That's probably how they used to solder before electricity  

 quite certain of it. it made me start looking for an old soldering iron. 🙂 

 time to solder pre electricity electrical wires the old fashioned way 😆 

 I've done that as well. Not for soldering though. 

 I love the ingenuity. 

 I bought a portable butane iron from Radioshack like 18 years ago. It's packed away somewhere but I use it when I need to solder big stuff like 10awg+ wires or just don't have electric where I'm working like when working on cars and such.  

 That’s the one that stopped working 🤷 

 Ah crap that ones my backup! Uh I guess I'd have to break out the acetylene, good looking nail, and some vice grips. XD 

 Actually though, a Radioshack butane iron? I thought i was the only on on earth that still used one  

 Actually it was a German Dremmel brand butane iron. Very expensive replacement parts. 
Very fiat.