Primus fire starter the easiest way to start a fire is with great heat and great power. This also has the advantage of giving good combustion from the very start and avoiding the use of chemical fire starters, which makes this method more than most other lighting methods. Easy to use thanks to its built in Piezo-lighter. In extreme conditions, it can even be turned upside-down to use gas in its liquid form, which makes it possible to run in cold weather. This FireStarter fits all Primus PowerGas cartridges which gives the best output in all conditions.