Let me ask you a question.
Ever think about what would happen if our modern civility was through into turmoil?
For the average-everyday person this means, NO WATER, NO ELECTRICITY, NO GAS = NO HEAT.
In 5 to 10 minutes you can have a nifty and very workable stove that is not only convenient but is well suited for travel based on it's compact size.
Remember, It NEVER hurts to be prepared. How else will you survive?