Real Fyre Epic Black G23 Fyre Spheres: matte black spheres for a vent free fireplace
The Real Fyre Epic Black G23 Fyre Spheres is a vent free set of ceramic fire spheres that take the place of logs. Each sphere is 4 inches across with a matte black finish. The simple round shapes suit a modern, minimal room. It is vent free, which means the burner burns clean enough to run with the damper closed, so the heat stays in the room. It still goes inside a real fireplace, and vent free logs are not allowed everywhere, so check your local code first. It comes in an 18 or a 24 inch set. Measure your firebox at the front, at the back, and front to back, and if you land between two sizes, take the smaller set.
The spheres are ceramic, made to sit in the flame, and the burner wraps its flame around them. The price is for the spheres only. On the page you pick natural gas or propane and add the G23 burner. You also pick how it lights: with an on and off remote, or with a remote that sets the flame height plus electronic ignition. A Fyreback, a steel panel that stands behind the fire, is optional. Prefer a quiet neutral gray? See the Real Fyre Graystone G23 Fyre Spheres. The Real Fyre Epic Black G23 Fyre Spheres ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
Specifications
SKU: US4-18-EB | US4-24-EB
Sphere Sizes
Set Sizes
Compatible Burner
Vent-Free Burner Sizes and BTU Ratings
BTU Rating = BTU x 1000
BTU Rating = BTU x 1000 (G8E-16″ = 20,000 BTUs)
FAQ
What kind of statement does the Epic Black finish make?
The boldest one in the Fyre Spheres line. Epic Black spheres read as pure matte-dark geometry until the G23 burner lights, and then the flame’s movement plays against that blackness for maximum contrast. It is the finish for monochrome palettes, minimalist rooms, and modern fireboxes where the fire should feel deliberate, not rustic.
How does a sphere set compare to traditional gas logs?
It swaps imitation for sculpture. A log set works hard to look like wood; the Epic Black spheres make no such pretense, just uniform 4-inch orbs enveloped by the G23’s dynamic flame pattern. You keep the vent-free convenience of gas fireplace logs while trading the campfire image for clean contemporary form.
Does it matter whether my line is natural gas or propane?
Not to the spheres, which are passive media and burn identically over either fuel. It matters for the G23 burner underneath, which Real Fyre builds for natural gas or propane at the factory with no field conversion. Confirm which fuel serves your fireplace before ordering the burner, and the Epic Black set takes its place either way.
Is there a right way to arrange the spheres?
Yes. Placement follows the G23 burner instructions rather than personal taste, because the burner ports are designed to send flame up through and around the spheres. Set the Epic Black orbs per the diagram, and resist the urge to reshuffle them; the enveloping flame pattern the set is known for depends on that layout.
Which set widths are available?
The Epic Black spheres come in 18 and 24-inch versions, US4-18-EB and US4-24-EB, with the G23 burner width chosen to match. Both are built from the same robust 4-inch spheres; the wider set simply fills a larger firebox. Between widths, size down so the flame pattern stays properly contained.
What separates Fyre Spheres from Fyre Glass and Fyre Gems?
Scale and presence. Fyre Glass and Fyre Gems are small-format media that pour across a burner as a glittering bed, while Fyre Spheres are individual 4-inch objects arranged as a composition. In Epic Black, that means bold graphic shapes standing in the fire rather than sparkle: a heavier, more architectural statement from the same contemporary vent-free family.
Where does ignition happen on a sphere set?
Lighting happens at the G23 burner, not the media. Follow the burner’s instruction manual for its pilot and control system, and have the initial setup done by the professional who installs the gas connection. Once commissioned, day-to-day operation is as simple as any vent-free hearth product, with the Epic Black spheres needing no attention at all.