In Jim Phillips' presentations, he said that the mylar blankets retain 90% of the body's radiant heat, which is only 10% of the total. So you're retaining 90% of 10%. Plus, if they get a little tear in them, they shred to pieces. Here's an article by someone who actually tried to use them: https://graywolfsurvival.com/218008/mylar-emergency-blankets/
They have their uses, but an emergency heat source may not be one of them.
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MelodyJuly 27, 2017
In Jim Phillips' presentations, he said that the mylar blankets retain 90% of the body's radiant heat, which is only 10% of the total. So you're retaining 90% of 10%. Plus, if they get a little tear in them, they shred to pieces. Here's an article by someone who actually tried to use them: https://graywolfsurvival.com/218008/mylar-emergency-blankets/ They have their uses, but an emergency heat source may not be one of them.
Tom JohnsonJuly 26, 2017
Thank you for this information.
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