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Silver butane soldering iron kit in steel case

Master Appliance

Master Appliance UT-100SI Self-Igniting Butane Soldering Iron Kit

SKU CH-YRGB-XFG65

A self-igniting butane soldering iron kit delivering 20–80 W equivalent power, 932 °F tip temperature and 120-minute run time in a steel storage case

  • Product typeSoldering Accessories
  • Self-igniting convenience with no external lighter needed
  • Adjustable power from 20 W to 80 W electric-equivalent output
  • Soldering tip reaches 932 °F for strong joints
  • Torch mode hits 2,500 °F for brazing and heat-shrink work
  • Runs up to 120 minutes on a single butane fill

Ultratorch UT-100SI Self-Igniting Kit

The Master Appliance UT-100SI is a self-igniting butane tool that works as a soldering iron, a flameless heat tool and a torch. It suits technicians and hobbyists who need portable heat without a power outlet. The kit includes a steel storage case, an ejector and a sponge for tip maintenance.

Interchangeable Tips Expand Functionality

A 3.3 mm chisel tip handles general soldering up to 932 degrees F, matching a 20 to 80 watt electric iron. A hot-air tip reaches 1,202 degrees F for heat-shrink work, while the torch mode delivers up to 2,500 degrees F. One butane fill provides up to 120 minutes of run time across all modes.

For Field Repairs Without Mains Power

This kit suits anyone who needs soldering, hot air or an open flame away from a bench supply. It is not for users who require continuous operation beyond two hours per fill, precise temperature control below 20 watt equivalence, or a fixed-station tool with mains-powered consistency.

How it compares

Measured against everything we stock in Soldering Irons & Stations, at today’s prices. Recalculated every night.

Price $105.99
Pricier than about 84% of the 802 comparable items (median $25.99).

Specifications

Product
Brand nameMaster Appliance
Product typeSoldering Accessories

Questions about this item

How often will the butane tank need refilling during a full work session?

The iron runs up to 120 minutes on a single fill, so plan a refill after roughly two hours of continuous use.

Which temperature ceiling will be reached first when the tool is pushed hard?

The torch tip hits its 2,500 °F limit well before the solder tip tops out at 932 °F.

How hot does the body get and how loud is the flame after hours of operation?

The flame produces a quiet hiss; the metal barrel becomes very hot at the tip end, so use the stand and allow cool-down breaks during all-day jobs.

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