Heats up the chocolate and pumps it upwards . Pump and temperature are controllable separately . Can be dismantled for easy cleaning . Horrible machine. Chocolate flys allover the kitchen even after smoothening it by taking every step carefully and using the best chocolate. I wasted my chocolate . This Chocolate fountain creates fun at children's parties or for just treating your child to a fresh fruit or marshmallows in a delicious chocolate layer. Warms the chocolate and pumps it upwards. Pump and temperature is controllable separately. Can be dismantled for easy cleaning.