistent, even performance. At 35,000 BTUs on natural gas (30,000 BTUs on propane), it delivers real, room-warming heat — not the kind you only feel when you're already standing close enough to toast a marshmallow. The 12 Series standing pilot system with piezo ignition makes lighting effortless, while the included On/Off remote control lets you command your fireplace from across the room, exactly as it should be.

Safety is built into the design, not bolted on as an afterthought. The integrated Oxygen Depletion System (ODS) continuously monitors air quality and automatically shuts off the burner if oxygen levels drop below safe thresholds — giving you beautiful ambiance and genuine peace of mind in the same package.

The G21 is designed for use with Peterson Real Fyre Fyre Glass, Fyre Gems, and Diamond Nuggets — approximately 10 pounds of certified decorative media dress the burner and catch the light in ways that will make your living room look significantly more intentional than it probably was before. Please note: only Peterson Real Fyre glass, gems, or decorative media certified for this burner should be used. Substituting uncertified media, parts, or controls will void the warranty — and frankly, why would you settle for anything less?

Installation is designed for flexibility. The G21 can be used in vent-free or vented decorative fireplace applications, provided your firebox meets the minimum clearance requirements: 28" front width, 21" rear width, 13" depth, and 15" height. At just 25 pounds and 10.5 inches front-to-back, it's a manageable, well-proportioned unit that fits cleanly into the firebox without dominating the installation process.

Available in 18-inch, 24-inch, and 30-inch sizes, the G21 series scales to your space. The 24-inch model strikes an ideal balance — generous enough to fill a standard firebox with presence, refined enough to let the glass media take center stage.

Whether you're upgrading a seldom-used traditional fireplace or finishing a new build with the kind of detail that guests actually notice, the Real Fyre G21 delivers the warmth, beauty, and reliability that a room — and its occupants — deserve.

• 24-inch vent-free burner crafted from durable 304 stainless steel
• 35,000 BTU output on natural gas; 30,000 BTU on propane
• 12 Series standing pilot with convenient On/Off remote control included
• Piezo ignition for simple, reliable, tool-free lighting
• Integrated Oxygen Depletion System (ODS) for automatic safety shutoff
• Compatible with Real Fyre Fyre Glass, Fyre Gems, and Diamond Nuggets (10 lbs required)
• Suitable for vent-free or vented decorative fireplace installations
• Compact 10.5" front-to-back depth for clean, flush installation
• Minimum firebox dimensions: 28" front width, 21" rear width, 13" depth, 15" height
• Lightweight at 25 lbs for straightforward installation and handling
• Also available in 18-inch and 30-inch sizes to suit your firebox
• Only use Peterson Real Fyre certified media and parts to maintain warranty coverage