Updated at: 13-06-2022 - By: Sienna Lewis

There are many different varieties of air conditioners, but the 12000 BTU air conditioner is the most well-known. This is a common question, particularly when purchasing a single air conditioner. When used on a daily basis, a 12000 BTU ac generates roughly 900 watts of power every hour of runtime. Heating and cooling systems are among the most often used household appliances.

However, your air conditioner isn’t necessary in places where it’s frigid all year round. We should take a closer look at the BTU, which is a unit of measurement for air conditioners. If you want to know how much electricity your air conditioner will use, you can use the British Thermal Unit (BTU). So don’t stop reading now, my friends, since there’s more to learn!

The Amount Of Electricity A 12000 BTU Air Conditioner Use

A 12000 BTU air conditioner uses how much electricity? On hot, muggy days, many people turn to air conditioners for relief. As a result, it’s a surprise that these devices are so expensive to run. When discussing the amount of electricity that air conditioners use, BTU is something to keep in mind.

6 Best 10,000 BTU Air Conditioners For 300-500 Sq Ft Spaces

The quantity of electricity an air conditioner uses is reflected in the number of BTUs it produces. Every hour, a 12000 BTU air conditioner uses roughly 900 watts.

As a result, we’re leaning toward a SEER minimum rating of 13. The same cannot be said for all 12000 BTU models. In other cases, it would be determined by the specific model and brand. You may see a rise in your bill, and we’ll talk about that as we go forward.

How much would a 12000 BTU air conditioner add up to the bill?

You should expect to pay a lot of money for power if you use an air conditioner, but not all models and types are the same. The annual cost of this 12000 BTU air conditioner is around $400. That manner, they can keep their dwellings at a comfortable temperature. It costs a little over a year’s worth of wages. Even yet, we hadn’t realized how much it would add to our monthly expenses.

When it comes to air conditioners, there are no hidden costs to be concerned about. An air conditioner with a capacity of 12000 BTU is more than adequate for a medium-sized home or business. However, we should keep in mind that it consumes roughly 900 watts an hour, so it’s not cheap to buy and maintain.

How much is 12 000 BTU when used daily?

If you run your 12 000 BTU air conditioner for 8 hours a day, you’ll only pay roughly $34.10 each month. Fortunately, you won’t have to use the air conditioner for the entire day. Possibly only if the weather is hot and the surrounding area is sweltering. Using a 12000 BTU air conditioner, you now know how many watts it can consume. Using the conversion, you can figure out how much you’ll have to pay each month for power.

Where To Buy 12000 BTU Air Conditioner?

As a result of its efficiency and ability to save you money, it may be worth purchasing. You don’t have to worry about finding a 12000 BTU air conditioner because we’ll give you suggestions and possibilities. For your convenience, we offer you two options to choose from. Take a look at these.

Option #1. Go to the appliance center

There are appliance centers in malls and supermarkets that sell appliances that are suitable for use at home. Be mindful of the fact that purchasing air conditioners is easier when you do it yourself. You’ll be able to make a more informed decision about what you buy if you can see it in person.

Only if you live in an area that hasn’t been hit badly by the pandemic can you go shopping at the malls. However, if the pandemic has affected the area, you should take precautions.

Even so, if you’re buying an air conditioner, it’s advisable to do it this manner to be certain of what you’re getting. Anyone in the store, including the store manager, is available to answer your questions and give you additional information. Both the guarantee and the presentation of the warranty are excellent.

Option #2. Buy one online

Air conditioners with a 12000 BTU capacity can be difficult to locate. However, this is precisely why some individuals prefer to buy one online. Your air conditioner might come from a variety of manufacturers, with a variety of names and prices.

Making a choice is always better than settling for the first option that comes your way. If you have the means, go with the more expensive, higher-quality option.

However, if you are on a tight budget, we recommend that you purchase a lot less expensive one that will last you for many years. Don’t take a chance on a low-priced item that could lead you to buy more in the future. Instead, think of it as a long-term investment.

How Much Power Does An Air Conditioner Use? Rough Numbers

Your air conditioner’s energy efficiency can be affected by a wide range of factors. As a result, the figures you receive for your house may differ from those found online. Even though those aspects will be discussed in the following part, let’s first look at some broad data. These, as you might expect, differ according to the model of air conditioner you own.

How Much Power Does A Central Air Conditioner Use?

