It is not recommended to heat up a cartridge heater with a lighter, as this can be extremely dangerous and can cause serious harm to yourself and others.
Cartridge heaters are designed to be powered by electricity and have specific operating parameters, including maximum temperature and wattage, that should not be exceeded. Attempting to heat up a cartridge heater with a lighter can cause it to overheat or even catch fire, which can lead to injury or property damage.
If you need to heat something up and do not have access to a proper heating device, it is best to use alternative methods such as boiling water, using an oven, or using a safe and appropriate heating tool.
