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?

Operation basics

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)

Accessories available

Brazing nozzle
Extended hose
Heat shrink nozzle
Weed and pest torch kit
Flame spreader
Replacement lighter flints
Solder, Brazing rods, flux

Safety guidelines

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

Bernzomatic makes high quality gas torch.

Family Handyman

Avoid Fires

Always us a flame protector cloth when soldering near flammable materials like wood. Buy one at amazon.

Get more plumbing tips here.