Maximizing your use of a window ac unit.
How much energy does an ac window unit use.
Power cost because you are billed for units of kilowatt hours you need to estimate how long the unit will run.
Check out this post to learn more about air conditioner sizes and how they re measured.
And as you discovered the answers depend on both the efficiency of the appliance and external factors that may be out of your control.
In other words it is a measurement of how efficient and how much energy your ac unit uses to cool the room.
Eer is a measurement of how many btus the unit uses for each watt of power consumed.
This will depend on the unit s size and seer rating.
The standard eer for most air conditioners is set at 10 0.
Window air conditioners start at about 100 for a small 5 000 btu unit that will cool up to 200 square feet.
Given that an average price of 1 kwh in the us is 0 1319 you can save quite a bit if you invest in an above average energy efficient air conditioner.
For example we will use a 16 seer air conditioner.
If central air conditioning isn t an option for your home or apartment finding the right window unit can help keep you comfortable in the warmer months without breaking the bank.
The higher the eer number the more efficient your air conditioner is.
A good estimate for a medium sized window or wall air conditioning unit is 900 watts.
The smaller models use around 1 400 watts or 5 000 btu hr.
The electricity usage of these units generally is less than that of a central ac.
Window air conditioner energy usage.
The power consumption of 9 000 btu air conditioner units ranges from 800 900 watts if a 9 000 btu a c unit consumes more than 900 watts it is inefficient and you should look for a better model.
Electricity states a window unit uses anywhere from 500 to 1440 watts to run while a 2 5 ton central unit about the size for a typical 1 500 to 2 000 square foot home uses about 3 500.
How much does a window unit cost.
Particularly large units can exceed the electricity usage of even central air conditioners expending about 4100 watts per hour.
Mid sized portable air conditioners use an average of 2900 watts per hour.
First determine the amps drawn by the unit.
1500w unit for comparison spends 1 5 kwh of electricity per hour.
In this post you learned how much electricity does a window ac use and how much does it cost to run a window ac unit.
9 000 btu a c units are recommended for rooms that are 350 400 square feet this average applies to both window and split units.