I have a 9000 BTU portable air conditioner for my room. It has about 115 volts. Does this take up a lot of electricity?
2007-08-06 11:24:22 · 4 answers · asked by misa 1 in Science & Mathematics ➔ Engineering
Look at the nameplate of your AC unit for an amperage or wattage value. Assuming you don't have that information, here are some other comments.
Since the portable unit has a 115 V plug, the maximum load is 12 amps. This is because NEC Section 210-21(b)(2) limits the load on a 15 amp plug to only 12 amps.
12 amps x 115 volts = 1380 watts. Call it 1400 watts or 1.4 kW.
For a new portable AC unit, the minimum energy efficiency rating (EER) that can be sold in the US is between 8 and 9. This value varies depending on the unit's cooling capacity.
9,000 BTU ÷ 8 = 1125 watts
9,000 BTU ÷ 9 = 1000 watts
Let's assume the actual load is somewhere in the middle and call it 1100 watts or 1.1 kW
Look at your latet electric bill to determine the cost of energy. The cost per kilowatt-hour (kWh) is generally in the range of 10¢ to 15¢. Though some cities can be as high at 25¢ or as low as 5¢.
Without better data, I will assume your energy costs are 15¢ per kWh. This means that your AC unit will cost 15¢ / kWh x 1.1 kW = 16.5¢ per hour of operation.
2007-08-06 14:41:32 · answer #1 · answered by Thomas C 6 · 7⤊ 0⤋
RE:
Does a portable air conditioner use up a lot of energy or electricity?
I have a 9000 BTU portable air conditioner for my room. It has about 115 volts. Does this take up a lot of electricity?
2015-08-04 05:02:09 · answer #2 · answered by Cassie 1 · 0⤊ 0⤋
Portable Ac Power
2016-09-28 05:26:30 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Just so you guys know how lucky you have it, here in San Diego electricity is almost cost prohibitive, for air conditioning
It is 17 cents a kWh for the first 300kwh then from 300 to 375 it rises to 29 cents and beyond 375 it is 38 cents per kWh.
2015-09-16 05:20:34 · answer #4 · answered by sobmaz 2 · 0⤊ 0⤋
The label on your air conditioner should state how many watts it consumes - probably between 1000 and 1500 watts. The relationship between volts, amps, and watts is W=V*A, so knowing the volts only is not sufficient to know the total energy consumption.
So find the label that tells you how many watts your appliance uses (or amps, and use the formula to convert to watts. Then multiply the watts by the rate you pay for electricity to find out how much it is costing you per hour. For example, if your appliance is using 1000 watts and you are paying 8 cents per kilowatt hour, the answer is 8 cents per hour (kilowatt is 1,000 watts).
Hope that helps!
2007-08-06 12:20:29 · answer #5 · answered by minefinder 7 · 2⤊ 0⤋
It is no difference than an equivalent AC mounted on the job, just that this one has wheels and has an air duct to dissipate the heat, since it's not at a window. The new design can be as efficient
2007-08-06 11:30:24 · answer #6 · answered by vlee1225 6 · 1⤊ 0⤋
Go to the following site to know what you must know before buying air conditioners:
tinyurl@com/airconknowledge (Replace @com with .com)
For any questions, contact the staff.
2014-08-08 03:59:30 · answer #7 · answered by Anonymous · 0⤊ 0⤋
is not worth it my 3 ton ac use 4.0 kw but stop every 20 min and my lg 9000 btu use 1.8 kw but never stop is the same use
2014-06-02 13:53:08 · answer #8 · answered by Sin 1 · 0⤊ 0⤋
2,638 watts
So it costs about 25 cents an hour to run.
2007-08-06 11:30:34 · answer #9 · answered by Anonymous · 2⤊ 3⤋