Is 1124 watts a lot for a portable ac??

Question

about how much would i pay for a month if i use this at night?

Answer 1

Hello Jess Q

1124 Watts is near average for a portable air conditioner, depending on it's BTU cooling rating.  But there are MORE  IMPORTANT  factors to consider.

The simple and easy answer to your monthly cost question is about $27.00 if a few assumptions are made, which are as follows:

Your unit runs continuously without cycling on and off with a built in thermostat.

You have it on for 8 hours per night.

Your Power company charges 10 cents per KWH.  (About average in the US)

That may be all you are looking for, in this answer, but in case you want to learn some technical details on the subject at hand, please read on.

Even more important than the input wattage, is the Energy Efficiency Ratio (EER) of your particular unit.  There is another term you may see, which is SEER. (More on that, in the reference.)

http://www.udarrell.com/airconditioning_...

The EER is a measure of how much cooling you get from a particular wattage input.  The higher the number, the better, and the less electricity will be consumed.  Less than 10 is poor, and 14 or more is excellent in today’s units.

FIRST,  FIND  YOUR  ELECTRIC  RATE

To calculate the monthly cost of running your unit at night, you need to know the cost of electricity from your power company.  This varies from about 6 cents to 15 cents per KWH, depending on where you live, and your particular power company.  The national average in the Continental US is about 10 cents per KWH.  Your specific rate may be on your electric bill, and if not contact your power company.

http://www.enviromath.com/projects/Ch11E...

CALCULATE  MONTHLY  HOURS

Then figure how many hours your unit runs in a month.  If you assume 8 hours each night and 30 days in a month,  that totals 240 hours.  (Assuming unit runs continuously through the night, and does not cycle on and off with a thermostat.)  Your run time would of course, be less, if your unit cycles periodically.

DO  THE  MATH  FOR  YOUR  UNIT

Your unit uses 1124 Watts, which is 1.124 Kilowatts.

Now, simply multiply the Kilowatts by the Hours run, by the

Rate per KWH, and this gives you the cost per month.

240 X 1.124 X 0.10 = $26.97

And finally, here is a link to a web page titled:  How to Economically Air Condition a House

http://www.scn.org/~bk269/airconditioner...