American Fyre Designs Mariposa Vent-Free Fireplace, 67" GFRC

At 67 inches tall, the American Fyre Designs Mariposa makes no attempt to blend into the background — and that's precisely the point. This vent-free gas fireplace is constructed from GFRC (Glass Fiber Reinforced Concrete), a material that delivers the weight and presence of solid concrete without the structural compromises. The result is a fireplace surround that looks as substantial as it feels.

The 16-inch rectangle bullnose hearth gives the Mariposa a clean, architectural profile. The bullnose edge detail adds a softened, finished quality to what is otherwise a firmly contemporary silhouette — the kind of detail that reads as deliberate rather than decorative for its own sake.

Because this is a vent-free design, installation doesn't require routing a flue through your ceiling or wall. The fireplace operates on gas and is designed to function without an external exhaust system, which opens up placement options that a traditional vented unit simply can't offer. No chimney, no chase, no compromises on where you put it.

GFRC as a construction material deserves a moment of recognition here. It's not a shortcut — it's an engineering choice. The glass fiber reinforcement gives the concrete tensile strength it wouldn't otherwise have, making it resistant to cracking under the kind of thermal cycling a fireplace endures over years of use. The surface can be finished to a level of detail and texture that poured concrete rarely achieves at this scale.

The Mariposa is priced at $7,573, which reflects both the material quality and the manufacturing precision American Fyre Designs applies to each piece. This isn't a mass-produced insert — it's a cast, finished, and inspected surround built to anchor a room for decades.

Specific finish options, burner output ratings, and BTU data are not available in the current product specifications. We recommend contacting us directly for those details before purchase, especially if you're coordinating with an interior designer or contractor on a larger installation.

• 67 inches tall — a commanding, room-defining presence
• GFRC (Glass Fiber Reinforced Concrete) construction for durability and refined surface detail
• 16-inch rectangle bullnose hearth with clean architectural lines
• Vent-free gas operation — no flue or chimney required
• Thermal-cycle resistant material suited to years of regular use
• Flexible installation options without external exhaust routing
• Premium American Fyre Designs craftsmanship throughout