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With all the talk reciently about heat packs and diver warmth I thought I would bring up an idea that I came up with several years ago, NOTE THIS IS CONCEPT ONLY, I felt that was necessary. The idea is based on a device that is marketed for the rewarming of hypothermia victims in the medical field and is also used to rewarm surgery patient in the operating room. The unit uses a closed catalyst canister positioned in line to the second stage regulator, it would obviously need to be well insulated. The breathing gas that is in the tank has an increased percentage of Oxygen. Added to the gas mixture is Hydrogen which is then catalized with the additional Oxygen or part of the O2 if you were wanting to breath pure O2 as in a long decompression stop. The catalyst works to generate heat and water. The humidity this provides helps carry the heat energy to be transfered to the body, a side function would decrease dehydration from the dry gas mix. The unit that I have seen marketed is very reliable and it would take about 3-5 seconds of purging to get the reaction started. So my question is has anyone tried this? Greg gleafe@ns*.ne*
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