Between 3000 and 3500 watts per hour, the average central air conditioner consumes in hot weather For the majority of the year, air conditioners in Phoenix and other hot regions can run at this setting. Central air conditioners can use as little as 750 watts per hour when they’re functioning in “fan only” mode.

How Much Electricity Does A Portable Air Conditioner Use?

An average of 2900 watts per hour is used by mid-sized portable air conditioners. Central air conditioners, on the other hand, use roughly 4100 watts of electricity per hour for large units. Learn more about air conditioner sizes and how they’re measured by reading this post.

Window Air Conditioner Energy Usage

Window air conditioners of this size require an average power consumption of about 930 milliwatts per hour. Typical hourly power consumption for smaller machines is 500 watts, while larger ones consume 1440 watts.

Making Cents Of This Data

Now, unless you’re looking to reduce carbon emissions, your primary concern when it comes to energy usage is probably not the nominal wattage statistics. Instead, you’re probably preoccupied with the value of your money. Because of the state’s warm climate and poor air quality, power in Arizona costs an average of 12.8 cents per kilowatt-hour. Calculating your energy costs is a cinch when you have this information at hand. Simply divide your watt per hour estimate by 1000 and then multiply the result by 12.8 cents for every hour your air conditioner actually runs.

Because air conditioners don’t run continuously for long periods of time, this is critical. Rather, they are activated and deactivated as necessary. When your air conditioner is set to the “on” position, you’ll see an unnaturally high usage per hour number because most air conditioners operate for 15-minute cycles as infrequently as twice per hour. When everything is taken into account, the average annual air conditioning bill for Arizonans comes to $400.

Take note that these are Arizona-specific numbers based on typical air conditioner energy use and power rates…. According to your location, these figures may be slightly different. Arizona, Nevada, and New Mexico residents spend roughly twice as much as those in colder states, according to federal data.

Factors That Affect Air Conditioner Electricity Usage

Having given you an answer to the question “how much electricity does an air conditioner consume,” let’s look at some of the more specific aspects that can affect those figures.

Your Air Conditioner’s Capacity

Unsurprisingly, the most important factor in determining energy consumption is the cooling system’s capacity. Measurement is done in British thermal units (BTUs). Depending on where you live and the features of your house, you’ll require roughly 20 BTUs per square foot. The more space you have, the more cooling capacity you’ll need, and the more energy you’ll use.

Your Air Conditioner’s Efficiency Rating

Even if you have the right BTUs, not all air conditioners will be as efficient as the others. Seasonal Energy Efficiency Ratio (SEER) is a rating given to air conditioners. It’s the cooling output divided by the hourly wattage consumed in a given season. The more efficient your air conditioner is, the higher its SEER rating. According to federal standards, a minimum SEER of 13 or 14 is required in your area, however there are units with ratings of up to 25.


In regions like Arizona, you’re going to need a more powerful air conditioner than you would in, say, New York. Those additional BTUs will equate to greater energy usage. Another good idea would be to get a PRV to insure ensure safe operation of all plumbing equipment.

Your Maintenance Routine

You’ll need a more powerful air conditioner in places like Arizona than you would in New York. Increased energy consumption will be the result of using more BTUs. Get a plumbing safety valve (PRV) to make sure that everything works properly.

Temperature Settings

One simple way to improve air conditioner efficiency is by maintaining consistent temperature settings throughout the day. Some manufacturers recommend keeping the unit set to 75 degrees, which is often the default temperature. Setting your air conditioner lower or altering its temperature throughout the day can lead to higher energy usage.


Maintaining a steady temperature throughout the day is an easy approach to increase the effectiveness of your air conditioner. Temperatures of 75 degrees are commonly recommended by some manufacturers, which is the default setting. Lowering or altering the temperature of your air conditioner during the day can result in increased energy use.

How Much Power Does My Air Conditioner Use? Conclusion

Although air conditioners use a lot of energy, the actual amount of energy they use depends on a variety of factors. According to a general guideline of 3000–3500 watts per hour, a central air conditioner can be expected to run for one hour. Window units use 900 to 1440 watts, whereas portable units use 2900 to 4100 watts.

Consult with a local professional before making a purchase to guarantee that you get the best of both worlds from your air conditioner. To learn more about our services, give us a call at American Home Water and Air or fill out our contact form here and check out our FAQs. Service areas for our HVAC and plumbing systems include Phoenix’s Sun City, Glendale, Mesa, Scottsdale, and the rest of the metro area.

