Intended use would have been a good thing to add- soldering wires from 10-20ga.
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One is allowed to have more than one, and for that range SHOULD HAVE.... JST nailed it, too. Go bigger, get in and get OUT fast. Do not dally and lift traces off a PCB, destroy insulation, nor cripple yerself with polymer fume fever, either.
I use SIX
different "irons" for that range (and smaller, clear down to # 60..).
An Antex needle-point, three Weller TC's of the 50 series with different tips in each, the oldest in black-case with exposed terminals.
At #12 to #10, its a Weller, not Weiler "gun" - 100 Watt or so, IIRC.
My old "field" take-with when traveling light to "parachute" in and sort a truant telco gateway switch or a server was a dual-voltage 120/240 VAC corded Taiwanese stick-type with a pushbutton "boost" mode.
Above 10 ga. I prefer to use a plumber's butane TORCH, then MAPP gas for the bigger-yet stuff.
It all scales according to how much copper is carrying heat away. Or NOT.
I get good joints, regardless.. but that came more out of first making a few BAD ones than which iron was to-hand.
"Practice joints" are allowed, too. Iron or Iron-plated tips are good. A moist sponge or such for wiping clean is
essential. Spend on high-grade solder, and more than one kind OF it, is well-worth it.