Just based on the specific heat of air vs. other solid masses, I would think that very little energy is actually lost during brief door openings.
So what are you doing to improve your refrigerator performance?
We are planning to purchase a chest freezer to be placed in our garage, but we are going to wrap it with 2-3" rigid foam which I am guessing will about double the insulation factor for it.
So what are you doing to improve your refrigerator performance?
That's exactly the question I didn't ask myself before starting....
Currently - we have a crude prototype to trap cold air and prevent it from "falling out." If anything, it's a quantitative result on how much energy is lost from opening the door
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Time is the best teacher. Unfortunately it kills all its students.
trebuchet03 
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