Short answer: GTT’s own care advice is short, and most of it is about how you run the torch rather than how you scrub it. GTT ships cleaning wires or a cleaning kit with most of its bench torches, and its Lynx instruction sheet names two tools, a port cleaning wire and a burner face brush. The same sheet tells you to keep enough green outer oxygen on that the jet orifices stop glowing orange, to run some blue secondary oxygen on short flames so carbon does not build up in the injectors, and never to run a soft, low or short flame, which overheats the burner. It also says never to remove the screened hose adapters, never to get oil on the lines, and to secure the burner to the table. GTT publishes no home repair procedure in the documents we hold, and its sheet says removing factory installed components voids the warranty, so anything past cleaning is a call to GTT. For mounting, GTT’s bench torches sit on their own base with mounting holes and are clamped or bolted down; the larger models add rack-and-pinion adjustment, and the hand torches hang from a hook.
Everything below comes from GTT’s own instruction sheets and product pages. Where GTT is silent, this page says so rather than filling the gap with general torch advice. For how other makers describe cleaning and heat tint on the face, see our torch maintenance guide; for bench height, angle and hose routing on any torch, see torch mounting and bench angle.
What GTT puts in the box for cleaning
GTT’s wording differs from model to model, and on one model it differs between two of GTT’s own pages. As read on 2026-10-06:
| Model | What GTT lists for cleaning |
|---|---|
| Cricket | Cleaning wires |
| Bobcat | A cleaning kit on the model page, cleaning wires on the store page |
| Lynx and Cheetah bench torches | A cleaning kit |
| Phantom, Mirage and Delta Elite bench torches | A cleaning kit (the store listings also name a DVD) |
| Kobuki, Delta Mag, Ninja, Samurai, Cobra and Viper | A cleaning kit (the store listings also name a DVD) |
| Scorpion and Sidewinder | Not stated on the pages read |
| Hand torches | Not stated on the pages read |
What the kit holds is only partly documented. GTT’s Lynx instruction sheet ends with two labels, “Port cleaning wire” and “Burner face brush” (GTT Lynx instructions, PDF). Our copy of that sheet carries the labels and no written steps under them: no cleaning interval, no technique, no warning about wire size. We are not going to invent those steps. If you have a GTT torch and are unsure how to use the wire or the brush on it, ask GTT, whose sheet gives its phone number (570-835-9777) and address in Tioga, Pennsylvania.
One thing the warranty makes clear is that cleaning is your job. GTT’s servicing page says every torch comes with a one year warranty against factory defects, and its FAQ says that warranty does not include damage from improper usage, misuse, or neglect of maintenance. Keep the wires or kit that came with the torch; a torch bought used without them is worth asking GTT about before you clean it with anything else. The used GTT torch checklist covers what to look for in the ports and face of a secondhand torch.
Keeping carbon and heat off the face
The torch face is where neglect shows first, and GTT’s sheets treat it as a setting problem before a cleaning problem. Three rules recur across GTT’s instruction sheets.
Watch for orange glow at the jets. On the Lynx sheet, the green valve is “the main outer oxygen” and “the most important oxygen control” because it helps keep the torch cool and keeps the flame from burning too close to the burner jet orifices. If it is set too low, GTT says, the orifices glow orange and orange streaks can appear in the blue flame; the fix is to open the green valve a little more until the glow stops. When running short, sharp flames on the red and blue valves alone, the same sheet says to watch the burner jets and face for orange glow and add blue until it stops.
Run some blue on short flames. The Lynx sheet says that with candle lengths under 3/8 inch you should have some of the blue valve on so carbon does not build up in the injectors. GTT’s three-stage sheets for the Kobuki, Delta Mag, Ninja and Samurai carry the same 3/8 inch rule, as read on 2026-10-06. This is the most specific anti-carbon instruction GTT publishes, and it explains why a GTT that is mostly run small without the blue valve tends to come back sooty.
Never run a short, soft flame. The Lynx sheet says outright that running a soft, low or short flame will cause the burner to overheat, and tells you to keep the flame tight and focused except when silver fuming. GTT’s Cheetah sheet says the same and adds that the green valve stays on. The sheets for GTT’s two smallest torches put it as a minimum flame for beginners instead: the Cricket sheet says to avoid flames below about 4 inches until you are experienced, the Bobcat sheet says below about 5 inches, and both say to avoid running on a prolonged pilot. The Cricket sheet also says not to light it with a butane lighter. GTT does not give the reason for each of these in the reading we hold, so we report the rule without a mechanism.
Shutdown follows a set order on the Lynx sheet: blue valve off, then green, then red.
What not to do to a GTT torch
GTT’s warnings page, printed with the Lynx sheet, lists the habits that damage a torch rather than a person. In GTT’s words or close paraphrase:
- Never remove adaptors or any component with filter screens present. Removing the screens can let foreign material into the torch, damage the valve seats and clog internal components.
- Never get oil or grease on the lines or connections.
- Do not strike the torch with glass or another hard object; dents or damage can occur.
- Do not subject the torch to excessive heat or flame, including kilns, ovens and hand torches.
- Never touch the barrel or nozzle end while the torch is running, or for 15 minutes or more after.
- Use hose clamps or other approved connectors on the hose adaptors, and fix any leak immediately, however small it seems.
- Do not remove any factory installed components. GTT says failure to follow its directions and warnings voids the factory warranty.
