How Much Does a Chest Freezer Cost to Run?

Start with the EnergyGuide estimate

A chest freezer's annual energy use is usually listed on its yellow EnergyGuide label. Divide that number by 12 for a monthly average. For a typical 15-cubic-foot manual-defrost chest freezer, the annual estimate is often 300 to 500 kWh, or about 25 to 42 kWh per month.

Auto-defrost models and larger freezers use more energy because the defrost heater cycles on periodically to clear frost from the cooling coils.

Factors that change real-world use

A chest freezer in a hot garage or basement can use more energy than one in a climate-controlled room. Opening the lid frequently, storing warm food, and leaving space around the items also make the compressor work harder. A full freezer holds cold better than an empty one.

• Keep the freezer in a cool, dry location away from direct sunlight.
• Defrost manually when frost exceeds half an inch to maintain efficiency.
• Check the door seal regularly for cracks or gaps.

Compare with a refrigerator freezer

A chest freezer is typically more efficient than the freezer compartment of a refrigerator because it has a single large door that lets less cold air escape when opened. If you need extra frozen storage, a dedicated chest freezer can be cheaper to run than upgrading to a larger refrigerator.