Comment: A lot of good answers listed below

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A lot of good answers listed below

to your questions. My two cents is that if you live in a cold enviroment consider getting a diesel generator and a biofuel maker to supply it. Cold weather can kill you in an hour. If all else fails...bring your animals inside, especially horse or donkey. They put off a lot of heat, stink but, you will live. Safe fuel tent/cabin heaters (non electric). Watch out for cooking tabs for C rations. Puts off a lot of toxic fumes. Nearly killed me once while in the Marines.

"Necessity is the plea for every infringement of human freedom. It is argument of tyrants. It is the creed of slaves." William Pitt in the House of Commons November 18, 1783
"I know major allies who fund them" Gen. Dempsey referring to ISIS