Real Fyre Carrera Marble G23 Fyre Spheres: white marble look spheres for a vent free fire
The Real Fyre Carrera Marble G23 Fyre Spheres is a vent free set of ceramic fire spheres. They have a white marble look with gray veining. Each sphere is 4 inches across, replacing logs for a modern 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 black marble? See the Real Fyre Nero Marquina G23 Fyre Spheres. The Real Fyre Carrera Marble G23 Fyre Spheres ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
Specifications
SKU: US4-18-CM | US4-24-CM
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 are Fyre Spheres?
A contemporary alternative to log sets: robust 4-inch spheres in a Carrera Marble finish, arranged on Real Fyre’s vent-free G23 burner so a dynamic flame pattern wraps and envelops them. Where generic fireplace balls are an accessory you add to some other burner, this is a complete designed set matched to its own.
Are the spheres safe sitting in the flames?
They are made for exactly that duty: engineered fireplace media designed to live inside the burner’s flame envelope, unlike decorative spheres that were never rated for fire. Give them the same respect as any hearth media, letting them cool fully before handling and keeping placement per the G23 instructions.
What set sizes are available?
Two: an 18-inch set (US4-18-CM) and a 24-inch set (US4-24-CM), sized to the matching G23 vent-free burner widths. Between them they cover the compact, modern fireboxes this contemporary look is usually specified for.
Do the spheres come in other colors?
The Carrera Marble finish here is the light, veined option. The same 4-inch spheres also come in Nero Marquina, Epic Black, and Graystone finishes, so you can match the fire feature to the room’s palette rather than designing the room around the fire.
Does a sphere fireplace still heat the room?
Yes. The G23 is a vent-free burner, so it runs damper-closed and returns its heat to the room instead of the chimney, and the ceramic-bodied spheres absorb and re-radiate warmth much as gas logs do. See the rest of the Real Fyre contemporary series for the burner and companion looks.
What kind of fireplace suits fireplace balls like these?
Modern and transitional rooms: linear fireboxes, minimalist surrounds, spaces where a log stack would feel rustic. The uniform geometry of 4-inch marble-finish spheres reads like sculpture in the flame, which is why the format keeps showing up in design-forward remodels.
Do I need anything besides this set?
Pair the spheres with the G23 vent-free burner in the matching width, since the flame pattern and placement are designed around it. From there it installs like any vent-free Real Fyre system: professional hookup, fuel chosen at purchase, and a local-code check before you commit.