Why should?you buy wickless... Well its because wickless is a much safer. You dont have to worry about burning your house down, the kids or dogs messing with it, the jar cracking or worse exploding. You melt the wax by placing the candle jar on a candle warmer and as it melts it scents the house. My candles are highly scented and will easily fill a 500-900+ sq.ft. house depending on size.