How Does One Determine The Efficiency Of An Air Conditioner?

Room air conditioners come with an EER rating, which is a good thing. EER stands for Energy Efficient Ratio, and it refers to a product’s overall efficiency. The EER measures the efficiency of an air conditioner by comparing its cooling capacity to its watts. As a result, a 24,000 BTU [PDF] unit with an EER of 10 requires 2,400 watts (24000/2400).

Air conditioners use a lot of electricity, therefore it’s best to get one with an EER of at least 11. These can be found easily.

A 18,000 BTU air conditioner’s label.

It is just the ‘STD INPUT POWER’ rating on this label that has any bearing on your power bill. This is the watts of the device.

It will not consume as much as the locked rotor current, and the ‘MAX. INPUT CONSUMPTION’ is the initial startup power consumption, not the actual locked rotor current. Ignore your electric bill because it won’t draw more than a few milliamps for more than a few of seconds.

The cooling capacity of an air conditioner is expressed in BTUs, and this is what is meant by the Capacity Btu/h rating. It states that it has an output of 18,000 BTUs. By dividing the BTU/h rating (18,000) by the normal power input rating, we’ve calculated that this unit’s EER is 9.47. (1900). There are better ways to do this. Remind yourself that a higher EER is better!

Keep in mind that R410A refrigerant (marked “REFRIG” on this unit) is better for the environment than R22, because R410A doesn’t deplete the ozone layer as much. R410A is found in nearly all new domestic air conditioners, making it easy to locate. Because R22 refrigerant is being phased out or is becoming more rare, R22 units are becoming more expensive to repair.

Are Air Conditioners Expensive To Operate?

Yes, air conditioners use a lot of electricity, thus they are pricey to run. It would cost far less to run an air conditioner if you only had one room to cool than if you had three or more rooms to cool. The number of rooms in a building is also an essential consideration, but in general, a higher HVAC bill is associated with more rooms.

LG Electronics 12,000 BTU 115-Volt Window Air Conditioner LW1216CER Cools 550 Sq. Ft. with ENERGY STAR and Remote LW1216ER

Your air conditioner’s power consumption is impacted by the type of gadgets you have in your home. For example, if you only have one bulb in each room and no recessed lighting, your lighting usage should be reduced.

A large electric bill, on the other hand, might quickly accumulate if you use numerous high-wattage incandescent light bulbs in each room. The cumulative power consumption of an air conditioner is what determines the cost of ownership.

You can save electricity by only turning on the air conditioning in the room where you plan to spend the most of your day (that could be your home office or bedroom, for example). If you don’t spend too much time in the other rooms, you’ll be fine.

Effect Of Unit Size On Air Conditioner Power Consumption

Depending on the size of the unit, it may have a little lower EER than the average unit. You may end up spending more money on a smaller air conditioner because of your frequent practices.

Small units take long to cool off if used in rooms larger than the recommended size, so you may be reluctant to turn them off because you won’t want to wait for them to cool back off later (this is a terrible waste of energy). To avoid waiting, some people may buy slightly larger air conditioners.

As a result, you may be reluctant to turn off small units since you don’t want to wait for them to cool down again when they are used in rooms that are larger than the recommended size (this is a terrible waste of energy). Some people may purchase slightly larger air conditioners in order to avoid having to wait.

Power Consumption Of Air Conditioners – Ordered By Unit Size

Power Consumption Of 5,000 BTU Air Conditioners (0.41 Tons/1.4 kW)

As a result, you may be reluctant to turn off small units since you don’t want to wait for them to cool down again when they are used in rooms larger than the suggested size (this is a terrible waste of energy). Some people buy somewhat larger air conditioners in order to avoid having to wait.

In general, 5,000 BTU air conditioners need between 446 and 580 watts of electricity to cool the air (most of the units assessed for this average were window units, as 5,000 BTU split units are uncommon).

For college dorms and modest apartments, 5,000 BTU air conditioners are commonly purchased. Window units are the most common type. Window air conditioners are popular since they are easier to install yourself and don’t require any holes in your landlord’s walls to be cut.

Estimated Monthly Energy Usage:

51 to 59 kWh.

$0.12 per kWh is the U.S. national average power rate.

