Yep...seems you need a blowtorch for all the "browning" methods. Good thing I ordered a bluing kit too :rolleyes
Though it seems the heating portion is only needed for the final step. I would imagine you could pull this off if you carefully used a good torch lighter...
http://www.laurelmountainforge.com/barrel_brown_inst.htm
Actually, I watched a demonstration video on the Blue Wonder site that showed how to use the product, and you needed a torch at one point for that one too...however, the guy said "If you don't have a torch, just use a hair-dryer".
So maybe it doesn't have to be quite as hot as they say? Could that apply to the "browning" as well as Blue Wonder?