Exotac candleTIN Emergency Heat Survival Candle. Hot burning version. Up to 6 hour burn time (approximately 2 hours per wick). Will boil 8 oz. of water in 18 minutes (requires all three wicks to burn at one time). Slow burning version. Up to 12 hour burn time (approximately 4 hours per wick). Weighs approximately 1.8 oz. Tin plated steel construction. 100% beeswax with 3 wicks. Offers brighter light, burns cleaner and lasts longer than any other wax. Also use to light a shelter or heat an emergency blanket.