The Weller WPA2 Pyropen Professional Self-Igniting Cordless Butane Soldering Iron is a truly versatile tool that’s perfect for tackling soldering projects in those tricky or hard-to-reach spots. It’s an excellent choice for field work since it doesn’t need batteries, cords, or power to operate—just you and butane, which can be easily purchased separately!

Weller Pyropen
Thanks to its lightweight design, the Weller butane soldering iron is super portable, and its tank can hold enough gas to last around three hours. Plus, it’s impressive how quickly it’s ready to use! Although it’s advertised at 30 seconds, many customers report that the soldering tip heats up almost immediately, making your tasks even more efficient!
Features of the Weller WPA2 Pyropen Professional
Design – a portable butane soldering iron suitable for field work where power is not available
Ignition – ignition is via a button you need to push; customers have not documented any difficulties doing so. This makes the solder gun very convenient to use.
Portability – This is perhaps the most beneficial feature because the unit does not require cords, cartridges, or batteries. This is why the Weller butane soldering iron suits fieldwork well. It can also be included as an essential toolbox item.
Burn Time – is approximately 3 hours, which is plenty for small jobs that require versatility and portability.
Tank – is sturdy, albeit small, but holds enough butane for small jobs
Temperature – ranges from 482 Degrees F to 932 Degrees F and is adjustable
Country of Origin – Japan
Specifications
- Temperature range: 250°C to 500°C (482°F to 932°F) for soldering
- Up to 650°C (1202°F) for hot air function
- Wattage equivalent: 25W to 60W
- Run time: Up to 180 minutes (3 hours) per fill
- Supplied tips: WPT2 soldering tip, WCH51 hot blow tip
- 12.7 x 4 x 1.8 inches
- Weighs 4.8 ounces
- 1-year warranty
Performance:
- Rapid heat-up time allows for quick use in the field
- Adjustable temperature provides versatility for different soldering tasks
- Capable of handling both through-hole and surface mount soldering with appropriate tips
- Effective for heavy-duty soldering jobs due to high heat output
- Can be used for other applications like shrinking heat-shrink tubing or cutting nylon rope
- Precise temperature control allows for working on sensitive components
Additional notes:
- Refills with standard butane fuel (Weller WB1 or WB2 recommended)
- 14 different soldering tip combinations available for various applications
- Comes with a metal carrying case for protection during transport
- Made in Japan
Overall, the Weller WPA2 Pyropen is praised for its versatility, portability, and performance in field work situations where electrical power may not be available. Its dual-function capability and adjustable temperature make it suitable for a wide range of soldering tasks.
Pros
- Performs without issue
- Can use it pretty much right away, even though 30 seconds is recommended
- Can be used to solder 30AWG wire to large circuits such as 10AWG wire with lead free solder and the chisel tip that comes with the iron
- Quality build
- Plastic components are also good quality
- Very convenient to use
- Is portable and versatile
- Perfect for soldering electronic items
- Essential toolbox item
Cons
- Doesn’t come with a case and accessories
Verdict
Customers have shared some wonderful feedback about the Weller Pyropen Soldering Iron! They particularly love how quickly it gets ready for use, its portability, and how perfectly it works for soldering electronic items. The build quality is impressive, and it’s super convenient too! Although there aren’t a vast number of reviews, every single one reflects positive experiences with this solder gun, and it’s clear that the Weller brand represents top-notch quality.
A couple of customers mentioned the solder gun doesn’t come with a case and accessories; however, its functionality easily overcame this minor concern. To read more about what customers had to say, you can read their reviews here.
The Weller WPA2 Pyropen is available online and is eligible for free shipping if you qualify. You can check out the lowest price for it here. A majority of customers rated the Weller butane soldering iron high marks, even though it didn’t come with a case. Based on customer feedback, we are pleased to recommend it as a competitively priced and functional soldering iron.


