Any reviews or comments on the ecube energy saver
it is supposed to work on commercial refrigeration or freezers.....
/>(also supposed to work on refrigerated trucks)
I had a look & it seems that their energy saving claims are
unrealistic. The premise is that it allows the refrigeration system to
read a temperature (via its wax cube) that is close to what the food
temperature is. I can see to a certain degree that if you had a quick
acting thermostat that cycled every time someone opened the door, that it
would reduce unnecessary compressor starts -- but the energy saving part
doesn't add up. If, without the ecube you use more energy, you also extract more heat & make the fridge colder. I doubt this happens because the thermostat would just turn off the compressor. As for the cycling, a well designed cooling unit should have a thermostat sensor that has enough mass that it reads the average temperature & does not respond to temporary drafts of warm air when the door opens. Also note that web searches turn up mostly press releases & customer testimonials, & zero studies. Some of these testimonials even state that their equipment is already lasting longer. I doubt this product has been around long enough to determine statistically if it is improving the life of equipment. So, I can see that for some specific refrigeration units with poorly designed or positioned sensors that it might have some small benefits, I can not see massive 30% energy savings without a corresponding increase in food temperature & the risk of large losses from food spoilage & food poisoning. I would wait & see - not so much to save a few dollars, but to avoid the risk of food spoilage. If poor thermostat behavior is truly a problem, all the HVAC & equipment vendors will start offering redesigned sensors.
I like it.
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