Join Date: Feb 2010
Thanked 17 Times in 15 Posts
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And it is not run off a battery bank.
When power is available easily from the wall plug power consumption is meaningless....
The point is that even maintaining a 100+˚C temperature differential isn't all that hard to accomplish with only a few inches of insulation. Granted, fancy lab freezers like that at quite pricey ($5K to $10K), so they probably have pretty fancy insulation. But (as I recall) they don't draw that much more electricity than your standard household freezer (once they get down to -80˚C), and they still only cycle about 50% of the time. The trick is keeping them full and keeping them closed.
I will grant you that the more insulation a freezer/refrigerator has, the better. But, once there is more than four inches or so, particularly around the sides, I doubt that you really gain a lot by adding more insulation.
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