Quote:
Originally Posted by jeff5may
The diy guys have found that hacking a deep-freeze to run at fridge temps is ultra-efficient as all get out. The secret is that the top opens, keeping the cold inside the box. Remoting the heat source is near useless, as there is very little heat generated at all. Typical usage is 100 to 200 watt hours per day.
But here's the punch line: none of these super efficient fridges are anywhere near cheap. As always, you get what you pay for.
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Yeah, the front opening SunFrost R10 uses 170 watts per day...
Part of their secret is ultra insulation, another is that the compressor & coil are on top, so the refrigerator is not bathed in its own waste heat.
I'm really surprised that nobody on this forum has actually built a converted chest freezer/refrigerator. It's pretty cheap, it is known to work really well.
There have been avalanches of posts about putting bottles of water in refrigerators and carefully monitoring results looking unsuccessfully for some sign of reduced energy... but no conversion.
-AC