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Quick Facts on Clothes Washers

Today's clothes washers are about 23 percent more energy efficient than they were in 1990, and ENERGY STAR® qualified models are even better.

List of models : clothes washers

Improvements in clothes washers are the result of changeable water-fill controls, more cold-water rinse options, less hot water and more cold water in the warm setting, better mixing valves and increased spin speed.

Both front- and top-loading washers are available. Although both kinds may have the same capacity, the top-loading model looks bigger because of the agitator.


Clothes washers 1990
(annual energy consumption in kWh/year)
2004
(annual energy consumption in kWh/year)
Standard 1218 573
ENERGY STAR® qualified 267

Front-loading washers use almost 40 percent less water and 50 percent less energy than top-loading washers; they also use less detergent.

Testing today (CSA Standard C360-03)

This test standard is also used as the basis for verifying energy performance for ENERGY STAR qualified clothes washers.

The EnerGuide consumption is based on CSA Standard C360-03 that calculates energy consumption based on an Energy Factor, which is essentially the mechanical energy produced by the machine plus the energy to heat the water used during the cycle. ENERGY STAR is currently based on a new factor called Modified Energy Factor (MEF) that takes into account the amount of water remaining in the clothes (which would affect the dryer consumption).

Models that are tested for energy consumption are standard (drum volume equal to or greater than 45 litres) and compact (drum volume less than 45 litres) top-loading automatic clothes washers and front-loading clothes washers (also known as horizontal- axis clothes washers) that draw hot water directly from the water connection.

Various wash cycles at different temperatures and water levels (e.g., suds-saver and wash/rinse selections) are used for testing front- and top-loading washers. Pure-finished bleached cloths that are 50 percent polyester and 50 percent cotton are used for testing. The test cloth measures 60 × 90 centimetres and the stuffer cloth measures 30 × 30 centimetres. The number of test runs on the same cloth must not exceed 60. The test load consists of bone-dry test cloths with a mass of between 1.36 kilograms (minimum) and 3.18 kilograms (maximum). The stuffer cloths are used to achieve the proper mass.

The machine is run through a representative number of cycles (depending on the features of the individual machine), and a number of variables, including energy and water consumption, are recorded.

Calculating the EnerGuide Rating

For example:

0.70 kWh      ×
(energy
consumption
per cycle)
392      =
(average annual
number of cycles)
274.4 kWh/year
(annual energy
consumption)

ENERGY STAR

ENERGY STAR High Efficiency Symbol ENERGY STAR qualified clothes washers are the best performers. Today, only standard-sized top- and front- loading clothes washers can qualify for ENERGY STAR.

ENERGY STAR qualified clothes washers
Through superior design, ENERGY STAR qualified washers help save money on utility bills by using less water and energy while cleaning clothes thoroughly. In fact, these clothes washers use 20 to 50 percent less energy and 35 to 50 percent less water per load than traditional models.

Features of ENERGY STAR qualified clothes washers
  • sensors that prevent energy waste by matching water needs to the size of each load
  • advanced high-speed motors that reduce the length of spin cycles and remove more water from clothes, so less time and energy are needed for drying

Canadians can enjoy the benefits of these washers without giving up features they have come to expect from regular units. ENERGY STAR qualified clothes washers are available in both top- and front-loading designs of varying capacity and offer adjustable water-temperature controls and load sizes.

The ENERGY STAR name and the ENERGY STAR symbol are registered trademarks of the United States Environmental Protection Agency and are used with permission.