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The chest is more efficient than the upright, as noted.
When you open an upright door, the cold air flows down and out. With a chest, it stays inside, to some degree.
Unfortunately, it is hard to find a self-defrosting chest, for some reason.
The largest models do not use that much more energy than the small ones.
I bought an 18 or 21 cu. ft. model and have been very happy with it, except for the frost.
I suspect that with minimal opening and closing, a full chest would stay cold with four hours or more per day of power.
You fill up the empty space with 2 liter bottles of water. They will help keep it cold and can be taken out and either drunk, or used in smaller coolers to keep their contents cold.
TR
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"It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who neither know victory nor defeat." - President Theodore Roosevelt, 1910
De Oppresso Liber 01/20/2025
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