$6.22-2.08/Month / Year

Temperatures of at least 25 degrees Celsius are assumed. Inverter air conditioners are not included here.

You can use our air conditioner search to identify and buy the most energy-efficient 5,000 BTU air conditioners, which are ranked according to their power usage!

Power Consumption Of 9,000 BTU Air Conditioners (0.75 Tons/2.6 kW)

When it comes to power usage, 9,000 BTU air conditioners fall anywhere between 800-900 watts (the higher the wattage, the less efficient the machine is). 9,000 BTU air conditioners are best suited for 350-400 square-foot rooms (this average applies to both window and split units).

When buying an air conditioner for a 350-400 square foot space, you may be able to get away with buying a 10,000 or 12,000 BTU unit instead (please see a professional for advice on this), which will cool the room more quickly.

Keep in mind that buying an enormous unit might damage the operation of the air conditioner and possibly promote mold growth due to excessive humidity.

Because they don’t have to run as long as smaller units (provided you get an inverter model), they won’t cost you much more in electricity than smaller ones. Due to their lower cooling capacity per watt of power consumed, ordinary 24,000 BTU air conditioners use slightly more energy than normal.

Estimated Monthly Energy Usage:

Energy consumption ranges from about 71 to about 95 kWh.

$0.12 per kWh is the U.S. national average power rate.

Between $8.52 and $11.40 each month

Temperatures of at least 25 degrees Celsius are assumed. Both inverter and non-inverter units are included in this category.

You may buy 9,000 BTU air conditioners and use our air conditioner finder to identify the most energy-efficient units based on their energy consumption.

Power Consumption Of 18,000 BTU Air Conditioners (1.5 Tons/5.2 kW)

In the 12,000 to 18,000 BTU range, uncommon air conditioner sizes include 13,000 BTU, 14,000 BTU, and 15,000 BTU, and room size calculations occasionally return figures that don’t match any unit (or highly rare units) on the market (or even rarer) (such as 16,000 BTU).

This means that your installation may propose a somewhat (or even significantly) larger air conditioner if they can only find an 18,000 BTU one.

EER ratings for 1.5-ton air conditioners typically vary from 11 to just over 12, with consumption ranging from 1,470 to 1,614 watts.

Keep in mind that the wattage (assuming they are operating at their highest levels) is not a measure of the total power consumption of the units. to the lowest possible temperature and maximum fan speed. In most cases, the Energy Efficient Rating (EER) is printed on the yellow energy label.

The best is always the best! If you can afford it, go for air conditioners with an EER of more than 12 if you can. Consider purchasing a device with good support, as the difference between 11 and 12 isn’t especially substantial (this entails buying it from a reputable store that offers free repairs within a reasonable warranty period).

Because of this, there are inverter air conditioners in this price bracket, and inverter systems are capable of spending 50 to 60 percent less energy than their non-inverter counterparts under certain conditions (your chances of saving that much increase if you are an A/C regular).

Kompulsa has a page with data on refrigerator power usage grouped by size and configuration if you’re interested in that as well.

Energy Consumption Estimated Monthly:

In the range of 170 to 185 kilowatts

$0.12 per kWh is the U.S. national average power rate.

monthly cost: $20.28 -$22.20

Temperatures of at least 25 degrees Celsius are assumed. Both inverter and non-inverter units are included in this category.

Power Consumption Of 24,000 BTU Air Conditioners (2 Tons/7 kW)

With an EER range of 8.5 to 12.5 for new units, 24,000 BTU air conditioners are less efficient than their smaller counterparts (this applies to both split and window units).

Power consumption ranges from 2,500 to 2,823. While these units have a very low efficiency, they are among the most commonly utilized (possibly because they cool rooms very quickly, as well as the popularity of the open floor plans).

You can use a ‘Kill A Watt’ or similar energy meter to determine and average the power consumption of your air conditioner and compare it to that of current units and the values supplied herein.

Because of this, they remain a viable alternative (not that you have much of a choice, as some rooms require units of this size). They might not want to turn them off because it could take too long for them to cool off upon their return.

As a result, a 24,000 BTU air conditioner’s energy consumption may be less than a 12,000 BTU unit’s (assuming it is used in the same room).

If you live in the United States, a 24,000 BTU household air conditioner consumes an average of 228 kWh/month (according to the Department of Energy), although that isn’t necessarily a requirement. It is possible to fit these units into a smaller space.

