In the spirit of Tesla's commitment to improving society, I have an open source idea for any builders/businessmen out there: There's an old quip about a salesman being so good that he 'could sell ice cream to eskimos'. Oddly enough, that quote is 100% true. Every person who can afford a refrigerator/freezer owns one, even if they live someplace where it is sometimes/often/or almost always colder outside than they want it to be in the 'fridge/freezer. Solution: a vent with a fan and a temperature actuated switch from the refrigerator to the outside. Note - Refrigerators consume a great deal of electricity and run all day, every day, even when it's -30 F outside. I have a specific design in mind. Feel free to contact me for details.