Quote:
Originally Posted by Daox
How is this possible? The ice is simply a transfer medium. Where are the losses?
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The losses are in the freezer, 2/3 of the energy that a freezer uses are turned in to heat and all of that heat stays in the house.
A pound of ice takes 144 BTUs to melt it, Window A/C tend to be 6,000 to 9,000 BTU.
Part of the reason that I stopped using my furnace fan to move the "cool" from the basement is that the furnace fan draws 600 watts, or 2,000 BTU and that I am better off running a 600 watt air conditioner.
On that same line of thought, 144btu in the pound of ice is 42 watt hours, my window fan set on low is around 40 watts, so the heat from the fan on the bucket would have to melt more then a pound of ice per hour to not add heat to the house.