Close the door!

Close The DoorMaking sure the walk-in door is closed - except when someone is walking in (or out) of the cooler – is an obvious way to get a handle on wasted energy. Here are seven others:

  1. At least twice a year, clean the evaporator and condensing coils. If the coils are located outdoors, they should be cleaned more often. On outside condensing units, be sure there are no weeds or trash nearby that could block air flow.
  2. Make sure nothing is stacked around the coil. Restricting air flow requires the unit to work harder, and use more energy.
  3. Don't stack food or boxes too close to the thermometer sensing bulb in the door. It can cause a false reading of the walk-in's temperature and require the unit to work harder than necessary.
  4. Check the door sweep to be sure it's sealing properly. If there are any tears, fix or replace them. For the same reason, be sure hinges are kept clean and lubricated at least once a year to allow them to close properly.
  5. Have a service technician check the tightness of the system's electrical connections. Loose wires can cause high amperage and force your walk-in to use excess energy.
  6. Turn off the interior lights when leaving the walk-in. Lights produce heat and cause your system to run more to maintain the required temperature.
  7. Place a back-up thermometer inside the walk-in to ensure the unit is cooling to the appropriate temperature.

If your energy bills are still too high, a representative from Heatcraft Refrigeration Products may be able to help. Find your nearest representative at

Learn about energy-saving commercial refrigeration equipment through our E-solutions™ program or by contacting a Heatcraft representative.

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•  Close the door!
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At Heatcraft Refrigeration Products, our mission is to make our customers feel comfortable, so we make it our policy to never release, rent or sell personal information to third parties. © 2011 Lennox Industries Inc.