The screened adapters deserve the emphasis GTT gives them. On the Lynx, Cheetah, Phantom, Mirage and Delta Elite, GTT ships 1 foot of 3/16 inch hose on each stud, and on its three-stage bench torches 2 feet, ending in screened barb adapters for standard 1/4 inch ID grade T hose. That screen is what GTT relies on to keep debris out of the valve seats, and swapping the adapters for generic fittings removes it.
Repair and service
GTT publishes no repair procedure for owners in the documents we hold: no valve rebuild steps, no jet replacement, no face resurfacing. What it publishes is the boundary. The servicing page carries the one year warranty against factory defects; the FAQ excludes improper usage, misuse and neglected maintenance; and the instruction sheet says not to remove factory installed components. Read together, a GTT that leaks at a valve, binds, keeps glowing after the oxygen is corrected, or has a jet that burns differently from its neighbors after cleaning is a torch to describe to GTT, not one to open at the bench.
We have not seen GTT state whether its warranty passes to a second owner, so a used buyer should ask GTT directly with the model and any paperwork.
Editor’s note: GTT’s product pages, store listings and instruction sheets were read on 2026-10-06 through an owner-supplied web read, because our own tools cannot reach glasstorchtech.com; the Lynx instruction sheet linked here is the copy we host. Box contents, accessory prices and warranty wording change, and GTT’s own pages sometimes disagree (the Bobcat’s cleaning kit and cleaning wires above). Your torch’s current instruction sheet and GTT’s answer take precedence over anything on this page.
Mounting a GTT bench torch
Every GTT bench torch arrives on its own base, and GTT’s instructions are clear that the base gets fastened down. The Lynx warnings say to secure the burner to the work table and to make sure the torch base and lines are anchored and secure, and GTT’s Scorpion instructions say to secure the base by clamp or bolts. GTT’s Scorpion sheet names both methods, so which one you use is your call.
What the base is, and what sits on it, depends on the model:
| Model | Base and mount, per GTT’s pages |
|---|---|
| Cricket, Bobcat | Stainless base with four table-mounting holes |
| Lynx, Cheetah | Powder-coated base with table-mount holes |
| Scorpion, Sidewinder | 2 or 4 studs; the Sidewinder costs the same either way |
| Phantom | 4-stud manifold on a powder-coated base; the store still describes a 2-stud version |
| Mirage, Delta Elite | 4 studs, powder-coated base, rack-and-pinion adjustment |
| Kobuki, Delta Mag, Ninja, Samurai, Cobra, Viper | 6 studs, rack-and-pinion adjustment, powder-coated base with mounting holes |
| Quadzilla | 8 studs on GTT’s Triple Mix index; base details not stated |
Studs. The stud count is part of the model, not a mounting accessory, and it decides how many supply lines you run. On the Sidewinder, GTT’s store says the 2-stud version shares one fuel and one oxygen supply, while the 4-stud version has separate supplies and takes an optional foot pedal for the outer fire. Count the studs before you buy hose and regulators.
Rack and pinion. GTT sells a $200 rack-and-pinion upgrade kit, with a larger base available for $75 more, and lists it as compatible with the Cricket, Bobcat, Lynx, Cheetah and the 2- and 4-stud Phantom. The kit contains an adapter gear, arms with the pinion gear assembled, and hardware. GTT does not publish the angle range it gives, and it does not publish a swivel or tilt range for any base we read.
Stands. GTT’s pages, as read, do not list a separate stand for any bench torch; the base is the stand.
Mounting a GTT hand torch
GTT’s hand torches hang rather than mount. GTT’s Lynx and Cheetah hand torches ship with 4 feet of 1/8 inch custom hose and an aluminum mounting block, take a repositionable hook for $35 extra, and come in neck lengths GTT gives as 6 to 18 inches or more, measured from the valves to the head. GTT does not describe how the mounting block is meant to be used on the pages read. The two-stage Phantom, Mirage and Delta hand torches, and the Lynx-center Sidewinder hand torch, list an adjustable hook hanger as standard with neck-length choices but no lengths given; on the Bobcat-center Sidewinder hand torch the hook is $35 extra. None of GTT’s hand-torch pages we read list a stand.
Related guides
- GTT torches, every model compared
- GTT hand torches: every model, price and option
- Torch maintenance and discoloration
- Torch mounting and bench angle
- Buying a used GTT torch: a model-specific checklist
Sources
- Glass Torch Technologies, Instructions for Lynx Torches and warnings (PDF), with our archived copy
- Glass Torch Technologies, Cricket instructions (minimum flame, no butane lighter; PDF)
- Glass Torch Technologies, Bobcat instructions (minimum flame; PDF)
- Glass Torch Technologies, Cheetah instructions (green valve stays on; PDF)
- Glass Torch Technologies, Scorpion instructions (clamp or bolt the base; PDF)
- Glass Torch Technologies, Kobuki instructions (the 3/8 inch blue-oxygen rule, shared by the Delta Mag, Ninja and Samurai sheets; PDF)
- Glass Torch Technologies, Servicing (warranty)
- Glass Torch Technologies, FAQ (warranty exclusions)
- Glass Torch Technologies, Rack and Pinion Upgrade
- Glass Torch Technologies, Cricket
- Glass Torch Technologies, Bobcat
- Glass Torch Technologies, Lynx
- Glass Torch Technologies, Lynx hand torch
- Glass Torch Technologies, Scorpion store listing and instructions
- Glass Torch Technologies, Triple Mix torches