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When buying a specific capacity Window A/C, do you want to buy something with a high EER , or, low running AMPS ?

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When buying a specific capacity Window A/C, do you want to buy something with a high EER , or, low running AMPS ?

wrote:
Ive noticed units that are 115 v. at high EER's (energy efficiency
ratio) such as 10.5 but they draw higher amps . And ive noticed 230
v. units of the same capacity at a lower EER such as 9.5 ... yet they
draw as much as half the running amps that comparable 115 v. units
do. Its my understanding that its amps that spin the electric meter,
so, since i have both 115 and 230 volts available as a power source,
which is going to use the least electricity in the example above ?
thanks.

At double the voltage you draw half the amps to do the same job. It actually
is watts that makes the meter spin. With a few technical variants, multiply
amps times volts to get watts. You will see that both A/Cs will draw about
the same for the same specs, the more efficient one will draw less for the
same cooling.

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