Toolipedia: Gas Torch
Toolipedia: Everything you wanted to know about gas torches
What is a Gas Torch?
A gas torch or blow torch is a torch that uses a fuel to heat objects. Propane and Map Pro (a type of propane) are the most common fuel sources for gas torches. Gas torches are used for a variety of jobs, the most common being soldering copper pipes. Gas torches are also used to loosen stuck and rusted bolts, remove air bubbles from epoxy finishes, strip non-leaded paint, activate shrink wrap and shrink tubing, weld certain materials, braze metal and even destroy weeds. Here are the basic parts:
- Fuel canister
- Torch flame adjustment knob
- Torch ignition lock and ignition button
- Torch burner tube
Plumbers uses this tool often, but mechanics and those who use specialized finishes may use this frequently as well.
How is a gas torch used?
- Slightly open flame adjustment knob
- Push ignition button in (this may need to be repeated several times)
- Adjust flame to appropriate size
- Heat up object
- (operation steps may vary depending on the type of igniter)
- Brazing nozzle
- Extended hose
- Heat shrink nozzle
- Weed and pest torch kit
- Flame spreader
- Replacement lighter flints
- Solder, Brazing rods, flux
- Wear eye protection
- Do not heat near fuel sources
- Do not store fuel canisters in excessive heat
- Disconnect head from canister when not in use
- Give time for the flame tube to cool before handling
- Do not torch items that may have lead in them
- Avoid using torch in confined areas
What are the different types of gas torches?
- There are a variety of different tips that can be purchased for different tasks
- Some older varieties do not have an automatic igniter and will need a striker to light the fuel
- Most are fueled by Propane or MAPP
- The size of the fuel tank can vary
What makes a good gas torch?
- Good igniter
- Ergonomic handle
Always us a flame protector cloth when soldering near flammable materials like wood. Buy one at amazon.