This equates to a monthly payment of $27 USD on average. In some cases, an inverter air conditioner can reduce energy consumption by up to 60%.

Electrical Ratings


24,000 BTU air conditioners typically draw between 8.4 and 12.7 amps of current. Labels from the following brands: Pioneer, Senville General Electric Friederich Haier and LG were used to gather this information.

Using our air conditioner finder, you can locate the most energy-efficient 24,000 BTU models. It also gives you an idea of how much electricity you’ll be spending each month. The websites provided allow you to purchase the air conditioners.

Power Consumption Of 28,000 BTU Air Conditioners (2.3 Tons/8.2 kW)

Rooms up to 1,900 square feet can be effectively cooled by 28,000 BTU units (be aware, however, that this excludes rooms in megathermal/tropical climates).

The power of most 28,000 BTU heaters is between 2,800 and 3,100 watts, which is in the 9-10 EER range. The EER of these units isn’t the finest, but larger ones tend to have lower EER ratings than smaller ones, as is the case with the 24,000 BTU.

The most efficient choice is to go with the unit whose EER is the highest and which best fits your space. So, if your room requires 28,000 BTU, you should acquire a 28,000 BTU unit, but go for the most efficient 28,000 BTU one you can afford.

For example, you may use our appliance finder to see how much electricity such units use and get a monthly power bill estimate.

Estimated Monthly Energy Usage:

330-357 kilowatt hours

$0.12 per kWh is the U.S. national average power rate.

Between $39,60 to $42,84 a month.

Temperatures of at least 25 degrees Celsius are assumed. Both inverter and non-inverter units are included in this category.

Reducing Air Conditioner Energy Usage/Cooling On A Budget

You may be concerned about air conditioners’ high energy use after seeing the data presented above, but don’t be. The following suggestions will help you significantly minimize this consumption (which are intended specifically for residential air conditioners, although they may be helpful in other cases).


In order for air conditioners to work well, they must flow air through a large number of microscopic gaps. Make sure your condenser and evaporator fins, filters, and coils are all free of debris. Airflow may be impeded if any of the following components are filthy.

Overheating, decreased performance, and damage to the compressor are all possible consequences of clogged condensers. It’s possible that your air conditioner’s evaporator could freeze, resulting in a drastic decrease in efficiency and making it a useless appliance. When an evaporator is free of obstruction, less electricity is used by the air conditioner.

The filters are the same. In order to clean the condenser and evaporator, which are not user serviceable, hire a contractor.

Inverter Air Conditioners Vs Standard Units

If you’re looking for a quieter air conditioner, go no further than a variable speed air conditioner (VSA). In order to maintain the desired temperature, you can program your thermostat to turn on and off automatically.

On the contrary, inverter units use technologies like PWM and variable frequency drives to vary the speed of their compressors in response to cooling demand.

The same PWM motor control technology is used in some inverter air conditioners with variable fan speeds. At lower speeds (which means lower power consumption and lower noise levels), PWM allows them to work when cooling demand is minimal and they don’t have to operate at full speed all the time.

Inverter units allow you to swiftly lower the room’s temperature because the heater automatically lowers its setting when the unit is turned off (but it will take a moment for the room temperature to change).

Amazon.com: DELLA 10,000 BTU 115V/60Hz Energy Saving Window Air Conditioner, Whisper Quiet AC Unit with Remote, Cools Up to 450 Square Feet : Home & Kitchen

When An Inverter Air Conditioner Is Not Worth It

The extra money invested on an inverter air conditioner isn’t worth it if you rarely use or require it.

Buying a basic air conditioner in these situations

You spend a lot of time at work.

Your home is an airplane. As a result of their frequent travels, some people only return to their hometowns every few weeks or months.

When An Inverter Air Conditioner Is Worth It

With an inverter air conditioner, you can easily increase or decrease the temperature without having to constantly turn the machine on and off. Inverter air conditioners pay for themselves the fastest if you use your air conditioner for long periods of time.

The power consumption of inverter air conditioners can be reduced by 50% to 70% in comparison to non-inverter models, according to several manufacturers. If you live in an area where electricity costs more than $0.20/kWh, the savings are substantial, but in areas where electricity costs less than $0.10/kWh, the benefits are minor.

Inverter air conditioners should be purchased in these situations since they are most likely to pay for themselves within a reasonable period of time.

