Tips for buying tall glass candle holders include checking if they are safe to burn candles in and buying candles at the same place you buy the holders to ensure a proper fit. Read any labels attached to glass candle holders, as some have designs meant solely for decorative use.
Stores often sell candles designed to fit the candle holders they sell. If you buy candle holders to fit candles you already have, write down their measurements, and bring a tape measure with you to the store to determine which holders fit them best.
Never use cold water to put out a candle in a glass holder, because the sudden change from hot to cold can cause the glass to crack. Consider purchasing a candle snuffer along with your glass candle holders, as it offers the safest way to put out candles.