If this is not a one time thing, you may want to look into a "resistance soldering" unit. Rigid makes this unit: https://www.ridgid.com/us/en/rt100-electric-soldering-gun This is one by a different company in use: https://www.youtube.com/watch?v=fd83YI6aoOM These things are really awesome...

Poland308 wrote:Pro press.
https://www.viega.us/en/products/innova ... press.html

Parker makes a version that will work for refrigeration as well.

Seen it but seems too pricey.

Why do you need flame free? With a carbon rod, you will have an arc, and most likely some sparks. For truly flame free, look at induction heating. but it ain't cheap. You can get a system for joining pipes with a special swage tool. Again, it's not cheap, as you need a different die for every pipe ...

Is it possible to use a carbon arc torch with a regular stick welder to braze copper water pipe? I need something that is flame-free to heat up a copper pipe and then braze it. The only carbon arc torches I've seen are used and cost $150! There's got to be a cheaper solution. The best alternative I'...