Why Wicks?
In order for combustion to take place, we need to consider the “Triangle of Fire”.
Oxygen, Heat and Fuel must be present, in the proper balance, for efficient and effective combustion to take place.
During the production of the light and warmth we enjoy from candles, it is not the wick of a candle that we see burning, but rather the combustion of liquid wax that has been vapourised by the heat of the candle flame. In order to maintain a steady supply of fuel, the wax around the flame is melted by the heat, and drawn up the wick to the flame through the process of capillary action.
Choosing the correct wick is important to ensure your candles burn efficiently and smoke free.
The two most important factors to consider when selecting a wick are:
1. The type of wax
2. The diameter of the candle
Most modern wicks are made of cotton threads woven, or braided, together in various quantities and formats resulting in differing performance characteristics and applications.
For pillar candles with varying widths, consider the average diameter when choosing a wick. For some novelty candles, it may be relevant to select a wick for the smallest diameter of the candle. (For example, the neck of a human figure).
Since there are many factors which can influence the combustion of a candle flame, it is recommended to perform test burns whenever candles are being produced.