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MSR Reactor Stove System 2.5L

The MSR Reactor Stove System 2.5L is the fastest, most fuel-efficient, all-condition stove system in the world. A pure performance stove! 

With test results to prove it, the Reactor Stove System 2.5L can deliver performance heating in the windiest and coldest conditions. Capable of burning less fuel and allowing you to carry a lighter pack with less fuel whilst moving faster, the Reactor Stove Systems are easy to use and offer proven quality and durability. You can be assured that this performance system will pull you through when you need it most.

The MSR Reactor Stove combines a state-of-the-art stove and high efficiency 2.5 litre pot with heat exchanger into one compact, easy-to-use unit. The Reactor is also the first canister stove to use an internal pressure regulator that ensures consistent flame output in all conditions. The radiant burner is enclosed by the heat exchanger for total wind protection, making the Reactor the perfect stove for windy and cold conditions. The Reactor is also great at high altitudes. You'd expect a stove like this to be pretty heavy and not great for backpacking, but the Reactor 2.5L weighs in at only 585g and it stows away into itself.


  • Unrivalled Boil Time: Outperforms the competition in lab tests boiling 1 liter of water in just 3 minutes with an even greater advantage in challenging conditions
  • Maximum Efficiency: Patent-pending radiant burner and heat exchanger make the Reactor the most efficient all-condition stove system, so you carry less fuel
  • Unmatched Wind Protection: Radiant burner head is enclosed by heat exchanger for total protection in even the windiest conditions
  • Integrated System: State-of-the-art stove and high-efficiency pot are combined into one compact, easy-to-use system
  • Averages 22 litres of water per 8 oz fuel canister
  • Boils 2.8 litres per ounce of fuel
  • Roughly 80 minutes of burn time per 8 oz fuel canister
  • 2.5L System: Boils enough for five freeze dried meals at once, or make it an expedition snow-melting powerhouse for 2-3 people.


  • Manufacturer: MSR

Personal Shopping - By Appointment

Would you like to try on some climbing shoes or mountain boots for size before you make your purchase? If so, then why not book an appointment with us today! We can offer you a discreet one-on-one shopping experience with one of our experienced staff members.