(1) One source describes this as the container that holds and dispenses gas, but this could be a good description of your hiking partner, so it isn't quite precise enough, and we like precision. So how about this, from Backpacker magazine's (now defunct) online More Jargon file: "Tanks come in several varieties, from separate bottles to screw-on canisters to integral tanks. Most liquid-fuel stoves link via a fuel line to a refillable fuel bottle that must be pumped to pressurize the fuel for use. Most also require priming, or preheating. Liquid-fuel stoves demand varying degrees of assembly and periodic maintenance. While they are bulkier, heavier, and less convenient than canister stoves, they stand up better to strong winds and cold weather. Models that burn multiple fuels, like white gas, kerosene, and auto gas, are valuable when traveling overseas. Liquid fuel is lighter than canisters for long trips with infrequent opportunities to refuel, and it offers you the flexibility of packing the amount you need in fuel bottles of various sizes."
Are you dizzy yet? Well, so are they, obviously, never managing to define fuel bottle, and using so many words to do it. Who said all the bureaucrats work for the government?
(2) A fuel bottle is just a bottle to carry fuel in, for a backpacking stove. If using an alcohol-burning stove your only absolute requirement is that the container does not leak. Since alcohol is non-explosive and about as close to non-toxic as you can get, you don't have to worry about getting any bottle that might require a bank loan. Keep it simple, eh?
Have anything worth adding? Then try sosayseff+eff@gmail.com
Me? Recovering from my latest nose-hair-shaving attempt. (Slowly.)
Etc...
so says eff: sporadic spurts of grade eff distraction
definitions: outdoor terms
fiyh: dave's little guide to ultralight backpacking stoves
boyb: dave's little guide to backpacks
snorpy bits: nibbling away at your sanity
last seen receding: missives from a certain mobile homer
noseyjoe: purposefully poking my proboscis into technicals