Best plumbing torch for soldering copper pipe

Heat the joint, not the wall behind it.

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On this page
  1. The picks
  2. How hot
  3. Bernzomatic TS8000
  4. Bernzomatic BZ8250HT
  5. Bernzomatic TS4000
  6. Mag-Torch MT579C
  7. Side-by-side
  8. Torch and fuel by job
  9. Propane or MAP-Pro
  10. Upside down
  11. Flame types
  12. How to sweat a joint
  13. Solder and flux
  14. Safe torch work
  15. When it misbehaves
  16. What plumbers use
  17. Listing vs maker
  18. How to choose
  19. Questions
  20. How I pick

Quick answer

For most copper soldering, buy the Bernzomatic TS8000. Its swirl flame turns down for 1/2 in. pipe and runs hot on MAP-Pro. For tight or overhead joints, get the BZ8250HT hose torch. Keep a fire extinguisher close.

Bernzomatic TS8000 red cast body torch with trigger and black burn tube
Top pick: Bernzomatic TS8000 trigger start torch$57.98 at AmazonPrice as of Oct 24, 2026, 5:30 AM EDT
Check it on Amazon

The picks

Four torches for sweating copper, one pick per job. Each was the genuine brand, new and in stock on Amazon when I checked. Prices come from Amazon and show the time they were read.

Mag-Torch MT579C torch with swivel burn tube
Best for a swiveling burn tube

Mag-Torch MT579C

$59.99 at Amazon
Check it on Amazon
Price as of Oct 24, 2026, 5:30 AM EDT · low stock then
Details ↓

How hot the joint needs to get, and how hot each fuel burns

Every torch here burns far hotter than solder melts. The chart puts the copper industry’s working ranges next to Bernzomatic’s flame numbers, so you can see the gap.

Most soldering, per the CDA350 to 600°FBrazing filler metals, per the CDA1,100 to 1,500°FPropane flame in air, per Bernzomatic3,600°FMAP-Pro flame in air, per Bernzomatic3,730°FMost soldering, per the CDA350 to 600°FBrazing filler metals, per the CDA1,100 to 1,500°FPropane flame in air, per Bernzomatic3,600°FMAP-Pro flame in air, per Bernzomatic3,730°F
From the Copper Development Association’s Copper Tube Handbook and Bernzomatic’s TX9 and MG9 cylinder pages, read Oct 19, 2026.

The two fuels are only 130°F apart in open air. My call: the real difference on a job is how fast the joint comes up to heat, and that gap shows on 3/4 in. and 1 in. fittings. Bernzomatic points its MAP-Pro cylinder at soldering large copper pipe and at brazing.

The other number to know is 840°F. The CDA defines soldering as joining with a filler metal that melts below 840°F. Above that, it’s brazing, and the handbook prefers an oxy-fuel torch for it. None of the torches here are oxy-fuel.

The pick for most homes and jobs: Bernzomatic TS8000

Best for most copper soldering

Bernzomatic TS8000

Trigger start torch (DuraCast 8000)

TS8000 (now TS8000T)
$57.98
Check it on Amazon
Sold by Amazon.com · in stock · price as of Oct 24, 2026, 5:30 AM EDT
9.4Spec scoreHow it’s scored
Flame control10
Any angle10
Reach7
Warranty10
Ignition10

Pros

  • Adjustable ultra-swirl flame, per Bernzomatic
  • Pressure regulated for use at any angle
  • Instant on/off trigger and flame lock
  • MAP-Pro or propane cylinders
  • Limited lifetime warranty

Cons

  • Mounts on the cylinder, so it’s bulky in a tight bay
  • Manual still warns past 60 degrees of tilt
  • No hose option
  • Amazon and Bernzomatic use different names
Ultra-swirl flameFlame size knobTrigger startFlame lockMAP-Pro or propaneCast body

Buy it if

You solder 1/2 in. to 1 in. copper and want one torch that turns down for small fittings and runs hot on MAP-Pro for big ones.

Skip it if

Most of your joints sit behind a water heater or up in a joist bay. The BZ8250HT puts the flame on a hose.

This is the torch I’d point most people to for sweating copper. Bernzomatic now sells it as the DuraCast 8000, part TS8000T, and Amazon still lists it as the TS8000. It’s the same cast body torch, and the listing names Bernzomatic as the brand and Amazon.com as the seller.

The flame is why it’s my top pick. Bernzomatic calls it an adjustable ultra-swirl flame and rates the torch for large diameter soldering and light brazing. A knob on the body sets the flame size. My call: being able to turn the flame down matters on 1/2 in. fittings next to plastic or wood.

It lights with a trigger. Pull it and the flame comes on; let go and it goes out. A flame lock button keeps it burning for a long run of joints. Bernzomatic’s manual says to open the flame knob fully when you light it, to protect the ignition system, then turn it down.

