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Washing machine

Washing machines are probably one of the most used appliances in a home and therefore one of the most energy consuming.


With the evolution of technology, current machines have programs that allow you to control the time when this equipment is turned on, control the amount of detergent, the water temperature, the rotation speed of the drum, the centrifugation and also determine the amount of laundry in it contained. There are models with built-in wireless technology that allow you to control equipment remotely, allowing you to adjust the time when the equipment is turned on and how it is turned on.

You should pay attention to the fact that a large part of the energy consumed by these equipments is destined for water heating, so it is important to select programs with shorter operation at lower temperatures.

Máquina de lavar com 10 anos

Um equipamento de classe B (adquirida antes de 2010) tem um consumo superior a 312 kWh, para uma utilização anual de 220 ciclos, o que equivale a um custo total a partir de 50€.

Máquina de lavar A+++

Um equipamento de classe mais elevada tem um consumo inferior a 180 kWh, para uma utilização anual de 220 ciclos, o que equivale a um custo total a partir de 29€.


Ao substituir a sua máquina de lavar roupa com 10 anos por uma de classe A+++, pode reduzir a sua fatura de energia em 21€/ano.

Other tips
  1. Make the most of your machine’s capacity and always put it into operation with a full load.
  2. Choose a detergent that will give you good results at low temperatures.
  3. Preferably use low temperature programs.
  4. Whenever possible, avoid doing the pre-wash cycle.
  5. Separate the clothes by fabric, color and degree of soiling and select the appropriate program for the type of clothes you are going to wash.
  6. Use anti-lime products to remove scale build-up and regularly clean the machine filter of impurities. This will improve your performance while saving energy.
Energy Label

The energy class of washing machines (Delegated Regulation (EU) No. 1061/2010) is calculated by the annual energy consumption, based on 220 washing cycles, in the normal cotton program at 60ºC at full load and under load partial, and in the cotton program at 40ºC at full load and partial load.

This consumption is approximately four washes per week, however its actual consumption depends on the actual use of the machine in terms of numbers, loads and temperatures of washes.

Currently, according to the requirements of Eco Design, only washing machines with minimum class A + can be placed on the market.

How to read the energy label:

  1. Supplier name or trademark and Supplier model
  2. Energy efficiency class
  3. Weighted annual energy consumption in kWh
  4. Annual water consumption in liters
  5. Nominal capacity (in kg) of the normal washing program
  6. Drying efficiency class
  7. Air noise emission during the washing and centrifugation phases, expressed in dB (A) re 1 pW
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