I don't use anything but a soldering iron. It's quick and I have better control. I take a hammer and flatten my solder out and put the flux in a bottle cap. I cut a very small piece of solder and set it in the joint and when it starts to melt I dip the solder in the flux and wipe it around the joint and take an old scribe, run it around the joint to get any bubbles out and it's done. I have a 300 and a 400 watt soldering iron that I've picked up for next to nothing at yard sales. I took the tip out and milled a slot in it, took another piece of copper and cut a slot in it, brazed them together and put the soldering iron in a vise, set the guard and blade on top of slot, solder them and let cool. Cleanup is easier for me this way. I read about this in one of Bob Engnath catalogs. That man sure passed out some good advice and did it with humor. Sure wish he was still here.
Tom