It runs on Bernzomatic’s 14.1 oz MAP-Pro cylinder or its 14.1 oz and 16 oz propane cylinders. The torch is pressure regulated, which Bernzomatic says reduces pulsating or yellow flames when you turn it over. That’s what lets it work at any angle on a joint above your head.

There’s a limit, and it’s printed in the manual. Bernzomatic warns that tipping the cylinder more than 60 degrees from upright may cause the torch to flare. It recommends starting with a cylinder at room temperature and keeping the torch upright as much as you can. The regulator helps, and it doesn’t cancel that rule.

The body is cast metal, and it screws straight onto the cylinder. That makes it a large tool to hold in a cramped vanity or a stud bay. Bernzomatic backs it with a limited lifetime warranty for as long as you own it, on purchases made on or after June 1, 2016.

The manual’s after-use steps are worth learning on day one. Lock the trigger, close the flame knob, and take the cylinder off when you’re done. With the torch off the cylinder and pointed somewhere safe, pull the trigger to release the gas left inside.

My call: buy this one if you want a single torch for the whole house, from a 1/2 in. stub out to a 1 in. main. It was new and in stock, sold by Amazon.com, when I checked.

For tight and overhead joints: Bernzomatic BZ8250HT

Best for tight and overhead joints

Bernzomatic BZ8250HT

Reach hose torch with fuel holster

BZ8250HT, part 384398
$83.31
Check it on Amazon
Sold by Amazon.com · in stock · price as of Oct 24, 2026, 5:30 AM EDT
10Spec scoreHow it’s scored
Flame control10
Any angle10
Reach10
Warranty10
Ignition10

Pros

  • Torch head on a hose, cylinder stays on the floor
  • Fuel holster keeps the cylinder upright
  • Adjustable swirl flame and flame lock
  • Pressure regulated for any angle
  • Limited lifetime warranty

Cons

  • Hose length differs: 4 ft per Bernzomatic, 5 ft per the listing
  • More parts to check for leaks
  • Two pieces to carry
  • Hose must stay clear of the flame
Adjustable swirl flameHose with holsterTrigger startFlame lockMAP-Pro or propanePart 384398

Buy it if

Your joints are behind a water heater, under a sink, or up in a joist bay, where a cylinder on the torch won’t fit or would tip too far.

Skip it if

You solder mostly on a bench or at open stub outs. The TS8000 is one less piece to manage.

A hose torch solves the problem the TS8000’s manual warns about. The cylinder sits upright in a holster on the floor or a ladder step, and only the torch head goes into the tight spot. Bernzomatic calls the BZ8250HT its Reach Torch, part 384398.

Bernzomatic says the flame is an adjustable swirl, with a flame lock and pressure regulation for use at any angle. It rates the torch for small to large diameter soldering. The trigger lights and shuts off the flame, the same as the TS8000, so you can work one-handed with a roll of solder in the other.

The hose length is the one thing the sources disagree on. Bernzomatic’s product page lists a 4 ft hose. The Amazon listing says 5 ft. I’ve used Bernzomatic’s 4 ft figure in the tables, since it’s the maker’s number. Either way, it’s enough to reach a joint above a water heater from a cylinder on the floor.

My call: this is the torch for the joints people dread. A ceiling repair, a valve behind a tub access panel, a fitting right against a joist. With a cylinder screwed onto the torch, you’d be tilting it past 60 degrees. With a hose, the cylinder never leaves upright.

Test the cylinder fitting and both hose ends periodically with soapy water, valve open and flame off, in a ventilated area away from sparks and flames. Bubbles mean a leak: stop using the torch until repaired or replaced. Never use a flame to check for leaks.

Keep the hose clear of the flame and the hot fitting. My call: drape it over your shoulder or a joist rather than letting it hang near the joint. The manual also says the tip gets extremely hot during use, so set the head down on a level surface, pointed away from anything that can burn.

Bernzomatic covers the BZ8250 under the same limited lifetime warranty as the TS8000. It was sold by Amazon.com, new and in stock, when I checked. My call: if you only buy one torch and your house has a basement full of overhead copper, this one can be it.

One button and nothing to set: Bernzomatic TS4000

Best for a simple one-button torch

Bernzomatic TS4000

Trigger start torch (DuraCast 4000)

TS4000, part TS4000T
$47.79
Check it on Amazon
Sold by Amazon.com · in stock · price as of Oct 24, 2026, 5:30 AM EDT
8.6Spec scoreHow it’s scored
Flame control6
Any angle10
Reach7
Warranty10
Ignition10

Pros

  • Swirl flame, per Bernzomatic
  • No knob to set: pull the trigger and solder
  • Pressure regulated for any angle
  • Flame lock for long runs
  • Limited lifetime warranty

Cons

  • Flame size is fixed
  • Harder to go easy near plastic or wood
  • Mounts on the cylinder like the TS8000
  • Listing’s Made in America claim isn’t on Bernzomatic’s page
Swirl flameNo flame size knobTrigger startFlame lockMAP-Pro or propaneCast body

Buy it if

You want the simplest torch to light and put down, and most of your joints are 3/4 in. and up, where a full flame is what you want.

