If you're in Europe then Lamp Oil - freely available at most major supermarkets for around 2 euros - is the most commonly used fuel. It's similar to paraffin/kerosene except Lamp Oil is odourless and smokless.
Be warned though! Supermarkets are now starting to stock two types: a white-capped version and a black-capped version.
The white cap stuff lights at 67 degrees amd the black cap stuff at 100 degrees. The black cap lamp oil is usually (but not always!) dyed dark green/blue.
The black cap lamp oil will BURN YOU on touch -
luck for me I didn't have to fnd that out for myself, not so lucky fo the poor lady who did.
It's also a pain in the arse to light.
I hope this is useful information for someone
dave