Remember the old side by side refrigerator-freezers from the '70's? They usually came in one of two colors, avocado or gold. Those puppies would take 10,000 watts of electricity a day. They were all designed back in the '60's when energy was cheap. Efficiency was of no importance at all. Plus, they had an electric heater that came on in the refrigerator for 20 minutes out of every hour, keeping it "frost free."