It is derived by taking the btu measurement and dividing that by the power consumption in watt.
Window type air conditioner wattage.
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Small room size air conditioners generally in the 5 000 to 6 000 btu range will draw between 5 and 7 amps of power.
People often buy 5 000 btu air conditioners for college dormitories and small apartments.
In most cases these are plugged into a wall socket that is serviced by a 15 amp breaker.
They are usually window units.
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Typical wattage for a window air conditioner is between 900 and 1 500 watts.
This unit s eer would be 10.
But rough estimates for how many watts an air conditioners uses are.
Learning center a c heating window air conditioners electrical requirements for window air conditioners kara zorn on may 12 2014 71 comments before purchasing a window air conditioner it is important to note the electrical requirements as window a c units are typically more powerful than standard household appliances.
Best window air conditioner for large rooms.
If the window air conditioner you have uses more watts than a comparable product then it will have a higher eer or seer number and therefore cost more the use.
The wattage of 5 000 btu air conditioner units averages 446 to 580 watts most of the units assessed for this average were window units as 5 000 btu split units are uncommon.
Extension cords are rated by the number of amps they can handle however so you have to convert the wattage to current.
Central air conditioner 3500 watts central a c fan only compressor off 750 watts largest window units 1440 watts.
For a small bedroom a 5 000 btu window unit should only use 450 watts a mid size 8 000 btu ac should use fewer than 715 watts a big 14 000 btu air conditioner should only use 1 250 watts even the least expensive units we researched for our review of the best window air conditioners got a score of 11 and all of our picks were rated 12 or 12 1.
A 12 000 btu unit has surge wattage of 3950 watts and a running wattage of 3250 watts.
The temperature you set the window air conditioner at can also impact the amount of electricity the unit uses.
To do this simply divide by the voltage displayed on the label which should be 120 volts.
As an example let s say you have an air conditioner that s rated to 6 000 btus and it takes 600 watts to run.
A 10 000 btu unit has surge wattage of 1800 watts and a running wattage of 1200 watts.
Because the amperage draw is low other small household appliances can use the same socket as the air conditioner.