Carbon/charcoal/coke has a similar energy density to Hexamine, so charcoal brickets or coke make for a reasonable energy supply.

They will store easily and are essentially inert in a wide range of weather conditions and temperatures. For long term storage you could also vacuum seal the charcoal brickets.

Disposable BBQ trays with Charcoal brickets are widely available for a reasonable cost.

http://www.amazon.co.uk/PACK-DISPOSABLE-INSTANT-LIGHT-BARBECUES/dp/B004FULDF2/ref=pd_sim_sbs_lp_1

http://www.youtube.com/watch?v=pctKepNWZTU

Getting the maximum heat from Charcoal or Coke for maximum thermal efficiency i.e. to heat water, would need a gasifier stove. These can be made from old tin cans for virtually no cost

http://www.youtube.com/watch?v=nHtA-d9hNPk

Using smokeless fuel with a gasifier stove should produce very little smoke or carbonization of your pot bases.

Using a gasifier stove will also be safer than attempting to use charcoal brickets or tabs on an Esbit stove as well as it will burn the excess CO being introduced into the environment to produce CO2 at the top of the gasifier stove.







Edited by Am_Fear_Liath_Mor (09/05/12 08:25 PM)