Skip it if

You solder a lot of 1/2 in. fittings near PEX, wiring or framing. The TS8000’s flame knob gives you more control.

The TS4000 is the TS8000 without the flame knob. Bernzomatic now sells it as the DuraCast 4000, part TS4000T. Its manual covers both torches and notes plainly that the TS4000 isn’t equipped with a flame adjustment knob. You get one flame size, and the trigger turns it on and off.

Bernzomatic calls the flame a swirl flame and rates the torch for large diameter soldering. It shares the TS8000’s pressure regulator, flame lock and any-angle design, and it takes the same MAP-Pro and propane cylinders. The manual’s 60-degree tilt caution applies to it too.

My call: the missing knob is a real trade. A fixed flame is fine on a 3/4 in. or 1 in. fitting, where you want all the heat you can get. On a 1/2 in. joint near a plastic valve body or a stud, you manage heat by distance and time instead.

There’s an upside to fewer parts. Lighting is one step. You don’t have to remember to open a knob fully before you pull the trigger, which is a step the TS8000’s manual asks for. For someone who solders a few joints a year, that simplicity is worth something.

The Amazon listing says Made in America. Bernzomatic’s own TS4000 page doesn’t say where the torch is built, so I’ve labeled that as a listing claim. What Bernzomatic does state is the warranty: the same limited lifetime coverage as the TS8000 and BZ8250 for purchases on or after June 1, 2016.

The manual adds a warning that matters for a torch without a knob. It says using the torch with a low flame can damage the burn tube and ignition system. My call: on a cold cylinder, the flame shrinks too, so warm the cylinder to room temperature first, as the manual suggests.

My call: buy the TS4000 if you want the plainest trigger torch from the same line as my top pick. If you’re torn, go with the TS8000, since the flame knob is the one feature you’ll miss. It was new and in stock, sold by Amazon.com, when I checked.

A burn tube that turns: Mag-Torch MT579C

Best for a swiveling burn tube

Mag-Torch MT579C torch with a 360° swivel burn tube

MT579C
$59.99
Check it on Amazon
Sold by Amazon.com · low stock · price as of Oct 24, 2026, 5:30 AM EDT
9.4Spec scoreHow it’s scored
Flame control10
Any angle10
Reach10
Warranty7
Ignition10

Pros

  • 360° rotating burn tube, per Mag-Torch
  • Adjustable ultra-swirl flame
  • Instant on/off ignition and flame lock
  • Pressure regulated for any angle
  • MAP-Pro or propane, 14.1 oz

Cons

  • Limited 1-year warranty
  • Mounts on the cylinder
  • Listing calls it the 360 Pro in one bullet
  • Instruction sheet not read for this page
Ultra-swirl flame360° burn tubeInstant on/offFlame lockMAP-Pro or propanePart MT579C

Buy it if

You want to point the flame up or sideways at a joint while the cylinder stays close to upright in your hand.

Skip it if

You want the longest warranty. The Bernzomatic torches here carry a limited lifetime warranty; Mag-Torch states one year.

The MT579C’s burn tube rotates, and that’s the reason it’s on this list. Mag-Torch calls it the MagFlame 360 Ultra Torch and lists a 360-degree rotational burn tube. You can turn the tube to aim the flame up at a joint while the cylinder stays close to upright in your hand.

That design goes after the same problem as the hose torch, a different way. Instead of moving the cylinder away from the flame, it moves the flame relative to the cylinder. My call: it’s handier than a hose for a joint you can see and reach, and a hose still wins when there’s no room for the cylinder at all.

Mag-Torch describes the flame as an adjustable ultra-swirl and says the torch works fast for large diameter soldering and light brazing. It has instant on/off ignition and a flame lock for continuous use. Mag-Torch also says it’s pressure regulated to reduce pulsating or yellow flames when inverted.

Fuel is the same as the Bernzomatic picks. Mag-Torch lists it as compatible with 14.1 oz MAP-Pro and propane cylinders, sold separately. The Amazon listing names Bernzomatic’s 14.1 oz MAP-Pro and its 14.1 oz and 16 oz propane cylinders. Any of those fit the CGA 600 connection Bernzomatic lists on its cylinders.

The warranty is the clear trade. Mag-Torch states a limited one-year warranty, and the listing repeats it: free from defects in material and workmanship for a year from purchase. That’s shorter than the limited lifetime coverage on the Bernzomatic TS8000, TS4000 and BZ8250.

