Absolutely nothing. I have a double Foker LPG burner for emergency use



http://www.gasproducts.co.uk/acatalog/copy_of_Cast_Iron_Double_Burner_Gas_Boiling_Ring_with_FFD.html

With a low pressure 15kg LPG Gas bottle this will give approx 4-6 months cooking @ .1Kg per day fuel use.

Keeping the bottles in movable heaters designed for 15kg LPG butane bottles.



Lockable Storage for LPG butane and propane bottles (various sizes and capacities) are available for external storage

If the requirement is purely for stove cooking using wood then the Horizon Wood Gasifier Stove may be worth a look as well. Should be very efficent to use and potentially almost smokeless. (lack of smoke is an important consideration)

http://anevay.co.uk/camping-stoves/the-horizon-rocket-stove.html