Simply place in a Tarts wax melts warmer (never add water) and light an unscented tea light below, or use one of our electric warmers.nAs the wax melts, the fragrance is released.nUp to 8 Hours of FragrancenThis wickless wax tart melts quickly to produce room-filling fragrance in minutes. It works in all electric and non-electric Yankee Candle® warmers.