The Fourth Essential, by Bob B.
As any survivalist quickly learns, the “three basic essentials” to survival are air, water and shelter. However, I learned to realize that there is a fourth basic essential, that being a stove–which provides a way to reliably purify the water, cook the food and make the shelter more comfortable. Of course, there are many types of water filters, solar ovens and warmer clothing for those needs but, somewhere along the line, the ongoing need for a practical, portable, concealable, quick and highly-efficient means of heating will be needed. SHTF heating that can purify your water, cook your food and warm …