A wax or oil burner is a device used to melt scented wax or essential oils, typically through a heat source like a tea light candle or an electric element. As the wax or oil heats up, it releases fragrant aromas into the air, making it a popular choice for creating a pleasant ambiance in homes. These burners come in various designs, from traditional to contemporary, and can serve as decorative pieces while enhancing the overall atmosphere of a room.