It looks like they confused some form of (Zippo) lighter fluid with "Zip Military Cooking Fuel" which is some form of "Fatty alcohol" (methyl decanoate)
Originally Posted By: http://www.firedragonfuel.com/#!firedragon-gel-fuel/c9fs
BCB apologises for any confusion caused in publishing on our website and in our marketing materials, inaccurate quality and performance comparison tables with Zip Fuel; our tests were in fact performed on a different product. For clarity, Zip Military Cooking Fuel is not a fossil fuel, the fuel itself is not toxic and we understand it is safe for wildlife and is air transportable



They also say
​✔​​ ​High calorific value​ (approx. 28,000 kJ / kg)
which makes it some kind of Sterno(gelled ethanol, approx 12,468 btu/lb ), fondue fuel, fire starter gel...
By my searching, the cost of 250mL of this fire dragon fuel is £5 (British pounds)

previously Am_Fear_Liath_Mor said he gets a can of sterno for £0.75
So fire dragon fuel £5/ sterno £0.75 = 6.67 more expensive
So generic sterno is 6.67 times cheaper than fire-dragon-sterno for about the same amount of btu

That is very expensive
Also consider that for £5 (about $8.17 usd) you can get 6lb vegetable shortening (crisco $8.98) which is about 95,000 BTU (versus about 5,500 for a can of sterno)

If worried about bears mix some cayanne pepper into your sterno candle laugh