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Companion Brands Information Page: The Primus LP Gas mixture contains 230gm or 450gm, the largest 2202 cartridge contains the equivalent of approximately 1 litre of methylated spirits, sufficient to boil approximately 30 litres of water. The cartridges are equipped with self-se

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Gas Cartridges

The Primus LP Gas mixture contains 230gm or 450gm, the largest 2202 cartridge contains the equivalent of approximately 1 litre of methylated spirits, sufficient to boil approximately 30 litres of water. The cartridges are equipped with self-sealing, safety valves and internationally standard screw threads.

The choice of fuel depends on a number of different factors, such as where you live in the world and the availability of fuels; but also on factors such as the fuel's energy content. Below is a brief description of the most common types of fuel.

LP Gas (Liquified Petroleum)

Extremely high energy content (ratio of weight to heat output). LP Gas in gas cartridges is compressed 250 times into a liquid form. The pressure results in a low freezing point and means that the fuel burns well even at high altitudes. Going one step further, the Primus LP Gas is an optimal blend for the greatest reliability, the broadest areas of usage and the lowest weight. Primus LP Gas consists of propane, isobutane and butane. There is no need for pumping or pre-heating and combustion is completely free of odour and soot. No leaks or dangerous fumes as the only thing remaining after combustion is carbon dioxide and water vapor, the same substances we all exhale. Drawbacks - LP Gas cartridges are not permitted on planes. In most countries, you can hand in empty LP Gas cartridges where you buy new ones. Empty cartridges can be recycled as scrap metal.

White gasoline/petrol (chemically clean gasoline, also called naphtha)

This type of gasoline is cleaner than the standard gasoline/petrol used in cars. It can be purchased at paint shops and outdoor stores. Even though car gasoline/petrol is more readily available, it contains a number of harmful substances and should only be used if no chemically clean gasoline can be obtained (unleaded gasoline/petrol is the least harmful of the different types of car fuel). White gasoline is the most flammable of all liquid fuels. Drawbacks - extremely flammable, and requires pumping and preheating.

Kerosene

Same energy content as white gasoline but more readily available. Drawbacks - pumping and preheating required, not as clean as white gasoline or chemically clean gasoline, and thus requires more maintenance of the stove. Strong odour during combustion.

Diesel

Contains the energy equivalent of kerosene with excellent availability. The quality varies significantly depending on your location, and the drawbacks are even more pronounced. Compared with kerosene, there is an increased need for maintenance, which can be quite extensive depending on the quality of the diesel. Diesel should be considered an emergency fuel.

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