A 20-year old refrigerator will cost more per month to operate than a new refrigerator. This is because of the increased efficiency of compressors and the higher quality insulation value found in newer model refrigerators.

A 20-year old refrigerator will cost more per month to operate than a new refrigerator. This is because of the increased efficiency of compressors and the higher quality insulation value found in newer model refrigerators.