Serious about shaving weight? Take the frame out of your pack, cut the tags off your jacket, and get yourself the 3. 3oz Optimus Crux Lite Stove. This incredibly lightweight stove folds down to a super-compact size and comes with a stuff sack that fits in the hollow space under your butane canister. The Optimus Crux Lite Stove's 3000W output boils a liter of water in as little as three minutes, and a simmer knob lets you cook food instead of burning it.