>
>  50kWsec = 0.833 KWminutes=0.0138 KWhrs=0.1 cents per cooldown
>
>  Also, as you say, I doubt that all of the air fully exchanges in a
>  typical door opening. The thermal mass of all the other stuff in there
>  will do two things: 1) make it so that there is less air 2) make the
>  compressor have to turn on and off less. Other than that, it will not
>  change the average amount of energy needed per cooldown, as whatever
>  cooling effect you get from the cold food has to be recuperated by the
>  compressor.
>

So the problem is much worse for empty refrigerator?
One more reason to keep it always full of beer :)

-- 
KPL
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