One naming wrinkle. Mag-Torch’s page calls the MT579C the MagFlame 360 Ultra Torch, and one Amazon bullet calls it the MagFlame 360 Pro. The part number matches, MT579C, so I’ve used Mag-Torch’s name. Mag-Torch also makes the MT565C, a 360 torch whose page lists a swirl flame with no adjustment.

My call: buy it if you like the idea of aiming the flame without tipping the cylinder, and a one-year warranty is fine with you. It was sold by Amazon.com, new and in stock, when I checked.

All four, side by side

The features that decide which torch fits your joints, from the makers’ pages, manuals and the listings. Scroll sideways on a phone. Tap the warranty column to sort it on a desktop.

PickSpec scorePhotoFlameFlame size knobAny angleIgnitionReachWarranty (yr)Short pros / consBuy
Bernzomatic TS8000
Most copper soldering
9.4Bernzomatic TS8000Ultra-swirlYesYes, regulatedTrigger, flame lockOn cylinderLifetimeTurns down and up / BulkyCheck it on Amazon
Bernzomatic BZ8250HT
Tight and overhead joints
10Bernzomatic BZ8250HTSwirlYesYes, regulatedTrigger, flame lock4 ft hoseLifetimeCylinder stays upright / More fittingsCheck it on Amazon
Bernzomatic TS4000
Simple one-button torch
8.6Bernzomatic TS4000SwirlNoYes, regulatedTrigger, flame lockOn cylinderLifetimeNothing to set / Fixed flameCheck it on Amazon
Mag-Torch MT579C
Swiveling burn tube
9.4Mag-Torch MT579CUltra-swirlYesYes, regulatedInstant on/off, flame lock360° tube1Aim without tilting / 1-year warrantyCheck it on Amazon

From Bernzomatic’s DuraCast 8000, DuraCast 4000 and Reach Torch pages and its cast body torch manual, Mag-Torch’s MT579C page, and the Amazon listings read through the Creators API, Oct 19, 2026. Lifetime means Bernzomatic’s limited lifetime warranty, and it counts as the longest when you sort.

Start with the reach column. If your joints are mostly in the open, any of the cylinder-mounted torches works, and the TS8000’s knob is the feature I’d pay attention to. If they’re overhead or boxed in, the hose and swivel rows are the ones that keep the cylinder upright.

Which torch and fuel for which joint

This is the table I wish the top results had. Find your job on the left, and the row gives the torch, the fuel, and where the advice comes from.

JobTorchFuelSource or note
1/2 in. copper repair, open accessTS8000 turned down, or TS4000Propane or MAP-ProBernzomatic rates both for soldering; flame choice is my call
3/4 in. supply linesTS8000 or TS4000MAP-ProBernzomatic aims MAP-Pro at large copper pipe
1 in. water mainTS8000 or MT579CMAP-ProMy call: a swirl flame on MAP-Pro, with a long preheat
1-1/4 in. and up, soft solderAir acetylene, not a hand torchAcetyleneThe CDA lists acetylene or LP air-fuel torches for soldering; size is my call
Brazing copperOxy-fuel preferredOxygen plus fuelThe CDA prefers oxy-fuel; air-fuel sometimes on small sizes
Joint overhead or boxed inBZ8250HT hose, or a swivel tipEitherBernzomatic’s 60-degree tilt caution
Next to framing or insulationAny, with a heat shieldEitherBernzomatic manual: heat shield, extinguisher, water
Where open flame isn’t allowedNo torch: press or electric solderingNoneThe CDA names electric resistance tools and flared joints

Fuel and joining facts from the CDA’s Copper Tube Handbook sections 6 to 8 and Bernzomatic’s cylinder pages and torch manual, read Oct 19, 2026. Torch-to-size matches in the first four rows are my call.

The jump at 1-1/4 in. is my judgment call. The CDA says that for 1 in. tube and larger, it can be hard to bring the whole joint up to temperature at once. For brazing, it suggests a multiple-orifice tip and a second torch on larger fittings. A hand torch on a 14.1 oz cylinder is working hard at that size.

For bigger copper, an air acetylene rig is the usual step up. Our acetylene torch kit guide covers those. If you’d rather skip the flame on a big line, I’ve installed Viega ProPress, NIBCO Press and Apollo press fittings on real jobs, and ProPress vs brazing compares the two.

Propane or MAP-Pro, and the yellow vs blue cylinder

This is the most asked question on this search. Bernzomatic’s own cylinder pages answer most of it.

