Lighters and torches: keep a flame close

Fill a classic petrol lighter with lighter fluid. If you fit a butane insert, then you fill it with gas. You can swap the insert yourself, so the same housing works with either fuel.

That mainly depends on how often you use it, but petrol evaporates even when the lighter is idle. If you rarely use it, then it can be empty after a few weeks without you ever lighting it. Gas evaporates much more slowly.

It’s the small rod that creates a spark when you turn the wheel. It wears down, and with daily use you’ll need to replace it about once a month. A pack of lighter flints lasts a long time and costs very little.

The flame is shielded by a perforated chimney, so the wind does not easily blow it out. A butane jet flame is more concentrated and holds up even in strong winds.

Yes, on most lighter housings. Bear in mind that engraving is permanent, so check the spelling before you order.

The insert is the inner mechanism: the burner and fuel reservoir. The housing is the outer part you hold. By swapping the insert, you can turn a petrol lighter into a gas lighter without buying a new housing.