The Jetboil will heat up water in less time than it takes to get a mosquito in your tent. And it comes with a handy tripod stand to help keep it from tipping over and igniting your gear on fire (not to mention saving you from the embarrassment of having to know how to put a fire out).
For fuel, the Jetboil uses these cheap (as in price) canisters that will last plenty long for a weekend outing.
The Jetboil also makes a great compliment to any home survival kit for use during a power outage or zombie apocalypse.