I don't know if folks on this forum will know the answer to this, but I was reflecting upon Bagheera's suggestion. It seems to me that the reason this technique extends candle life is that the small opening in the center of the shell brass reduces the amount of exposed wax, hence slowing the burn rate.<br><br>If this is correct, would the slow burn rate also reduce the heat produced by the flame? And, if so, does it make a difference if the candle is being used to keep warm, like if you are burning it while crouched under a poncho as a makeshift shelter. <br><br>I guess one would have to make a judgement on how to ration one's resources. You want to make items last as long as possible. But if it doesn't generate enough heat to keep you warm you could lose your sense of judgement or, worse yet, the battle against cold.<br><br><br><br>Willie Vannerson<br>McHenry, IL