Soldering tools include a heat source, such as a torch flux and soldering wire.
It's best to use lead-free solder when soldering pipes. No one wants lead in the water system.
There are several types of torches available. Get one that is easy to use like a torch that will clip onto a belt, freeing up a hand.
Wear safety glasses when soldering.
When heating up the pipe with a torch, watch for the pipe to change colors. That's how you know it's hot enough to start soldering.
Wipe away any dripping solder.