ENERGY STAR labeled dishwashers save by using both improved technology for the primary wash cycle, and by using less hot water to clean. Construction includes more effective washing action, energy efficient motors and other advanced technology such as sensors that determine the length of the wash cycle and the temperature of the water necessary to clean the dishes.
Significant savings can be realized by minimizing the amount of hot water needed. The water temperature in a dishwasher should be at least 140 degrees Fahrenheit to clean your dishes. The ENERGY STAR qualified models with internal water heaters boost the water temperature inside the dishwasher. This allows you to turn down the thermostat on your household water heater to 120 degrees, reducing your water heating costs by up to 10%.
Using your dishwasher's heater to dry dishes consumes a significant amount of energy. Federal law requires that all new dishwashers have a no-heat drying option. This is often called the "energy saver" feature. This takes a little longer, but may dry the dishes as well as the heat drying operation and saves energy. |