BernzOmatic St250k Instructions

Written by alex heath
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BernzOmatic St250k Instructions
BernzOmatic produces hand-held torches and accessories. (torch image by Guy Verville from

BernzOmatic produces handheld gas-burning torches for soldering, brazing and similar work, offering a DIY alternative to expensive contracting. The ST250K Micro Torch Kit consists of a ST200 micro torch and six adjustable tips: a basic micro-torch, a hot knife tip, a chisel tip, large and fine soldering tips, and a hot air blower. The flame strength is adjustable. Although not as powerful as larger, professional-grade torches, this is a versatile tool for small home improvement jobs.

Skill level:

Things you need

  • BernzOmatic Torch Kit with owner's manual
  • Butane tank
  • Safety glasses

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  1. 1

    Read the owner's manual and familiarise yourself with the tool and safety instructions before you begin using it.

  2. 2

    Attach the torch tip to the tank, making sure that the seal is tight and that no gas is escaping. The ST200 requires a BernzOmatic butane cylinder, and you should not attempt to use an alternative fuel.

  3. 3

    Attach your chosen tip according to the manual instructions; it simply screws on to the torch. Make sure it is tightly attached.

  4. 4

    Put on the safety glasses, point the torch away from your face and light. The ST200 has an inbuilt ignition, so you don't need a separate sparker. Turn the gas valve all the way on, press down on the trigger safety button and click the trigger.

  5. 5

    Adjust the flame power using the flame control knob on the side of the torch. Check the owner's manual for specific instructions on the tip you are using and the task being performed. To solder, you need to use a low flame setting and hold the torch tip very close so the solder is in the blue core of the flame. To shrink wrap wires using the hot air blower, you can turn up the heat and hold the tip farther away.

  6. 6

    Turn off the flame by turning the gas valve completely off when you are finished using it. For safety reasons, you should disassemble the torch from the gas cylinder and remove the tip once it has cooled down. Store in a cool dry place away from children.

Tips and warnings

  • Ensure that you use the torch in a well ventilated area, and avoid any fumes from metal heating.
  • Be careful using the torch on windy or sunny days. Direct sunlight can make the flame hard to see, and wind can carry the heat from the flame toward areas not intended to be heated.
  • Be aware that the tip will get extremely hot during use, so take precautions to avoid burns and keep away from any flammable materials during and immediately after use.

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