I am working on a 12"x 18" board that has multiple ground plane layers. I am trying to remove a through component that is tied to these ground planes. My 65 watt Hakko iron heats up the entire board but cannot deliver enough power to reflow the (unleaded) solder. I also tried a hot air gun, but that didn't seem to work much better. Obviously, I need something bigger, but how much bigger? I tried a Weller 300W gun, but it was too unwieldy to work with.
Hakko offers some 140W stations and JBC offers at 250W station, but they are both very expensive. I want to make sure to get the right thing if I am going to spend that much money.