GTT Ninja Glass Torch

The GTT Ninja is, in GTT’s own naming, a Phantom with a third fire. GTT lists it as the Ninja with Phantom Inner: a 7-jet Lynx center and a 15-jet Phantom middle, which together are the same 22 jets as a standalone Phantom, inside a 50-jet outer fire that GTT describes as two rings. That makes 72 jets on three stages, and it puts 50 of them, roughly seven in ten, in the outer stage. GTT places the Ninja between the Kobuki and the Delta Mag and describes its body as compact and easy to work behind.

A Phantom core with most of the jets outside it

The Ninja’s layout is the useful thing to understand before you buy one. With the outer fire off, you are running two stages and 22 jets, the arrangement the Phantom carries on its own. Light the outer fire and the torch more than triples its jet count. Its close sibling, the Samurai, reaches the same 72 jets the other way round, with a 40-jet Mirage core and a 32-jet outer fire, so the choice between them is a choice about how much of the torch sits in the inner fires. Per GTT, the Ninja is for workers who like the Phantom-size flame but want more heat behind it for fast melt-ins and production; our Ninja vs Samurai comparison works through that split, and Phantom vs Mirage covers the two cores on their own.

All three fires are GTT’s Triple Mix, a surface-mix design in which, in GTT’s description, oxygen surrounds the fuel and is also injected down the fuel stream through valves you control separately. The mechanism is the same on every Triple Mix torch and is explained in GTT Triple Mix technology.

Lighting and running the three fires

GTT’s instruction sheet for the Ninja and Samurai describes nine valves, a red fuel, a green main oxygen and a blue secondary oxygen for each fire; seen from behind the torch, the furthest group runs the center fire, the middle group the second fire and the closest group the third. It sets fuel at 15 psi and oxygen at 50 psi. You light the center first: red to about a 7 inch yellow flame, then green, then blue. The outer fires light with red to about 8 inches of yellow, and get green before any blue. On the Ninja that order has a practical meaning: the 50-jet third fire only runs with the Lynx center and the Phantom middle already lit, and the outer stages need their green oxygen on. Running on red and blue alone is for the center fire only, and with candles shorter than 3/8 inch GTT says to keep some blue on so carbon does not build in the injectors; our GTT cleaning and mounting guide collects GTT’s other care rules. Natural gas works too, at roughly 2.5 times the propane volume by GTT’s chart notes; see GTT torches on natural gas.

Versions and what ships with it

GTT sells the standard Ninja with Phantom Inner at $4,000, a version with GTT’s compressed-air option, and a Snub Nose Ninja with GTT’s new variable switch. The version picker at the top of the Specs section shows each with GTT’s own name and its price as GTT’s pages showed it on 2026-10-06. GTT’s compressed-air listing for the Ninja describes the same 72-jet layout as the standard torch; GTT specifies clean, dry air regulated to 60 psi or lower, and says the air lets you control flame temperature “while maintaining flame chemistry and flame type” (GTT compressed air and 4-Way Mix). The Snub Nose listing gives no jet count, stud count or box contents, so that is a configuration to confirm with GTT.

The standard Ninja sits on a powder-coated base with mounting holes, with six studs and rack-and-pinion adjustment, and ships with 2 feet of 3/16 inch hose, screened adapters for 1/4 inch ID grade T hose, the base, instructions and a cleaning kit, plus a DVD on GTT’s store listing. Custom color adds $200. GTT gives no delivery date and notes that material availability can delay torches.

Oxygen, glass and who it suits

GTT’s Flow Rate Chart has no Ninja row and GTT publishes no oxygen flow for it, so our catalog carries no oxygen estimate. What we can say is structural: with all three fires on, 72 jets are open, and this is tank or concentrator-bank territory, not a single small concentrator. Size the supply with GTT and start from how many LPM does my torch need. Our catalog lists soft glass and borosilicate for the Ninja, with its use in production, large boro and fast melt-ins, on propane or natural gas. It is an advanced, production-class burner rather than a first torch or a bead torch.

Before you buy

Budget for the system as well as the torch: oxygen for three stages, a regulator for your fuel (and an air source if you take the compressed-air version), the flashback protection your torch and gas supply call for, eyewear rated for the glass you work, and ventilation sized to a burner this large. The fittings, hoses and connectors guide and the glass torch safety setup guide cover the plumbing. 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 are buying used, work through the used GTT torch checklist.

Editor’s note: the Ninja’s layout, settings, versions and box contents come from GTT’s own pages and instruction sheet as read on 2026-10-06. GTT publishes no oxygen flow for the Ninja, and prices and configurations change, so confirm the exact setup with GTT before you buy.