Weller Pyropen WSTA3 Cordless Butane Soldering Iron
- Butane powered, no cord or battery
- 392 to 932 F adjustable
- 30 second heat-up
- About 3 hours per tank
- Butane sold separately
- 300 g, UL listed
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A cordless butane soldering iron for field service and repairs away from outlets. It ships without butane, so buy fuel alongside it.
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ASIN: B000ICGMQGModel: Pyropen WSTA3Category: Soldering Irons
Overview
Not a plug-in soldering station, the Weller Pyropen is a butane iron that runs anywhere with no cord, batteries or charging. It heats in seconds, the temperature adjusts across a wide range, and a metal tank holds hours of gas.
True portability for field repairs, from vehicles to rooftop wiring, is the reason to buy it. Adjustable heat covers fine electronics through heavier joints. Butane is not included and box contents beyond the iron are not listed.
Who it's for
Service techs, boat and auto electricians and installers working on site will use it most. Bench electronics work runs more steadily on a corded temperature-controlled station.
Pros and cons
- No cord, battery or charging
- Wide temperature range
- Long run time per fill
- Metal fuel tank
- Butane sold separately
- Tip options not listed
- Box contents not detailed
Performance notes
Tip temperature comes from a regulated butane flame heating a ceramic element, so wind and fuel level affect consistency. Larger joints draw more heat and need a higher setting. A full tank sets the session length before refilling.
Specifications
| Brand | Weller |
|---|---|
| Model | Pyropen WSTA3 |
| Dimensions & fit | |
| Item weight | 300 g |
| Capacity & performance | |
| Upper Temperature Rating | 932 F |
| Heating Element | Ceramic |
| Temperature range | 392 to 932 F |
| Power & efficiency | |
| Power Source | Butane |
| Construction & materials | |
| Handle Material | Metal |
| Included components | |
| Included Components | 1 Weller Branded Product |
| Other details | |
| Head Style | Pencil |
| Additional Features | Cordless |
| Heat up time | 30 seconds |
| Run time | About 3 hours per tank |
| Specification met | UL listed |
| Item Type Name | Tools |
| Specific Uses For Product | Professional |
| Style Name | Foldable UV/White Beam |
Frequently asked questions
Does the Weller Pyropen WSTA3 come with butane?
No. Butane is sold separately.
How long does the Weller Pyropen run on one fill?
The metal tank holds enough gas for about three hours of operation.
Is the Weller Pyropen a plug-in soldering iron?
No. It is butane powered and needs no cord, batteries or charge.
How hot does the Weller Pyropen get?
Temperature adjusts from 392 F to 932 F, and it heats up in 30 seconds.