"JAXAshby" wrote in message
...


the 6,500 output is TOTAL output, which = input + heat removed.

No. The ratings are based on how much heat transfer the unit will do, not
what the output is. What a useless number the heat output would be! When a
contractor needs to select a A/C unit he doesn't care how much heat is
blowing out the coils on the outside of the house, he cares about how much
heat he has to get out of the room.

The EER rating is where the input power is brought into the equation.



Also, I used the figure the HVAC industry uses.

What do you mean by "the figure" ??


1000 watts should be 56.89 BTU/minute, or 3413 BTU/hour.

so I hear, but the 3,012 (sometimes 3,014) is the number used by the HVAC
industry.

So you are derating on some "rule of thumb" basis.


amps used per hour times voltages IS watts per hour.


Yes, but you left off the "per hour" part.

In your first post, you said:
quote:
"An a/c unit will use about 1,400 watts electricity input to remove every
1,000
watts of heat."
unquote.

Will you please back those numbers up?

Your 1400 Watts of input power is equivalent to 80 BTU/minute (1400 watts /
17.58 watts per btu-minute) or 4800 BTU/hour. The 1000 watts of heat
removed = 3412 BTU / hour.

I maintain that the BTU rating of an A/C unit is a measure of its ability to
remove heat from the room, not how much heat it shoves outside. Thus, the
EER of your example would be 3412 BTUh/1400 watts = 2.44. That would be an
awful number!

Even using your explanation of the rating being the output power, the EER
would be (4800 BTU input + 3412 BTU removed) / 1400 watts = 5.8. That is
still a bad number.

Typical EER ratings are from 8 to 10. Why are you assuming an EER so much
lower?

Rod