Wax melts are basically scented candles without a wick and all you do is melt them in a glass or ceramic burner.
The melts get heated and fill the room (or whole house) with aroma.
They were originally created because chandlers (the old English term for candlemakers) were looking for something to do with their left over wax after pouring candles.
Due to their “pastry tart-like” shape, they became commonly referred to as “tarts”.
However, nowadays they come in many different shapes and sizes and are also called – wax melts, scent chips, candle melts or candle tarts.