Are 2 Small Refrigerators Better than One Large One
From Open Source Ecology
- According to [1], a 15 cu ft takes about the same energy as a 5 cu ft.
- Does that include fridge opening?
- Logic says: most fridge energy escapes when a fridge is opened? No, only 7%? [2]
- Right- energy loss of opening fridge door is minimal - see [3]. That is because energy density of air is low, so you don't lose much heat - less than $1/year if you open it 14,000 per year.
- So why do horizontal fridges save 12x the power? See [[4]] It appears that it is the added insulation that chest freezers have - which makes for superefficient freezer to refrigerator conversions.
Examples
- 5 cu ft - 335 kwhr [5]
- 10 cu ft - 300 kwhr [6]
- 20 cu ft - 430 kwhr [7]
