As well as meths you can use Bio Ethanol (its what I use), it burns cleaner with less odour/smell than meths. It's marginally faster at boiling too.
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What andywragg says, the "Hacienda" is bio-ethanol, B&Q ain't the cheapest.
Methylated spirit from B&M Stores, hope they still have it in stock for you, t'was very cheap there.
Also good imho, "Hacienda" fireplace fuel from B&Q.