Generally speaking, many ounces of alcohol you guys use to boil at most 2 cups of water? Assume the elevation is never higher than 6,600 feet and denature alcohol from painting department of a hardware store is used. I've been getting various amount of boil time using cold water. (Creek water is cold, so I use cold sink water for my tests.)
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It is one of the blessings of wilderness life that it shows us how few things we need in order to be perfectly happy.-- Horace Kephart