Mapp Gas

Premium Mapp gas from Salvus and Firemaster, trusted by plumbers, mechanics, chefs and metalworkers for their high flame temperature and consistent performance.

Lead Welding Kit Fine Nozzle Blow Torch with 1 x 400g Mapp Gas
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Lead Welding Kit Fine Nozzle Blow Torch with 1 x 400g Mapp Gas

£54.99

Blowtorch Kit Salvus Turbo Torch Blow Torch Plus 2 x 400g Mapp Gas

Blowtorch Kit Salvus Turbo Torch Blow Torch Plus 2 x 400g Mapp Gas

£47.90

Salvus Mapp Gas Cylinder 400g x 6

Salvus Mapp Gas Cylinder 400g x 6

£36.99 (£6.17 each)

FireMaster 3 Blow Torch Kit with Firemaster 3 Torch and 2 x Mapp Gas Cylinders

FireMaster 3 Blow Torch Kit with Firemaster 3 Torch and 2 x Mapp Gas Cylinders

£48.99

Salvus Mapp Gas Cylinder 400g x 4

Salvus Mapp Gas Cylinder 400g x 4

£24.99 (£6.25 each)

Firemaster Mapp Gas 400g Cylinder x 24

Firemaster Mapp Gas 400g Cylinder x 24

£129.99 (£5.42 each)

Firemaster Mapp Gas 400g Cylinder

Firemaster Mapp Gas 400g Cylinder

£5.80

Salvus Mapp Gas Cylinder 400g x 2

Salvus Mapp Gas Cylinder 400g x 2

£12.50

£12.99
(£6.25 each)

Blowtorch Kit Salvus Turbo Torch Blow Torch Plus 1 x 400g Mapp Gas

Blowtorch Kit Salvus Turbo Torch Blow Torch Plus 1 x 400g Mapp Gas

£42.99

Firemaster Mapp Gas 400g Cylinder x 2

Firemaster Mapp Gas 400g Cylinder x 2

£11.00

£11.50
(£5.50 each)

Firemaster Mapp Gas 400g Cylinder x 6

Firemaster Mapp Gas 400g Cylinder x 6

£32.80 (£5.47 each)

Firemaster Mapp Gas 400g Cylinder x 4

Firemaster Mapp Gas 400g Cylinder x 4

£22.00 (£5.50 each)

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MAPP Gas Cylinders & Blow Torch Kits

MAPP gas is the high-heat blow torch fuel trades reach for when propane is too slow. Every MAPP gas cylinder we stock is filled with high-purity propylene – Salvus MAP-HTi is 99.5% pure and rated to a maximum flame temperature of 1,985°C – so copper joints come up to soldering heat faster, the flame holds steady in cold lofts and on winter sites, and the clean burn will not degrade your torch’s sealing rings or block the jet.

We supply Salvus and Firemaster MAPP gas bottles in the standard 400g size, from a single cylinder up to 24-cylinder trade cases, plus complete blow torch kits built around the Salvus Turbo Torch, the FireMaster 3, the Profire manual-ignition torch and a fine-nozzle lead welding torch. Every cylinder here uses the standard CGA600 1" connection, so it fits the torch you already own – and every torch we sell takes any of them. Trade prices, with same-day dispatch on orders placed before 1pm.

Not sure which cylinder fits your torch, or how many you will get through on a job? Get in touch and we’ll help you find the right part.

MAPP Gas – FAQs

What is MAPP gas?
MAPP gas is a high-temperature blow torch fuel based on propylene. The original methylacetylene-propadiene blend was discontinued years ago, so what is sold as MAPP gas today – including Salvus MAP-HTi and Firemaster – is high-purity propylene, which burns hotter and cleaner than propane and holds its pressure better in the cold.
How hot does MAPP gas burn compared with propane?
Salvus MAP-HTi is rated to a maximum flame temperature of 1,985°C in air, against roughly 1,950°C for propane. The headline gap is small, but propylene sits at a higher cylinder pressure and delivers more gas per second, so in practice it transfers heat noticeably faster – a 22mm or 28mm copper joint reaches soldering temperature quicker, especially outdoors in winter.
Which torches do your MAPP gas cylinders fit?
All our 400g cylinders use the CGA600 connection – the standard 1" US thread found on most trade blow torch heads. That includes every torch we sell: the Salvus Turbo Torch, the FireMaster 3, the Profire manual-ignition torch and the TLW lead welding torch, plus most popular MAPP and propane style torches you may already own.
What gas do your blow torches take?
All of them take any CGA600 threaded cylinder, so any 400g Salvus or Firemaster MAPP cylinder on this page will screw straight on. CGA600 propane cylinders fit the same heads too, if you would rather run propane for lighter work.
Can I use a Firemaster cylinder on a Salvus torch, or vice versa?
Yes. Both brands use the same CGA600 thread, so they are fully interchangeable across our torches – buy on price and pack size rather than matching brands.
Which cylinders will not fit a MAPP gas torch?
EN417 7/16" screw-on butane cartridges, self-sealing camping cartridges and puncture-type pierceable canisters will not fit a CGA600 torch head, and no adaptor should be used to force it. If the thread on your cylinder is not a 1" CGA600, it is the wrong fuel for the torch.
How long does a 400g MAPP gas cylinder last?
At a measured gas flow of 4g per minute, a 400g cylinder gives around 160 minutes of working time. That is roughly 5 hours across a 2 pack, over 10 hours across a 4 pack, around 16 hours across a 6 pack and about 64 hours across the 24-cylinder trade case.
Is MAPP gas hot enough for soldering and brazing?
Yes. MAPP gas is the usual choice for soldering copper pipe and silver brazing, and it handles heat treatment, freeing seized nuts and bolts, lead welding and roofing work. Paired with a swirl-flame turbo head it gives faster, more even heat than a plain propane flame.
Are MAPP gas cylinders refillable, and how should I store them?
No – they are non-refillable single-use cylinders manufactured to EN 12205. Store them upright in a cool, well-ventilated place away from heat and direct sunlight, never in a hot van cab or a sealed cupboard: the contents are extremely flammable and under pressure, so the cylinder may burst if heated.