Propane (blue cylinder)MAP-Pro (yellow cylinder)
Flame in air, per Bernzomatic3,600°F3,730°F
Bernzomatic’s stated usesGeneral heating and solderingSoldering large copper pipe, brazing
Cylinder threadCGA 600CGA 600
Works in every torch hereYesYes
My call for 1/2 in. pipePlentyFaster, more to manage near plastic
My call for 3/4 in. and 1 in.Slow on a cold dayThe one I’d use

Temperatures, uses and CGA 600 thread from Bernzomatic’s TX9 propane and MG9 MAP-Pro cylinder pages, read Oct 19, 2026. The last two rows are my call.

So the yellow cylinder burns hotter, by about 130°F in open air. All four torches here take either one, so you can start on propane and switch. Bernzomatic’s manual adds one more reason MAP-Pro helps in winter. It says the flame gets smaller in cold weather and suggests warming the cylinder to room temperature before use.

Store spare cylinders the way the manual says. Keep them below 120°F, in a well ventilated area, and separate from the torch, with the torch taken off the cylinder when you’re done.

Can you run the torch upside down?

Overhead joints are where homeowners get into trouble. Here’s what each maker says about angle, side by side.

TorchMaker’s angle claimPressure regulatedWhat the manual adds
Bernzomatic TS8000Any angleYesTilting the cylinder past 60 degrees may cause a flare
Bernzomatic TS4000Any angleYesSame manual and 60-degree caution
Bernzomatic BZ8250HTAny angleYesThe cylinder stays upright in its holster
Mag-Torch MT579CAny angleYesThe listing points to its operating instructions
TurboTorch STK-99 (not a pick)Not statedRegulator in kitSwivel tip aims the flame instead
Bernzomatic WT2301 (not a pick)Designed for upright useNot statedPropane only, for small diameter soldering

Angle claims from each maker’s product page; the 60-degree caution is from Bernzomatic’s cast body torch manual for the TS4000, TS7000, TS8000, BZ4500HS and TS757. The WT2301 is in the table for contrast; Bernzomatic designs it for upright use.

Any angle and upside down aren’t quite the same thing. The regulator in the Bernzomatic and Mag-Torch picks reduces pulsing and yellow flame when the torch is turned over. Bernzomatic still recommends keeping it upright as much as you can. My call: for a joint straight overhead, a hose or a swivel tip is the safer setup.

Swirl, ultra-swirl and webbed flames

Makers describe their flames with their own names. Here’s what each one is sold for, in the makers’ words.

FlameTorchesMaker’s stated job
Adjustable ultra-swirlBernzomatic TS8000, Mag-Torch MT579CLarge diameter soldering and light brazing
Swirl, fixed sizeBernzomatic TS4000, Mag-Torch MT565CLarge diameter soldering
Adjustable swirlBernzomatic BZ8250HT, TS99TSmall to large diameter soldering
Extreme SwirlTurboTorch STK seriesHigh capacity industrial work, per the listing
WebbedBernzomatic WT2301Small diameter soldering, thawing, heat application

From Bernzomatic’s DuraCast, Reach, Swivel and Utility torch pages, Mag-Torch’s MT565C and MT579C pages, ESAB’s STK page and the TurboTorch listing, read Oct 19, 2026.

The MT579C’s listing says its ultra-swirl flame wraps around objects for faster heating. My call: that wrap is why swirl torches are the plumbing standard, since a fitting needs heat all the way around its cup. A webbed flame like the WT2301’s is a household torch for small jobs. Bernzomatic limits it to propane and small diameter soldering.

How to sweat a copper joint with any of these torches

These steps follow the Copper Tube Handbook, which is based on ASTM B828, plus Bernzomatic’s safety rules. They apply to every torch here.

  1. 1
    Drain the line and cut it square

    The CDA says soldering under wet conditions can be very difficult. I’ve used the RIDGID 152 tubing cutter for cuts like this.

  2. 2
    Ream to the full inside diameter

    The CDA says a burr left inside can cause erosion-corrosion. I’ve used the RIDGID 227S reamer for this step.

  3. 3
    Clean both surfaces

    Sand cloth or a fitting brush on the tube end and inside the fitting cup, down to bright copper.

  4. 4
    Flux thin and even

    The CDA says to brush a thin coat on both the tube and fitting as soon as you clean them.

  5. 5
    Assemble and support

    The handbook’s ideal gap is 0.004 to 0.006 in. Support the pipe so the joint can’t move while it cools.

  6. 6
    Heat the tube first

    Flame at right angles to the tube, so it carries heat into the fitting cup.

  7. 7
    Move to the fitting cup

    Sweep the flame between the cup and the tube, a distance equal to the cup’s depth.

  8. 8
    Touch the solder to the joint

    If it doesn’t melt, take it away and keep heating. Then feed it in at the base of the cup.

  9. 9
    Let it cool on its own

    The CDA warns that shock cooling with water may stress the joint. Wipe off flux with a wet rag once it’s cool.

