The new Optimus Polaris Optifuel burner can be used with either petroleum based fuels, or gas canisters without swapping jets, or needles on the stove - making use quick and easy when switching between available fuel sources. Featuring a patented quick-priming burner, a self purging aluminium pump and a built in magnetic cleaning needle, the Polaris provides easy and reliable performance when cooking outdoors. In order to aid the performance of canister gas when out in colder conditions, the Polaris has the ability to mount canisters upside down - thereby increasing efficiency. If you need a flexible , compact, multiple fuel burner for use with many fuel types, the Optimus Polaris optifuel stove is the stove for you.