Is heating rocks with fire, covering them and sleeping on them, a real cold weather survival technique?

Question

I'm watching it on Jeremiah Johnson on TV with R Redford and Grampa Walton.

Answer 1

It's probably OK to heat rocks for your bedding, however I'd be careful if they were exposed to a wet or damp environment for any period of time. Most rocks of the size that you'd be using would probably have microscopic cracks in them that could contain enough water in them to cause an explosion if heated too fast, too hot or too long. If you're intent on heating them, I'd advise you to stay well away from the fire while heating and use a long pole to "fish" them out when you think there warm enough.
Personally, I use dry grass, leaves or pine bows for bedding and a "space blanket with the silver side up under my sleeping bag. I make my bedding at least 8 inches thick. Hope this helps.

Answer 2

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Answer 3

Sure is. My mom and her sisters, during the war, would do the same thing; heat up rocks, wrap them up and sleep with them. The rocks would hold the heat. Kinda like a hot water bottle. It was the only way the could stay warm - if they were lucky enough to find enough wood for the fire that day.

Answer 4

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Answer 5

Yes it is. Looking back in time a bit - during the winter months in the days before fossil fuels and furnaces heating the house in the winter, people would put hot rocks in cast iron pot in slip it under the covers to help keep them warm in bed.

Answer 6

It is real. They even used to teach it in the old Boy Scout handbooks many years ago.

It isn't as easy as it looks- an even layer of embers (it is usually embers, not rocks) with the right layer of dirt keeps the embers warm and actually burning all night. Too little dirt and you are on fire, too much and it smothers the embers so you get cold at night.

Answer 7

YES! Mexicans did this in 1948, I think, when they were immigrating to America. As fruit pickers and packers, the cold weather was no good to them, so in order to keep warm, they heated rocks and bricks in ovens/fires and it kept them warm.

Answer 8

Yeah... I totally do it. It keeps the ground under your sleeping bag warm for a little while, but I think it fades pretty quickly.

Answer 9

My Grandpa told me that they esed to do this with bricks when he was young...
It makes sense if you think about it. A stone will retain heat for quite a while.

Answer 10

you sleep next to the fire, you put like four rocks in front of the fire. after a while they warm up so you put two under/next to you. when they cool down you put them in front of the fire, and take the other two sitting in front of it already, rotating.