Choosing an efficient dishwasher can save you up to $600 in energy costs over 10 years, compared to using an inefficient model.

Choosing a dishwasher

  • Choose the right size dishwasher - slim line or single drawer dishwashers are great if you only have a small amount of dirty dishes in your household.
  • Compare the Energy Rating Label of dishwashers of similar sizes and types - the more stars, the cheaper to run. All dishwashers have the Energy Rating Label so you can see roughly how much electricity they use in a year.
  • If you’re comparing different sizes or types of dishwashers, for example, a full sized versus a single drawer model, ignore the stars and look at the annual energy consumption (kWh per year).
  • Choose models with an ‘eco', ‘half load' or ‘fast' wash setting - they will help you save water and energy.
  • If you have a wetback, solar water heater or heat pump water heater - consider choosing a model with a hot water connection for lower running costs and shorter cycle times. Check the maximum hot water-inlet temperature and make sure you have a suitable tempering valve on your hot-water system. Connect dishwashers with a single water connection only to cold water.

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Smart use of dishwashers

  • If you rinse dishes before loading, use cold water.
  • Regularly clean your dishwasher's filter - with a brush and hot soapy water. Check the spray arms also, as holes can get clogged.
  • Only run the dishwasher when it’s fully loaded.
  • Use the machine's eco-cycle - or select the cycle with the lowest temperature and minimum time to get the job done. If you use the eco-cycle regularly, use a normal or hot cycle every now and then to prevent grease build-up in the dishwasher.