Why Pyrex, lab or instrumentation glass and not regular glass?
You need a thermally stable glass that can take the heat whereas lower grades of glass will pop with slight temperature differentials. Its all about safety. My bottle opening is larger than the flare on the glass tube ! The solution is to simply slide the tube into a brass collar or brass grommet or brass collar that will accommodate the larger opening. Do you have small funnels to refill small decorative bottles? Yes, we have small plastic funnels. My oil candle smokes! There are many fuels on the market. Perhaps you have used a crude fuel meant for outdoors. Look for “cleaner – purer” brands. Outdoor Patio Torches. These devices usually consist of a steel cylindrical can type cylinder with a 1/2″ to 3/4″ round fiberglass wick. Some designs also employ cotton torch wicks. Depending on design, some manufacturers place a heat reflecting cone shield between the can and the wick. The wick is usually set about 1/2″ above the wick holder. For the most part the wick should be set loosely in
