1.5.22 Regularly defrost manual defrost refrigerators and freezers

1.5.22 Regularly defrost manual defrost refrigerators and freezers


To improve their efficiency, it is necessary, amongst other things, to defrost refrigerators and freezers manually minimum once a year, to avoid the grown of ice which is an insulator and prevents an efficient use.


  • Reduce electricity consumption

  • Extend the lifespan of refrigerators and freezers

  • Obtain better performance from refrigerators and freezers, especially if they are old

  • The defrosting operation is simple and fast to realize


  • Before defrosting, it will be necessary to empty refrigerators and freezers

  • User acceptance

Economic assessment

The cost is zero.

References and best practices

Image gallery


Environment or playable world:

  • Residential

  • Academic

  • Offices

  • All

Carried out by:

  • Public building users

  • Owners

  • Operators

  • All

Reduce consumption of:

  • Heating

  • Cooling

  • DHW

  • Lighting

  • Electric devices

Type of driver:

  • Physical environmental

  • Contextual

  • Psychological

  • Physiological

  • Social

Time framework:

  • Short term
  • Long term

Type of measure:

  • Envelope
  • HVAC
  • DHW
  • Lighting
  • Electrical devices
  • Other
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