Hello from Finland! Im new in candle making and so grateful that I found this wonderful server. I working and testing with 4627, CS fragrance oils and LX wicks. I use glass containers (dia 3" and height 3,5"). I have problems in HT. HT is quite strong, but I can smell fuel in it. I have tested 4 different fo's and fuel smell is always there. What cause this? Can anyone help me?