Does a Window Unit Air Conditioning Use More Wattage Than a Refrigerator?

Considerations

• A watt is a measurement of energy. The higher the wattage, the more energy an appliance or equipment needs to perform a task. However, fair comparisons are difficult. The smallest window air conditioning unit operating 24 hours a day may cost $56 a month to operate, compared to just $8 a month for a refrigerator. However, while refrigerators are always on, a person may use a window air conditioner for only several hours a day or even less.

Operation

• Refrigerators and window air conditioners require more power at start up than during regular operation. That is why turning a window air conditioner on and off is more expensive than maintaining a constant temperature. Energy demands for refrigerators and air conditioning units can fluctuate because of conditions. A refrigerator without much food may require more energy to operate because refrigerators retain cold better when they are full, according to the California Energy Commission. A window air conditioner will work harder to cool an area if the room is not well insulated.

Efficiency

• Some window air conditioning units and refrigerators are more energy efficient than others. Some models meet energy efficiency guidelines established by the U.S. Environmental Protection Agency. Savings on utility bills are not dramatic on a monthly basis, but can add up over time. An Energy Star-qualified room air conditioner could result in a savings of $60 over the life of the unit when compared to other models, according to the EPA. Energy Saver features help an appliance optimize performance, resulting in less wasted energy.

Tips

• Resist buying a larger window air conditioner unit than you need. Follow manufacturer recommendations to purchase a unit that is the right size for your room. Larger units cost more to operate than smaller units. Store gallon jugs of water in the refrigerator if you don’t have enough food to keep the refrigerator full. Use the same strategy for the freezer compartment.