1: I use the stove part of my Crusader canteen set. if wind is really bad I'll bust out the HD aluminum foil I carry.

2: In mild weather it will boil water no problem with fuel left to spare. It's perfect for freeze dried food and instant oatmeal...those two things are the primary food I carry if I'm going on a hike. The crusader canteen holds 2 cups of water, perfect for a 2 serving bag of freeze dried goodness.