Get Cool About
Washing Laundry

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Quick Facts

Affordability
Cost Savings
CO2 Reduction

Using cold water is therefore the single most important way to reduce the energy you use to wash your laundry. The next most important step is to use an energy-efficient machine. An ENERGY STAR®-approved washing machine will save water and energy.

Affordability

Heating water accounts for 90% of the energy consumption of washing machines [PDF, 145 Kb]. An ENERGY STAR®-approved washing machine will save water and energy.

Cost savings

By switching from hot to cold water for an average of three loads per week, you could save up to $27 per year on your energy bill.

Health & comfort

Unlike dishwashers, washing machines can wash with great results in cold water. In fact, most fabrics last longer and fade less when washed cold and hung to dry. Front-load washers can save you time as they hold larger loads. They will also keep your clothes looking better longer.

Environmental considerations

In addition to minimizing energy use, protecting fresh water resources is a key concern. Choose detergents that are biodegradable and avoid using chlorine bleach. If you need to whiten your whites, there are natural bleaches available that work well without polluting the water. Look for them in your local health food or natural products stores.

What you need to know

  • Load the washer to capacity when possible. Most people tend to under-load their washing machines. One large load of laundry will use less energy than two small or medium loads.
  • For partial loads, adjust water levels to match the size of the load.
  • Set your machine to the shortest wash time.
  • Note that the permanent press wash cycle uses as much as 20 litres more water for the additional rinse.
  • The amount of detergent you require depends on the kind of detergent you are using and the mineral make up (hardness or softness) of your water. Too much detergent makes your machine work harder and uses more energy. The manual for your washing machine should indicate the amount of soap to use in hard or soft water. Contact your local water utility to find out how hard or soft your water is.
  • If your clothes aren't dirty, don't wash them.
  • With heavy loads, adding an extra spin cycle can reduce dry times.
  • Read your appliance's owner's manual to learn how to operate your clothes washer at optimum efficiency.
  • Put a timer on the outlet for the washer and dryer to reduce phantom loads when not in use.

Taking it further

  • Buy an ENERGY STAR front-loading washing machine. Front-loading machines can cut water use by nearly 40% and electricity use up to 65% compared to a conventional top loader. For more information about front-loading washers, see our Buyer's Guide for washing machines.
  • Front-load washing machines do not have agitators, the large paddle-devices in the centre of top loaders. This gives them on average 30% more capacity for clothes. The extra space also improves washing of bulky items like sleeping bags, bedspreads and throw rugs.
  • Front loaders spin more rapidly than top loaders, so clothes come out drier, which reduces drying time and protects fabrics. As of 2007, ENERGY STAR-rated washing machines use 35–50% less water and at least 36% less energy per load than standard machines.
  • If you don't have an efficient machine and aren't in a position to buy one, many laundromats use energy-efficient front-loading machines. Doing laundry could become a social occasion.
  • Make your machine run on pedal power. With a little tinkering, old washing machines can be made to run on calories instead of electricity. You can also make one using bicycle parts and barrels or large tubs. Make a portable one so you can wash outside in the summertime. See our Home Energy Resources section for more information.
  • Try your own energy and use a hand crank clothes washer (suitable for small loads generated by single-person households, cloth diapers or RV owners) or a larger hand washer for larger loads. The larger hand washer uses 65% less energy than a conventional washing machine. Getting an extra workout by turning the hand crank is an added health benefit.
  • As a supplement to traditional hot water heaters, solar hot water heaters can be a cost-effective and environmentally friendly way to generate hot water for your home. They can be used seasonally in any climate and are powered by the sun, a free, renewable resource. Check out the solar hot water incentives for 2010.
  • Check out incentives and rebates for energy efficient appliances.

FAQ

ENERGY STAR appliances usually cost more than others. Would I save money if I don’t buy an ENERGY STAR washing machine but I keep it well maintained?
No. It is always a good idea to keep any appliance well maintained for optimum performance, but even so, ENERGY STAR-rated washing machines are so much more efficient than other models – 36% more efficient than government standards – that they generally pay for themselves in just a few years. Think of an appliance as having two prices: the cost to buy it and the cost to run it. The higher cost of running less energy-efficient appliances quickly cancels out the lower purchase price.

If I only wash in cold water, will my clothes still get as clean?
Yes. Clothes can come out just as clean in cold water, even whites. If you have hard water, try adding some borax to your laundry to brighten whites and colours. You can also add 1/2 cup of lemon juice to the rinse cycle for fresh bright laundry, or use natural biodegradable, non-chlorinated bleach on your whites if you find they're not bright enough. Hanging your laundry in the sun to dry it will also act as a brightener. Sunlight is a natural bleaching agent.

What about hard-to-remove stains?
Spot clean stains with a natural spot remover before you launder them. The stains will likely come out readily in cold water and you'll use less energy. For really tough dirty or oily stains, use the "warm" water setting instead of "hot." You are still cutting your energy savings in half. Also, use a natural stain remover prior to washing or presoak clothes to help loosen the dirt or oil from the stain.

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Power Smart
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Buyer's Guide

Learn more about energy-efficient washing machines. 

Resources

Get more information about energy-efficient washers and other appliances.

Last Modified: Mar 31, 2011