How long should the glass wick tube be?
All the tube does is hold the wick. A longer tube does not improve wicking action. Some folks prefer longer tubes because they are making lamps that are rather high and use the longer tubes to make sure the wick makes it to the bottom of the vessel. Some folks put potpourri in mason jars and use a longer tube to “push” through the decorative objects that are set in the fluid part of the oil candle. Some buy longer tubes just for the looks. Should I drill the hole for the glass wick tube before I receive my order? Answer is no. The reason is the glass stock tubing used to make the tubes can vary from 6 to 7mm outside diameter. It is best to wait for the tubes, measure, then drill the holes in whatever device you plan on making an oil candle out of. 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 l
