There is an upgrade for people whoalready have the gas version of the351022 Power Stove Set, but wouldalso like the option of using liquidfuel, including naphtha fuel andlead-free petrol, and even kerosenein emergencies. The kit contains a0.35-litre fuel bottle, an ErgoPump,a multi-tool with a cleaning needleand jet nipples. A practical storagebag is included.