Energy Efficiency
Clean Fridge Condenser/Evaporator Coils Once Per Quarter

What Is It?

The condenser of a refrigerator or freezer is the coil on the outside of the unit; the evaporator is the coil on the inside. Coolant is circulated through the system by a compressor. In a refrigerator, coolant is chilled in a condenser, then flows to the evaporator, where air is cooled by contact with the coil. Dust and grime accumulate on the coils and reduce the efficiency of the heat transfer.


Cleaning the coils improves the efficiency of the heat transfer and cooling process. Bacteria and grime are more likely to build up on the coils of walk-in freezers, so cleanliness is also addressed with regular cleaning.

Read more about the benefits of cleaning refrigerator condenser and evaporator coils.

Challenge Participants Currently Adopting This Practice

  • Au Bon Pain
  • The Colonnade Hotel
  • Community Servings
  • Crittenton Women’s Union
  • Federal Reserve
  • Foley Hoag LLP
  • Gillette
  • John Hancock
  • Marriott
  • Massachusetts Convention Center Authority
  • New England Aquarium
  • Nutter, McClennen & Fish, LLP
  • Putnam Investments
  • Seaport Hotel
  • Sheraton Hotel
  • WilmerHale

Financing Options, Incentives, And Rebates

Additional Resources

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