How to Choose a Glass Torch: The Complete Buyer’s Guide
The right glass torch depends on four things: what glass you work, what you make, how you’ll supply oxygen, and your budget for the whole setup — not just the torch. Get those four right and the specific model almost picks itself. This guide walks you through each decision the way someone who’s spent years on the supply side of this industry would talk you through it at the counter.
Why trust this guide? It’s written from 15 years running a leading borosilicate supply company, and it’s vendor-neutral: we’ll happily tell you when the cheaper torch is the smarter buy. Every spec we cite, we cite a source for — and we flag anything you should confirm with the manufacturer, because this is a hobby involving oxygen, propane, and a lot of heat.
Start here: the four questions that decide everything
- What glass will you work? Soft glass (soda-lime, ~104 COE) or borosilicate (“boro”/hard glass) — or both?
- What will you make? Small beads and detail, or pipes, sculpture, and bigger solid/tubing work?
- How will you supply oxygen? An oxygen concentrator, compressed tanks, or bulk — and how much can it deliver?
- What’s your real budget? For the system: torch + oxygen + fuel + regulators, hoses, flashback arrestors, eyewear, and ventilation.
Everything below expands on these.
Surface mix vs premix: the first fork in the road
Torches come in two flavors based on where the fuel and oxygen combine:
- Surface mix keeps oxygen and fuel separate until they leave the torch face, mixing and burning at the surface. The result is a quieter, gentler, highly adjustable flame that works beautifully across soft glass and boro, and is friendly to colors. GTT’s entire line is surface mix.
- Premix combines the gases inside the torch. The flame is hotter and faster (higher velocity), often cheaper, and noisier — historically the go-to for hard glass.
You’ll hear “premix for boro, surface mix for soft.” That’s outdated: the most sought-after boro and pipe-production torches today are surface mix (think GTT). The honest rule is: surface mix is the more versatile, more forgiving choice for most people, while premix can save money and suits some hard-glass workflows. (See our deep-dive: Surface Mix vs Premix Torches.) Sources: Lampwork Etc., The Crucible.
Match the torch to the glass and the work
| You mostly make… | In… | A good fit is… |
|---|---|---|
| Beads, small detail | soft glass | A gentle surface-mix torch (e.g., Carlisle Mini CC) or an affordable starter (Nortel Minor) |
| Mixed soft + small boro | both | A versatile mid torch (e.g., GTT Bobcat — known for running well on a single ~5 LPM concentrator) |
| Pipes, functional, sculpture | boro | A larger multi-stage surface mix (e.g., GTT Phantom / Mirage) |
| Large solids, tubing, production | boro/quartz | High-output multi-stage (e.g., GTT Kobuki) or scientific burners (Bethlehem) |
Specs above are starting points — confirm current models and numbers with the maker before buying. Sources: GTT, Mountain Glass torch guide.
Don’t skip this: your oxygen supply often decides the torch
This is where beginners overspend or get stuck. A torch is only as good as the oxygen feeding it. Bigger torches demand more oxygen (measured in liters per minute, LPM). If your supply can’t keep up, a powerful torch will run poorly.
- Oxygen concentrator(s) — pull oxygen from the air; no refills. Convenient and popular for home studios. You must match the concentrator’s LPM output to the torch’s appetite (the GTT Bobcat is popular partly because it runs well on a single ~5 LPM concentrator). Bigger torches may need two concentrators or tanks.
- Compressed oxygen tanks — high output, but you’ll handle refills, storage, and safety.
- Bulk / liquid oxygen — for serious production.
Rule of thumb: pick your oxygen reality first, then choose a torch that thrives on it. A modest torch that runs perfectly beats a monster that starves. Source: Mountain Glass. (More in Oxygen Concentrator vs Tanks for Lampworking.)
Fuel: propane or natural gas
Most setups run propane (portable, widely available). If you have natural gas plumbed to your space, some torches/regulators are configured for it — convenient, but confirm the torch supports it and get the correct regulator. Don’t mix up fittings or regulators between fuels.
Bench torch or hand torch?
Essentially all lampworking happens on a bench torch mounted in front of you — that’s how virtually every GTT torch is run, and roughly 98% of torchworkers never use anything else. Hand torches are an uncommon specialist setup used mainly for lathe work (spot-heating glass that’s turning on a glass lathe), plus assembly and offhand moves. Any GTT torch can be built in a hand-torch configuration, but nearly everyone — and every beginner — wants a bench torch.
Budget the whole system, not just the torch
A common mistake is blowing the budget on the torch and under-funding everything else. Plan for:
- The torch
- The oxygen system (often the biggest line item — concentrator(s) or tanks)
- Propane tank + regulator
- Flashback arrestors (both lines) and check valves
- Didymium / proper eyewear (essential for boro — it blocks the sodium flare and protects from IR)
- Ventilation suited to your glass and colorants
- Hoses, clamps, a stable bench
A capable starter setup is as much about the supporting gear as the torch itself.
Safety essentials (non-negotiable)
You’re combining pure oxygen, propane, and intense heat. Before your first flame:
- Install flashback arrestors on both the fuel and oxygen lines.
- Wear didymium or appropriate eyewear — especially for boro.
- Set up proper ventilation.
- Use the correct regulators, leak-check every connection, and keep oil/grease away from oxygen fittings.
- Secure your tanks.
This guide informs your decision; it does not replace the manufacturer’s instructions or advice from a qualified professional for your specific setup.
Quick recommendations by buyer
- Total beginner, soft-glass beads: a gentle, forgiving surface-mix torch (Carlisle Mini CC) or an economical starter (Nortel Minor). See Best Beginner Glass Torch.
- Beginner-to-intermediate, wants to do some boro too: GTT Bobcat — versatile and friendly to a single ~5 LPM concentrator.
- Pipe / functional maker: step up to a multi-stage GTT (Phantom/Mirage) as your oxygen supply grows.
- Production / scientific: high-output multi-stage or scientific burners; plan oxygen accordingly.
Key takeaways
- Decide glass type → what you make → oxygen supply → budget, in that order.
- Surface mix is the versatile, forgiving default; premix can be cheaper and suits some hard-glass work.
- Your oxygen supply often dictates the torch — choose a torch that thrives on the oxygen you’ll actually have.
- Budget the whole system, and never cut corners on safety gear.
Sources
- Glass Torch Technologies — https://www.glasstorchtech.com/ and https://www.glasstorchtech.com/triple-mix-torches
- Mountain Glass, “Best Torches for Lampworking or Glassblowing” — https://www.mountainglass.com/best-torches-for-lampworking-or-glassblowing
- Lampwork Etc., “Pre-mix vs Surface mix” — http://www.lampworketc.com/forums/showthread.php?t=191042
- The Crucible, “Lampworking/Flameworking tools & supplies” — https://www.thecrucible.org/guides/lampworking-flameworking/tools-supplies/
Editor’s note: model names and behaviors reflect public manufacturer/dealer info and community sources as of 2026; verify current lineups, specs, and prices before purchase.