GTT Lynx Glass Torch

The GTT Lynx is Glass Torch Technologies’ compact, single-stage detail torch, and quietly one of the most important torches the company makes. Its 7-jet, patented Triple Mix surface-mix head produces a tight, controllable pinpoint flame that’s a long-time favorite for detail and color work, and the very same Lynx “center fire” is the core GTT builds its larger multi-stage torches around. Learn the Lynx and you’ve learned the heart of the GTT lineup.

What the Triple Mix flame gives you

Triple Mix is GTT’s surface-mix technology: fuel and oxygen meet at the face of the torch rather than premixing inside it. The practical payoff is a clean, quiet, forgiving flame that’s gentle on colors and easy to dial from a soft setting down to a sharp point. The Lynx’s seven jets concentrate that into a precise detail flame rather than a wide soaking flame. For the full explanation, see GTT Triple Mix technology and surface mix vs premix torches.

Who the Lynx is for

The Lynx is aimed at detail and color work, beadmaking, and borosilicate, anyone who wants a precise, controllable flame more than raw heat. It’s typically described as an intermediate-to-advanced detail torch rather than a first burner; new lampworkers usually start cheaper and come to the Lynx when their work gets fine. If you want a wider, bushier general-purpose flame, compare the Lynx vs the Bobcat; if you want more flame for bigger work, see the Cheetah vs Lynx.

Glass, fuel, and oxygen

The Lynx runs soft (soda-lime) glass and borosilicate; GTT rates it for solid borosilicate up to 2 inches with its pinpoint flame. It burns propane or natural gas with oxygen. Our catalog carries a ~9.5 LPM oxygen reference converted from GTT’s Flow Rate Chart at the largest usable flame, where the chart lists fuel at 5 to 8 psi and oxygen at 10 to 15 psi (measured on propane; GTT notes natural gas burns roughly 2.5 times the propane volume, and GTT torches on natural gas covers house lines); confirm your oxygen supply delivers both the flow and the pressure your work needs before you buy. See how many LPM does my torch need and oxygen concentrator vs tanks.

GTT’s own Lynx instructions give a concrete starting point for regulator pressure: set the propane regulator to 5 to 8 PSI and the oxygen regulator to 15 to 25 PSI. Those are line pressures, not flow rates, they don’t tell you how many LPM the torch draws, which is why an oxygen concentrator still has to be matched to the work you actually do. The full setup and lighting sequence is in the Lynx instructions (PDF).

Dialing the flame: the red, green, and blue valves

The Lynx has three valves, and learning what each one does is most of the skill of running it. GTT’s instruction sheet lays it out clearly:

• Red valve, fuel. Light the torch on the red valve alone and get a roughly 7-inch yellow flame going.
• Green valve, main (outer) oxygen. This is the most important oxygen control: it keeps the torch cool and stops the flame burning back into the jet orifices. If the jets glow orange, or you see orange streaks in the blue flame, open the green valve a little more. Red and green together cover most beadwork.
• Blue valve, secondary (inner) oxygen. This focuses and sharpens the flame and gives it thrust; back it off (or close it) for a soft, brushy flame. Excessive hissing or crackling means the blue valve is open too far.

A few rules of thumb straight from GTT: for a soft, brushy flame use only red and green; for a small, very focused flame use only red and blue with the green off; for the hottest flame and the widest range of characteristics, use all three. Don’t run a soft, low, or short flame for long, it overheats the burner. To shut down, close the blue valve, then the green, then the red.

Bench or hand torch

The Lynx comes as a bench burner and as a separate hand torch. GTT sells three versions: the bench torch at $525, a compressed-air bench version and the hand torch. 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.

GTT’s hand-torch instruction sheet sets propane at 10 psi and oxygen at 25 to 30 psi, higher than the bench sheet’s 5 to 8 and 15 to 25 psi. The bench torch ships with the base, hoses, screened adapters, instructions and a cleaning kit; a marver, L marver and hose assemblies are sold separately, custom color adds $75 and 2 to 3 days, and GTT lists a $200 rack-and-pinion upgrade kit that fits the Lynx. GTT gives no delivery date and notes that material availability can delay torches. If you’re deciding between formats, see bench vs hand torch.

Where it sits in the GTT lineup

The Lynx isn’t only an entry into Triple Mix, it’s the center fire GTT builds its multi-stage torches around. Step up to a Phantom, Mirage, or the three-stage models and you’re essentially wrapping more fires around a Lynx-style core, so the flame behavior you learn here carries upward.

Before you buy

Budget for the whole system, not just the torch: oxygen (a concentrator or tanks), 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 ventilation. New to plumbing a torch? Start with the fittings, hoses & connectors guide and the glass torch safety setup guide. 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, including the Lynx instruction sheet (the regulator pressures above). The catalog’s ~9.5 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.