EFFICIENT, ENERGY STAR-CERTIFIED MODERN DISHWASHERS TEND TO SHARE CERTAIN CHARACTERISTICS, INCLUDING LOW-MAINTENANCE RACK AND INTERIOR FINISHES, SMART CONTROLS, SENSORS, RECIRCULATING WATER PUMPS, AND QUIET, INSULATED SHELLS.
SMART CONTROLS
Energy-saving dishwashers include delay start timers, plus energy-and water-saving modes. Consumer research shows that only about one-third of people take advantage of these features. That behavior gap is one area where dishwasher efficiency can still rise significantly.
RUGGED FINISHES
Stainless steel interiors, advanced polymer coatings, anti-scale technology, and other enhancements are standard features in better made dishwashers.
MACHINE VS. HAND WASHING
Studies have shown that automatic dishwashers typically require less water and energy than washing by hand. Here’s how to further widen the “green” gap between machine cleaning and hand washing.
Time of Day
Some utilities offer lower rates during off peak hours. Use delayed start timers to operate the dishwasher when your local power plant is working more efficiently.
Full Loads
A full machine makes the best use of water and energy. Newer machines can sense partial loads, but why rely on sensors? Fill it up before you press “start.”
Eco-Friendly Detergents
Treating powerful detergents in wastewater costs your municipality money and energy. Opt for biodegradeable detergents.
SPIES INSIDE
Advanced sensors and computerized controls have pushed the best dishwashers to what may be the physical limits of efficiency. For example, consider these advances found in Whirlpool’s latest Energy Star models:
> Automatic Temperature Control
The machine adjusts water and air-drying temperature based on how dirty the dishes are. For even more energy savings, you can switch to an “air dry” setting and shut off the heating element altogether.
> Soil Sensors (Water Saver)
Older machines tend to use a fixed amount of water to wash and rinse, but soil sensors measure the amount of foodstuff in the used water and minimize how much new water is added with each cycle.
> Adaptive Wash Cycle
While running a full load of dishes is always a good idea, it’s not always practical. New sensing technology measures how full the dishwasher is and adjusts the amount of energy and water required to do the job.
> Flexible Racks
Some newer models include compartmentalized washer racks for specialized or small loads.
27
02.2011
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