The mistake I’d watch for is the one the CDA puts in a caution box: don’t overheat the joint or aim the flame into the face of the fitting cup. That burns the flux, and then the solder won’t enter the joint. If that happens, our page on why solder won’t flow walks through the fix.

Valves need their own care. The CDA says to follow the valve maker’s instructions for solder-cup valves. Our page on whether to solder a ball valve open or closed covers that, and a good flux brush keeps the flux where it belongs.

The solder and flux your torch is heating

A torch is only half the job. The CDA’s handbook sets the rules for what goes in the joint on a drinking water line.

RuleWhat the CDA saysWhat it means for you
Lead in potable waterOver 0.2% lead is banned for drinking waterBuy solder labeled lead free for water lines
Solder standardAlloys in Section 1 of ASTM B32’s Table 1 can be used on potable waterCheck the label for B32
Higher pressure or strength95-5 tin-antimony and alloys E and HBCommon lead free choices
Above 250°F continuousUse brazing filler metals insteadNot a hand torch job
FluxThin coat on cleaned surfaces onlyMore isn’t better; wipe residue after

From the CDA’s Copper Tube Handbook section 6, Fittings, Solders, Fluxes, read Oct 19, 2026. The lead rule comes from the 1986 amendment to the federal Safe Drinking Water Act. The red cell is a health and safety rule.

My call: read the solder label before you read the torch box. For a drinking water line, the two words that matter are lead free, and the CDA’s handbook names the ASTM B32 alloys that qualify. Old 50-50 tin-lead solder may still be allowed on some heating and drain work, where local codes permit it.

Soldering near wood framing without starting a fire

Bernzomatic’s manual is blunt about fire risk. These are its rules, sorted into before, during and after.

WhenBernzomatic’s ruleMy note
BeforeNever use the torch on or near combustiblesWet the framing or slide a heat shield behind the joint
BeforeHave a fire extinguisher and a bucket of water near the work areaWithin arm’s reach, not in the truck
BeforeWork only in well ventilated areas; not in a confined spaceThe torch uses oxygen
BeforeTest connections with soapy water; never with a flameValve open, flame off; ventilated area, no sparks or flames. Bubbles mean stop using it until repaired or replaced
DuringHeat can conduct to adjoining surfaces that may burnCopper carries heat a long way down the pipe
DuringUse a heat shield when necessary; don’t overheat surroundingsWatch the back side of the stud
DuringNever leave the torch unattended when litFlame lock off when you put it down
AfterRemove the cylinder when not in use; store them apartTorch cool before you take it off

Rules from Bernzomatic’s cast body torch manual (TS4000, TS7000, TS8000, BZ4500HS, TS757), read Oct 19, 2026. The red cell is the manual’s fire warning. The notes column is my call.

The rule that surprises people is conduction. Bernzomatic warns that heating one surface can heat an adjoining one that may burn. My call: after the last joint, wait a few minutes and check the framing and insulation near it before you leave the room.

Protect your eyes too. The manual says to wear safety glasses and protective gloves, and it lists a lens shade of 3 or 4 for brazing.

When the torch or the joint misbehaves

Forum threads on this search are full of these complaints. Here’s what the makers and the CDA say about each one.

ProblemLikely causeWhat to do
Flame pulses or turns yellow upside downCylinder tipped too farKeep it within 60 degrees of upright, per Bernzomatic, or use a hose
Flame is small on a cold dayCold cylinderWarm it to room temperature first, per Bernzomatic
Torch keeps going outLow flame, wind or a nearly empty cylinderSee why your torch keeps going out
Igniter clicks, no flameFlame knob not open (TS8000)Open it fully to light, per the manual, then turn it down
Solder balls up and won’t flowBurnt flux or water in the lineSee why solder won’t flow
Smell of gas at the fittingsA loose connectionShut it off. Test with soapy water; never a flame
Joint leaks after it coolsToo loose a fit or a dirty surfaceDrain, reheat, take it apart, clean and redo

Causes and fixes from Bernzomatic’s cast body torch manual and the CDA’s Copper Tube Handbook section 7. The “likely cause” cells are my call.

If the joint fights you every time, it may be the wrong joint for a torch. Water you can’t drain is the usual reason. The CDA says soldering under wet conditions can be very difficult and points to flared, press and push-connect joints instead. Our SharkBite vs soldered copper page covers when a push fitting makes sense.

What plumbers say they use

Google’s top result for this search is a Reddit thread. Here’s how the forum picks line up with this page.

Reddit’s top answer: Goss GP-600

The top reply in r/Plumbing’s torch thread names the Goss GP-600 for a tight adjustable flame and an igniter that always works. I couldn’t find a Goss spec page today, and its in-stock Amazon offers were from third-party sellers, so it isn’t a card here.

