Dishwashers     

• Add extra insulation to reduce standing heat loss in water heaters and storage tanks.
• Do not over dry dishes. Adjust power dryers to deliver heated air just long enough to dry dishes.
• Schedule regular rinse water checks to ensure that boosters generate the minimum required temperature.
• Regularly remove hard water lime deposits from spray nozzles, tanks and heater coils.
• Filling dishwasher racks to capacity with each load can save $200+ annually.
• Set the water heater thermostat no higher than it needs to be: 140°F for hand washing. Consider using chemical sterilizers instead of higher water temperatures in dishwashers.
• Consider gray water heat recovery. If your dishwasher is a continuous fill and drain, consider installing a gray water heat recovery system. This system will recover some of the heat from the drain water and use it to reheat the supply water to the appliance.