This is something I have been working on, we now have a small portable grill with several bottles of propane, also got one of those mini camping butane stoves with several spare bottles. Also made a few of the pop can stoves and enough fuel for a week with those. We have tried all of them making sure everything will work, and I would have to say the pop can stoves would have to be a last resort as they don't seem to last long enough to be very productive unless your just boiling 1 cup of water.