Plumbing Zone: TurboTorch STK-99

A poster in a Plumbing Zone upgrade thread likes the STK-99 for its size, self lighting and swivel head. It isn’t a pick here. ESAB’s page doesn’t state its warranty, flame control or tilt rating, so it scores under our 7.0 floor.

Contractor lists: Bernzomatic TS8000

A contractor insurance blog on page one calls the TS8000 one of the most popular torch kits with plumbing contractors. It’s my top pick, for its flame knob.

Facebook: get a MAP gas torch with a trigger

The top answer in a plumbing group’s torch thread is short: a MAP gas torch with a trigger. All four picks light with a trigger or an instant on/off button.

Two of the video results on this search pitch a butane torch and a cooking torch. My call: skip those for copper pipe. A butane pencil torch isn’t built to bring a 3/4 in. fitting up to heat, and the makers here sell their plumbing torches for propane and MAP-Pro cylinders.

Where the listings and the makers disagree

I check every listing against the maker’s documents. These didn’t line up, and here’s what I went with.

ProductOne source saysAnother saysI used
Bernzomatic TS8000 nameAmazon: TS8000 trigger start torchBernzomatic: DuraCast 8000, TS8000TSame torch; maker’s specs
Bernzomatic TS4000 nameAmazon: TS4000, part TS4000TBernzomatic: DuraCast 4000Same torch; maker’s specs
BZ8250HT hoseAmazon: 5 ft hoseBernzomatic: 4 ft hose4 ft, the maker’s figure
TS4000 originAmazon: Made in AmericaBernzomatic’s page: not statedLabeled a listing claim
MT579C nameOne Amazon bullet: MagFlame 360 ProMag-Torch: MagFlame 360 UltraMag-Torch’s name

The old version of this page also listed a MAP-Pro cylinder and Bernzomatic’s basic plumbing kit as picks. I’ve left them off. A cylinder is fuel, not a torch, and you can judge a torch more clearly on its own than inside a kit. The TS8000 and a 14.1 oz MAP-Pro cylinder cover what that kit did.

How to choose in four questions

QuestionIf yesIf no
Are most of your joints overhead or boxed in?Bernzomatic BZ8250HTKeep going
Do you solder 1/2 in. pipe near plastic or wood?Bernzomatic TS8000, for its flame knobBernzomatic TS4000 is fine
Do you want to aim the flame without a hose?Mag-Torch MT579CKeep going
Do you solder several days a week?Bernzomatic TS8000, with spare MAP-Pro cylindersBernzomatic TS4000

Most people land on the TS8000, and that’s the right call if you buy one torch. Add a 14.1 oz MAP-Pro cylinder, lead free solder, flux, a brush and sand cloth, and you’re set. Before your first joint, read our guide to a good deburring tool for copper pipe, since a reamed tube end is step two.

Questions people ask

What torches do plumbers use?

Mostly swirl flame hand torches on MAP-Pro or propane, plus air acetylene for bigger pipe. On trade forums, plumbers name the TurboTorch STK-99 and the Goss GP-600, and a contractor blog calls the Bernzomatic TS8000 one of the most popular with plumbing contractors.

What is the best plumbing torch?

My pick for most people is the Bernzomatic TS8000. It has an adjustable ultra-swirl flame, a trigger with flame lock, pressure regulation for any angle, and a limited lifetime warranty. For overhead joints, the BZ8250HT hose torch is the better fit.

Which burns hotter, yellow or blue Bernzomatic?

The yellow MAP-Pro cylinder. Bernzomatic lists its MAP-Pro flame at 3,730°F in air and its blue propane cylinder at 3,600°F. Both fit every torch on this page.

What is the best torch for sweating copper pipes?

A swirl flame torch, because the flame wraps around the fitting. The Bernzomatic TS8000 is my pick, since its flame turns down for 1/2 in. pipe and runs hot on MAP-Pro for 3/4 in. and 1 in.

Is propane hot enough to solder copper pipe?

Yes. The CDA says most soldering is done from about 350°F to 600°F, and Bernzomatic lists propane at 3,600°F in air. My call: MAP-Pro heats 3/4 in. and larger fittings faster, especially on a cold day.

Can you use a propane torch upside down?

Only one built for it, and with care. The Bernzomatic and Mag-Torch picks here are pressure regulated for any angle. Bernzomatic’s manual still warns that tilting the cylinder more than 60 degrees from upright may cause a flare. A hose torch keeps the cylinder upright.

Why won’t my solder flow into the joint?

Usually burnt flux or water in the pipe. The CDA warns that overheating, or pointing the flame into the face of the fitting cup, burns the flux so the solder won’t enter the joint. Drain the line, clean, reflux and heat the tube first.

Is it safe to solder near wood framing?

Only with precautions. Bernzomatic’s manual says never to use the torch on or near combustibles, to use a heat shield when necessary, and to keep a fire extinguisher and a bucket of water near the work area. Check the framing again after you finish.

