Weller Pyropen

The Weller Pyropen is one of the best portable soldering irons out there. I like them because I get almost an hour and half of heat, and I can move around — no cords. So, while I have an electric soldering station, I almost exclusively end up using this Weller, even when I’m near the station. I just find it easier. So, you switch it on, it lights the butane up, and it makes this cool high-pitched scream. And when it glows red, it's very hot. It heats up faster than an electric; it will reach full heat in about 30 seconds. I love these things.

-- Adam Savage


Weller Pyropen

Available from Weller


Note: According to a spokesman at the manufacturer, the Weller Portasol (PS100), previously reviewed on Cool Tools here, and the Weller Pyropen are nearly identical products. The Portasol is about half the price and has a slightly hotter max temperature and is made in Japan. The Pyropen is currently made in Ireland. Both are considered the same high professional quality. --KK


  1. I’ve been using the Portasol Superpro 125 for half a year and I love that thing.  I use it for electrics and making control cables or even small brazing jobs.

  2. I also have the Portasol SuperPro – also made by Weller.   (It’s a little too hot for delicate electronics, but great for the jobs where more heat is required.)

    It’s an obviously much better gas-powered soldering iron than the Pyropen: when the cap in on, I can pretend it’s a turned-off light saber.

    I could only find one photo on the ‘Net where the iron is closed.  So, I hope this is fair use:

      1. It depends on how you intend to use it.  I bought mine specifically for making control cables after borrowing a Snap-On branded iron pretty much identical to the Portasol to fix a broken clutch cable, and I am continuing to use the hell out of it for a variety of tasks.

      2. If you use a soldering iron frequently enough, then, yes, it is ten times better. It isn’t uncommon to spend three times as much (or more) on a professional soldering station. For simple jobs, the Fry’s model might get the job done, just like a doctor might be able to remove your appendix with a Swiss Army knife if it were enough of an emergency.

  3. Sounds like it’s running at what I would consider an unreasonably high temperature. I’m a firm believer that you can do what you want with power leads but nothing higher than about 25W-uncontrolled equivalent gets near semiconductors.

  4. I’m using a Dremel VersaTip equivalent at a much lower price and probably the same quality. Dremel don’t habitually make crap tools. It’s got a bunch of attachments and tips too.

    I bought it 2 years ago for around R499, which is about $58.

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