FINE HOMEBUILDING
58
DISHWASHERS: Less hot water equals less energy use
USAGE TIPS
• Insulate hot-water pipes from the water
heater so that water stays hot all the way to
the dishwasher and doesn’t cool off as much
between the different wash and rinse cycles.
• Wash full loads only, even if it means waiting a
day or two.
• Avoid high-temperature cycles. Many dishwash-
ers have a setting for more intensive cleaning in
which the temperature is boosted, which can
significantly increase electricity use per cycle.
To conserve energy, don’t use this setting.
WHAT TO LOOK FOR
• The Energy Star label. Energy Star-qualified
dishwashers are at least 41% more energy
efficient than the federal minimum. Keep in
mind that some models exceed the standard
significantly more than others; check the
EnergyGuide label or the list of qualifying
dishwashers at www.energystar.gov for
high-performing machines.
• Soil sensing. With this technology, “fuzzy
logic” is used to determine how dirty the
dishes are. Water use and wash cycle are
adjusted accordingly, saving significant
water and energy.
• No-heat drying. Most dishwashers have an
electric heating element and fan for drying
dishes. Make sure the one you buy has a
no-heat drying option, which can save a
significant amount of energy.
Steam-cycle dishwashers. LG has introduced a steam-cycle
dishwasher that the company claims cleans dishes better. The wash-
ing cycle uses steam at over 200°F, apparently saving energy in
the process (because it uses a lot less water). The dishwasher was
unveiled at the 2007 Kitchen/Bath Industry Show and should be
available this fall.
Drawer dishwashers. The New Zealand company Fisher &
Paykel and KitchenAid both offer drawer-type dishwashers. They
can save energy and water by allowing you to use one smaller
drawer rather than a partially loaded full-size dishwasher, or by
allowing two drawers to be operated at different cycles.
Condensation drying. While most dishwashers vent moist
air into the kitchen as dishes are drying, Bosch models use
condensation-drying technology, which the company claims
improves hygiene and saves energy.
INNOVATIONS
TO WATCH FOR
Drawerful of savings.
Compact dishwasher
drawers can be highly
efficient (both of these
models from New
Zealand manufacturer
Fisher & Paykel are
Energy Star compliant).
An added bonus is that
the integrated models,
like the one pictured
above, blend seamlessly
into kitchen cabinetry.
Top: Fisher & Paykel model DD603I www.fisherpaykel.com
Bottom: Fisher & Paykel model DD603SS
Photos: Courtesy of Fisher & Paykel Appliances. Facing page: Courtesy of Bosch Appliances (top two). Courtesy of LG Appliances (bottom).
COPYRIGHT 2007 by The Taunton Press, Inc. Copying and distribution of this article is not permitted.
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