Is a hose torch worth it?

If your joints are overhead or in tight spots, yes. The BZ8250HT keeps the cylinder upright in a holster while the torch head goes where you need it. Bernzomatic lists a 4 ft hose.

What solder should I use for drinking water pipes?

Lead free solder. The CDA says solders with more than 0.2% lead are banned for potable water systems under the 1986 amendment to the Safe Drinking Water Act. Look for alloys from ASTM B32’s Section 1 list.

How I picked these

Why trust me

I’m Isaac Daniels, a licensed journeyman plumber in Georgia (license #JP507711). Every spec here comes from the makers’ product pages, manuals and the Copper Development Association’s handbook, read the same day. The cutter and reamer I name in the steps are tools I have used.

How I pick

  • Only genuine brand torches, new and in stock on Amazon, checked through Amazon’s Creators API the same morning. The seller is named on each card.
  • Offers that were low on stock, out of stock or from look-alike listings were left out.
  • Specs from each maker’s own documents first, then the listing, and listing-only claims are labeled.
  • Each card’s spec score comes from the five checks below, built from the makers’ pages and manuals. Every pick scores 7.0 or higher; the TurboTorch STK-99 scored 6.6 and was dropped.
  • CPSC recall search for Bernzomatic, Mag-Torch, TurboTorch, ESAB and Worthington: no torch recalls. Worthington’s two recalls cover 20 lb propane exchange tanks and helium balloon tanks, not hand torches.

The spec score, check by check

Each check scores 0 to 10 and counts one fifth. It rewards a flame you can turn down, a regulator rated for any angle, a way to reach a joint without tipping the cylinder, a long written warranty and a trigger with a lock. It’s our score from the makers’ pages and manuals, not a customer rating or a heat test.

Check (weight)How it’s scored
Flame control (⅕)10 when the maker lists a flame size knob; 6 for a fixed flame; 5 when not stated
Any angle (⅕)10 when the maker says it’s pressure regulated for any angle; 5 when not stated
Reach (⅕)10 for a hose or a 360° burn tube that aims the flame without tilting the cylinder; 7 when it mounts straight on the cylinder
Warranty (⅕)10 for a lifetime warranty; 7 for one year; 5 when not stated
Ignition (⅕)10 for a trigger or instant on/off with a flame lock; 8 for self lighting without a stated lock
TotalAverage of the checks, to one decimal
PickFlame controlAny angleReachWarrantyIgnitionScore
Bernzomatic TS80001010710109.4
Bernzomatic BZ8250HT101010101010
Bernzomatic TS4000610710108.6
Mag-Torch MT579C1010107109.4

Sources

  • Bernzomatic DuraCast 8000 (TS8000T), DuraCast 4000 (TS4000T), Reach Torch (BZ8250HT), Swivel Torch (TS99T) and Utility Torch (WT2301) product pages (flames, uses, angle, hose length, warranties): bernzomatic.com, read Oct 19, 2026.
  • Bernzomatic cast body torch manual 447131 for the TS4000, TS7000, TS8000, BZ4500HS and TS757 (safety warnings, 60-degree tilt caution, lighting, storage, cold weather, limited lifetime warranty): bernzomatic.com.
  • Bernzomatic 14.1 oz MAP-Pro (MG9) and propane (TX9) cylinder pages (3,730°F and 3,600°F in air, uses, CGA 600): bernzomatic.com, read Oct 19, 2026.
  • Mag-Torch MagFlame 360 Ultra Torch MT579C and MagFlame 360 Torch MT565C pages (flame, 360° burn tube, fuels, one-year warranty): magtorch.com, read Oct 19, 2026.
  • ESAB TurboTorch STK Series Torch page (Extreme Swirl, 360° swivel tip, orifice screws, STK-R regulator, STK-99 product number 0386-0851): esab.com, read Oct 19, 2026.
  • Copper Development Association, Copper Tube Handbook sections 6, 7 and 8 (solder and flux rules, 840°F definition, 350°F to 600°F working range, heating steps, brazing temperatures and torches): copper.org, read Oct 19, 2026.
  • Amazon listings for Bernzomatic B0019CQL60, B00008ZA09 and B001OLVPOY, Mag-Torch B08VF8MPJ1 and TurboTorch B00INRZJ7G (titles, features, part numbers, sellers, stock): read through the Creators API, Oct 19, 2026.
  • r/Plumbing torch recommendations thread, Plumbing Zone torch upgrade thread, Wexford Insurance soldering torch post and the Plumbing Only Facebook group thread: seen in Google results Oct 19, 2026.
  • CPSC recalls (cpsc.gov) searched for Bernzomatic, Mag-Torch, TurboTorch, ESAB and Worthington: Oct 19, 2026.

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