E-Star freezers - how so efficient ?
How are Energy-Star appliances such as chest freezers so much more efficient than non E-Star ones ? I have looked at E-star appliances side by side, and see no visual difference ( such as thicker, more insulated walls ) . I suspect the components are just higher quality and made to be more efficient.
Also, after looking at a 5 cu.ft. chest freezer, versus a 8 - 12 ft. model, I see that per square foot of interior space, the larger 10 -12 sq.ft. models are around 30 % more efficient, yet having to cool a larger area within the frig.
Why is this ?
( Both models being the same brand and rating - E-Star / non E-star )
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