1. Get ready: A: Turn the heat knob to the off position. Plug the power cord into a 3-prong outlet that is properly grounded. B: Place a container with the solution and the appropriate accessories in the center of the top plate. This is important because the container should be above the hottest part of the top plate. 2. Temperature setting: A: Turn the heat knob clockwise to the desired heat. The light above the heat button will light up to indicate if the heating function is in use. The indicator light turns off automatically when the set temperature is reached. B: Temperature adjustments can be made without interrupting the heating by turning the indicator knob clockwise to increase the heat and counter-clockwise to decrease the heat. C: To stop heating, turn the heat knob to the off position. Attention hot top indicator: The warning sign on the top indicates that the top plate is too hot to touch. The hot top warning sign does not turn on. This is just to indicate and prevent the person doing the experiment from touching the top plate.