THE WORLD&';S FASTEST, MOST FUEL-EFFICIENT ALL-CONDITION STOVE SYSTEM. Not only is the Reactor Stove System the fastest and most fuel efficient stove ever made, it&';s the only one that delivers that level of performance in the cold and wind of the real world. While that might sound like hype, take a look at these test results and see exactly what that means to you in the field. Simply put, you&';ll burn less fuel, carry less fuel, and move faster than with any other stove available. And with MSR&';s proven quality and durability, you can be assured of that performance to pull you through when you need it most.