More than eight hours are spent at home daily.

It’s normal for you to work these hours. All night shifts, presuming that you’re at home during the day, are included in this.

Buy White Curtains

The heat from the sun can be reflected off of white curtains and bounced back into the atmosphere. After it enters your room, sunlight converts to heat, and being exposed to it directly might exacerbate the problem.

Insulate Your House – The Most Effective Option

By keeping heat out, proper insulation can significantly lower the amount of power needed to run an air conditioner. Household insulation, on the other hand, can help you save money on your heating bills by preventing the cold air outside from stealing heat from within. Insulation works by preventing heat from entering or exiting the building.

It is important to know the R-value of insulation, which measures how successful it is at insulating. There is a direct correlation between R-value and your electric bill.

Use A Fan

Set up a stand-alone fan and point it right at your face. The evaporative cooling impact of fans might help you cool down if you raise the temperature of your air conditioner thermostat. If you intend to compensate for the fan’s power consumption by raising the thermostat temperature, only turn it on.

As a general rule, I recommend a 20-inch or smaller standing fan for spaces with a lot of people because it will be quieter and use less electricity. It won’t do you any good if you don’t direct the fan at yourself. Set the fan to oscillate if you don’t like it constantly blowing on you. The 50-100 watt range is typical for the fans I recommend.

For smaller rooms, there are desk fans well under 16″ (you’ll most often see 8″ ones), which may be adequate if you use them on your desk (right beside you) as intended, or if your room is just slightly too warm. I like these since they’re easy to travel from room to room, and I can simply pick them up and go.


It’s possible that desk fans under 16″ (most commonly seen at 8″) would suffice for rooms with less square footage if you use them on your desk (next to you) as designed, or if your room is only mildly overheated. I like these since they’re easy to travel from room to room, and I can simply pick them up and go.

Point The A/C Vent At Yourself, And Turn Up The Thermostat Temperature

For me, it was a huge success. In order to take advantage of fans’ energy-efficient evaporative cooling effect, aim the A/C vent onto yourself if at all possible. This way, the A/C unit will devote a larger portion of its capacity to cooling you rather than the room’s furniture.

This may be one of the more risky choices. For your own safety, it is imperative that you keep the unit spotless.

Set The Thermostat Temperature Wisely

Your thermostat should be set to the highest setting that you can comfortably maintain. Maintaining an ideal temperature requires a longer period of time for the unit to be on. Lower thermostat temperatures force the compressor to pump refrigerant more quickly, increasing power consumption if you’re using an inverter device. In order to save energy, keep your thermostat set at 78 degrees Fahrenheit and turn it down by 16 degrees Celsius, or 8 degrees Celsius for every degree Celsius you lower it.

Cool Only The Areas You Need To

The temptation to “keep the house cool,” as some might phrase it if you had a unit in every room or central A/C, is understandable, but it is expensive. If you’re only going to be in the room for a few minutes, don’t waste energy cooling it down by turning on the air conditioning in the rest of the house.

The 7 Best Energy-Efficient Air Conditioners of 2022

Best Overall: Lennox XC25

The Lennox XC25 is hard to beat when it comes to energy efficiency in a central air conditioner. This air conditioner has been named the most efficient by EnergyStar for 2020 because of its cutting-edge technology.

The Lennox XC25 has several, accurate speed changes in a range of 1 percent increments, unlike many other central units that feature one or two stages with a single continuous speed or two speeds (low and high). It is possible to maintain consistent temperatures even when the device is turned on and off. For example, the XC25 is substantially quieter than similar units because it manages humidity, with varied moisture levels removed depending on the climate (normal regions, dry areas, or coastal).

Runner Up: Amana AVXC20

In terms of SEER ratings, Amana’s AVXC20 is a quiet, high-quality central air conditioner that can assist lower a home’s utility expenditure significantly. Power and speed can be automatically adjusted by special inverter technology to consume less energy once the thermostat temperature has been reached (so that the compressor doesn’t have to work harder than necessary).

An comprehensive warranty is included with the purchase of this product. This year’s most energy-efficient AVXC20 has been awarded by EnergyStar.

Best Budget: Keystone KSTAW05CE

The EnergyStar-rated Keystone KSTAW05CE is a budget-friendly solution to keep cool while reducing your energy use. Typically, highly efficient air conditioners are more expensive. For the size of its BTU output, the 5,000 BTU window unit manages to be surprisingly quiet while still offering several energy-saving features.

