30" G21 Vent-Free Glass Burner NG

Some fireplaces are built to heat a room. The Real Fyre 30" G21 Vent-Free Contemporary Glass Burner is built to stop a conversation. Finished in a striking polished mirror and constructed from durable 304 stainless steel, this burner transforms your firebox into a modern, luminous focal point that earns its keep every time it's lit — and honestly, even when it isn't.

With a robust 40,000 BTU output on natural gas (35,000 BTU on propane), the G21 delivers genuine, room-warming heat without a flue, chimney, or exterior venting. Vent-free technology means more of that heat stays exactly where you want it — in the room with you. The built-in Oxygen Depletion Sensor (ODS) continuously monitors air quality and automatically shuts the burner off if oxygen levels drop, so you can relax in comfort with complete confidence.

Ignition is handled by a dependable piezo ignition system paired with a standing pilot, and the included basic On/Off remote control means you never have to leave your favorite chair to adjust the ambiance. The pre-assembled control valve makes installation clean and straightforward — a thoughtful touch that installers will appreciate.

At the heart of the G21's visual drama is its glass media presentation, requiring 15 lbs of certified Real Fyre glass media. Choose from a curated palette of Fyre Glass colors — Azuria, Black, Bronze, Caribbean Blue, Clear, Emerald, Sapphire, and Star Fyre — or add depth and dimension with Fyre Gems, available in Blue Topaz, Ruby, Deep Amber, Champagne, Emerald, Sapphire, and Glacier. Each piece catches and refracts the flame in ways that genuinely have to be seen to be believed.

Installation requires a minimum firebox width of 34 inches at the front and 28 inches at the rear, with a minimum depth of 13 inches and height of 17 inches. The burner itself measures 10.5 inches deep and weighs 30 lbs — substantial enough to feel like the quality investment it is.

The G21 is ANSI certified and engineered exclusively for use with Real Fyre gas logs, valves, controls, and accessories. Using non-certified components will void all warranties and certifications — so stick with the ecosystem and enjoy every BTU with peace of mind.

Whether you're completing a new build, upgrading an existing fireplace, or simply ready to stop settling for ordinary, the Real Fyre G21 Glass Burner is the contemporary hearth statement your living space deserves.

• 30" contemporary vent-free glass burner in polished mirror 304 stainless steel
• Up to 40,000 BTU (natural gas) or 35,000 BTU (propane) for genuine room-warming heat
• No venting or chimney required — vent-free design keeps heat in the room
• Built-in Oxygen Depletion Sensor (ODS) for automatic safety shutoff
• Piezo ignition with standing pilot for reliable, effortless starting
• Includes pre-assembled control valve and basic On/Off remote control
• Compatible with 8 Fyre Glass colors and 7 Fyre Gems colors (15 lbs media required, sold separately)
• ANSI certified for safety and performance
• Minimum firebox requirements: 34" front width, 28" rear width, 13" depth, 17" height
• Engineered exclusively for use with Real Fyre logs, valves, and accessories
• Available in natural gas or propane configurations