GTT Mirage Glass Torch

The GTT Mirage is one of Glass Torch Technologies’ big-flame bench torches, a two-stage, 40-jet Triple Mix burner built around a Lynx-style center fire with two outer rings stacked around it: the 7-jet Lynx center plus 33 jets across the two rings. The result is a torch with high power across glass types: a fine, controllable flame at the center and the heat base to push well into large-boro and production work. It’s where the GTT line stops being a detail tool and becomes a serious production burner, while still keeping the family’s clean surface-mix behavior.

What the two-stage Triple Mix flame gives you

Triple Mix is GTT’s surface-mix technology: fuel and oxygen meet at the face of the torch, which keeps the mixing chamber cool and gives a clean, penetrating flame that drives heat into the core of thick glass instead of just washing the surface. Stacking two outer rings around a Lynx center lets the Mirage scale from a finer flame up to a wide, powerful one. To understand why that penetrating quality matters for heavy boro, read soaking vs penetrating flame, and for the underlying tech see GTT Triple Mix technology and surface mix vs premix torches.

The two stages are run separately. GTT’s instruction sheet for the Delta, Mirage and Phantom describes six valves, a red fuel, a green main oxygen and a blue secondary oxygen valve for each stage, and an optional foot pedal that switches the outer fire. The center is lit first: red alone to a yellow flame of about 7 inches, then green, then blue. With the center burning, the outer fire is lit from about 8 inches of yellow, adding green before blue; the sheet says the green valve stays on whenever the outer fire runs, and that running on red and blue alone is for the center fire only. That is orientation, not a procedure: the sheet’s own adjustment cautions apply, and GTT’s instructions for your torch take precedence over any summary here.

Who the Mirage is for

The Mirage is squarely an advanced torch for large borosilicate and production, makers building thick functional pieces and tubes who need a deep, repeatable heat base and don’t want to fight their torch for it. It isn’t a detail-only burner and it isn’t a beginner’s first torch. GTT’s bench pages give no numeric work capacity for the Mirage; its hand-torch page rates the Mirage hand torch for solid borosilicate up to 2.5 inches. If you’re weighing it against GTT’s bigger 57-jet Delta Elite, see the Mirage vs Delta Elite comparison.

Glass, fuel, and oxygen

The Mirage burns propane or natural gas with oxygen and is rated for high power across both soft glass and boro. GTT’s Flow Rate Chart, measured on propane at the largest usable flame, lists it at 10 psi fuel and 35 psi oxygen, and GTT’s instruction sheet for the Delta, Mirage and Phantom gives the same two settings. The sheet also names a minimum of 5 psi fuel and 10 psi oxygen and says the torch gives reduced results there, which is worth knowing before you size a regulator or an oxygen line for it. GTT also notes that natural gas burns roughly 2.5 times the propane volume; whether a house line can feed a torch this size is covered in GTT torches on natural gas. The trade for that output is appetite: this is a high-output two-stage torch, so it wants a substantial oxygen supply, realistically tanked oxygen or multiple concentrators rather than a single small unit. Our catalog carries a ~26 LPM reference converted from GTT’s flow table for the largest usable flame; size your supply to the flame you actually run and confirm with GTT. Start with how many LPM does my torch need.

Where it sits in the GTT lineup

The Mirage sits in the upper-middle of the range. Below it, the two-stage Phantom wraps a single 15-jet ring around the Lynx center for medium boro; the Mirage adds a second ring and the heat for large boro and production. Above it, the three-stage production burners (Delta Mag, and the larger Triple Mix torches) push further still, and the Delta Elite brings more jets still (57), standard as a bench torch with a separate hand-torch version. Because it’s built on the same Lynx center, the flame behavior you know from smaller GTT torches carries straight up.

What GTT sells

GTT sells the Mirage in five configurations: the standard 4-stud bench torch at $1,975, a compressed-air bench version, a bench torch with a variable switch, and a hand torch with or without an on/off switch. The version picker above the Specs section lists each one with GTT’s own name, its price as GTT’s pages showed it on 2026-10-06, and what GTT’s listing says about it; prices change, so confirm with GTT.

What ships in the box with each version is listed in the picker too. For oxygen, GTT describes running the center fire on a concentrator and the outer fire on tanked oxygen. Custom color adds $150 and 2 to 3 days. GTT gives no delivery date and notes that material availability can delay torches.

Before you buy

Budget for the whole system, not just the torch: an oxygen supply sized to a high-output torch, the correct propane or natural-gas regulator, flashback protection matched to your torch and gas supply, didymium or boro-rated eyewear matched to your glass, and serious ventilation. New to plumbing a torch this size? Start with the fittings, hoses & connectors guide and the glass torch safety setup guide, and think through oxygen concentrator vs tanks early. On the torch itself, GTT’s servicing page states a one-year warranty against factory defects that does not cover damage from improper use, misuse, or neglected maintenance; if you’re buying used, work through the used GTT torch checklist.

Editor’s note: spec details reflect GTT’s own materials. The catalog’s ~26 LPM oxygen figure is converted from GTT’s flow table for the largest usable flame (a ceiling, not a minimum), and current configuration details should be confirmed with GTT before purchasing.