A timer, LED display, thermostat that can be programmed, and a remote control round out the list of useful features. The Keystone has a CEER rating of 12.1, which means that the average annual operating cost is $40. However, despite its low price, this air conditioner does not work well in large spaces.

Best Portable: Whynter ARC-14SH

For those who want to lessen their impact on the environment, the Whynter ARC-14SH includes a heater, a dehumidifier, and a fan built in (however, a cooling-only version is available). The 14,000 BTU device can cool up to 500 square feet and uses auto drain technology to recycle moisture during the chilling process.

In addition, it employs R-32 refrigerant, which is 10 percent more energy efficient than conventional refrigerants. When dust or other material accumulates on the air filters, they may be readily cleaned to enhance air quality. The Whynter’s energy-saving features include an exhaust pipe, window kit, and a remote control with a timer.

Best for Small Rooms: Frigidaire 6,000 BTU Window-Mounted Air Conditioner FFRE063ZA1

It’s critical to find an air conditioner that’s the proper size for the area, and larger units aren’t always preferable. In a smaller room, a larger air conditioner will trap more humidity, making the air feel drier. The Frigidaire Energy Star 6,000 BTU is a fantastic choice for rooms between 150 and 250 square feet.

The EER of this 110-volt window unit is 12.1, and the temperature and fan speed may both be controlled via a remote control (or the main panel). Among other features, there is a timer that can be set to run for 24 hours, a sleep mode, and three cooling modes.

Best Window: LG Electronics 14000 BTU Dual Inverter Window Air Conditioner with Wi-Fi Control

The LG 14,000 BTU window air conditioner has a CEER rating of 14.7, is up to 25 percent more efficient than the EnergyStar criteria, and was awarded the EnergyStar 2018 Emerging Technology Award for its twin inverter technology.

An additional benefit to the unit’s low noise level is that it costs only $68 per year to run. Even when you’re on the road, you can modify the temperature of your car’s air conditioning system using a remote control, touch panel, or Google Assistant or Amazon Alexa. It can chill an area of up to 800 square feet with R32 refrigerant, which LG utilizes in its unit.

Best for Large Rooms: Senville SENA-24HF/Z Mini Split Air Conditioner

Other cooling options include mini splits, which switch from cooling to heating when the temperature drops. In most cases, they have a ductless design that is attached to an outer wall to transfer heat from inside to outside. With a SEER rating of 20.5, the SENA-24HF is a great mini split that can cool a 1,200- to 1,450-square-foot room with ease. Heating (for the cooler months), dry, and turbo modes are included in the 24,000 BTU EnergyStar certified device.

Finally, it’s compatible with Google Home and can be controlled via WiFi or a remote. Self-cleaning, a built-in dehumidifier, a thermostat controlled by a remote, and a leak detector for refrigerant are all included features.

In order for the refrigerant tube to reach the interior air handler, it must be routed through your wall, and the unit must be hard-wired into your home’s electrical system. Get a quote from a licensed installer if you’re unsure about handling those tasks yourself.


How much does your electric bill go up with an air conditioner?

When it comes to keeping their houses cool, people in Arizona spend an average of $400 each year. Larger properties, of course, will necessitate more powerful air conditioners that are more expensive.

Do air conditioners use a lot of electricity?

Probably the most energy-consuming device in your home is the air conditioner. That’s especially true in the Southwest of the United States, where air conditioners are commonly used throughout the year.

How much does it cost to run an air conditioner all day?

Your air conditioner’s kilowatt-hour usage determines the cost. The cost of a kilowatt hour of electricity in the United States is approximately 12 cents. Not to mention that “operating your air conditioner all day” may not mean exactly what you think it does. As little as twice an hour, air conditioners can run on cycles of 15 minutes or less. For a properly-sized unit to do its work, it won’t need to be always running.

LG Electronics 450-sq ft Window Air Conditioner (115-Volt; 10000-BTU) ENERGY STAR in the Window Air Conditioners department at Lowes.com


A 12000 BTU air conditioner uses how much electricity? According to our research, a 12000 BTU air conditioner uses 900 watts of power per hour to run. Using it for 8 hours a day, every day, for a year would set us back about $1,500. Try looking up how much it costs to run a window air conditioner for articles like these. Nothing more.