How to Use a Smith Little Torch

Written by c.l. rease
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How to Use a Smith Little Torch
Standard torches are bulky and difficult to transport. (torch image by Guy Verville from

Portable and convenient, a Smith Little torch uses small disposable fuel tanks to solder jewellery, crafts and small household projects. The disposable fuel tanks used with the Smith Little torch are inexpensive and readily replaced at your local home improvement retailer. As with any dual-fuelled torch, you need to safely operate, store and maintain your Smith Little torch. Failing to follow standard torch safety procedures increases the chances of burn injuries from fire or explosion.

Skill level:

Things you need

  • Safety glasses
  • Disposable oxygen cylinder
  • Disposable fuel cylinder
  • Adjustable wrench
  • Dishwashing soap
  • Squirt bottle
  • Clean rags
  • Striker

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  1. 1

    Put on your safety glasses.

  2. 2

    Push the regulator hose attached to the green hose and marked "oxygen" onto the disposable oxygen cylinder. Twist the oxygen cylinder counterclockwise to secure the regulator to the cylinder.

  3. 3

    Attach the regulator with the red hose to the disposable fuel cylinder.

  4. 4

    Remove the tip from the end of the Smith Little torch by turning the hex nut located at the base of the tip with the adjustable wrench.

  5. 5

    Close the red and green gas control knobs located near the top of the regulator handle.

  6. 6

    Move the connected Smith Little torch to a well ventilated area. Fully open the black regulator knobs attached to both the disposable oxygen and disposable fuel cylinders.

  7. 7

    Open the green "oxygen" knob, leave the oxygen to flow for two to three seconds and turn the green knob back to the closed position. Repeat the process with the red "fuel" knob.

  8. 8

    Reattach the tip to the torch handle.

  9. 9

    Mix one part dishwashing soap to four parts water in the squirt bottle.

  10. 10

    Pour the soap and water solution onto each connection between the disposable gas cylinders and the torch handle. If you notice bubbles emitting from any of the connections, turn off the black regulator knobs and check each connection for tightness before continuing.

  11. 11

    Turn the red "fuel" knob 1/8 of a turn, light the fuel with the striker and turn the "fuel" knob until you have a flame between 3 and 4 inches long.

  12. 12

    Slowly open the green "oxygen" knob until you have a white inner flame and a blue outer flame.

  13. 13

    Turn the green "oxygen" knob off before you turn the red "fuel" knob when you are turning off your Smith Little torch. When you are disconnecting the regulators from the fuel tanks, release the pressure from the gas lines with the red and green knobs located on the torch handle.

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