Msr reactor stove including reactor pot description 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 quali