Well, What I mean by more than 100% is that the amount of heat removed from the RV is greater than the amount of heat that would be generated if you passed the same amount of electricty through a resistor.
In truth, you are right, it's not over 100%,
Try this... How much enegery would it take to, oh, say, grow a bushel of corn
How much would it take to move that same bushel from the store to your car?
The AC, in cooling mode, does not, as it's job, generate heat (actually it does, but tha't s not what you are paying it electricity to do) it moves it from one spot to another... Very efficently.
GENERATING heat, (A job that, by the way, is always 100% efficent) is another matter... Not moving it, making it. and does, accurately follow the calculations given I will try to find some web pages between now and next go round
Found it faster than I thought... Here is the relevant quote:
"Energy Efficiency of Room Air Conditioners
A room air conditioner's efficiency is measured by the energy efficiency ratio (EER). The EER is the ratio of the cooling capacity (in British thermal units [Btu] per hour) to the power input (in watts). The higher the EER rating, the more efficient the air conditioner. National appliance standards require room air conditioners built after January 1, 1990, to have an energy efficiency ratio (EER) of 8.0 or greater. "
and here is the URL if you wish to read more:
http://www.eere.energy.gov/consumer/your_home/space_heating_cooling/index.cfm/mytopic=12420
As you can see, they are talking about room air conditioners here and requireing them to move EIGHT times as much enegery as that formula calculates,,, For every "Btu equivlent" watt they eat, they have to move 8 BTUs of enegery. Very possible, because they are not changing it from one form to another, they are moving it from one PLACE to another. all together different kettle of heat I'll keep looking