Hello New to forum. 1. What is the best type of wax and wick to use in making candles that last a long time in a power outage, survial, and to use heat food if need to. 2. Glass or tin holder for wax 3. How many ounces of wax per hour? 4. Is there a way to calculate how long the candle will last or, do I need to do trial and error. PS: I never made a candle before, Just learning how to Thank You