Updated at: 14-06-2022 - By: Sienna Lewis

As a general rule, you’ll need to know how much power is required to run a 3-ton air conditioner. Since a kilowatt (kW) is equal to 1000 watts, a 3-ton air conditioner would require around 14 kilowatts (14000 watts). Electricity powers air conditioners, and as a result, a plethora of measurement units are commonly used.

To determine how much power is required to run a certain appliance, such as an air conditioner, one unit is the watt or the kilowatt. There’s still a lot to learn about this subject, so keep reading!

Number Of Watts Used By A 3 Ton Air Conditioner

3 ton air conditioner uses how much power in terms of watts? The tonnage or weight of an air conditioner is what most of us look for when making a purchase. However, further information, such as the wattage required to make it operate, is required. The British Thermal Unit (BTU) is a metric unit of heat that may be converted from tons. In other words, it can improve conversion rates.

Power Consumption of AC | How Much Power Does An AC Use?

If you have any questions, please don’t hesitate to get in touch with us. Depending on the sort of air conditioner you are using, a 3-ton air conditioner unit consumes a variable amount of power. Each of the three forms of this will be acknowledged and discussed in detail. A comparison of three different 3-ton air conditioners, each with a different set of specifications and wattage requirements, is presented below.

Type #1. 3-ton central air conditioner

The heat output of this machine is 36 000 BTUs per hour. It’s big enough to chill a 1,800-square-foot home. Only those in the southernmost regions or states are affected by this. It takes roughly 3500 watts per hour to run this 3-ton air conditioner and provide good service.

However, it is highly suggested for homes in the Midwest and Northeast. These 3-ton units are best suited for a square area of between 600 and 2100 square feet.

It’s fine if you’re looking for something that can handle a lot of weight, as long as it can help you. Because it uses the greatest power, the 3-ton air conditioner with this wattage can be considered the most significant and fastest in terms of cooling speed.

Type #2. 12000 BTU window unit

Quite a bit of it is thought to be a lot. However, some of these might weigh up to three tons, depending on the materials. This particular air conditioner is categorized as a mid-sized unit. The second one is smaller than the previous one, in terms of size. Because it is smaller and has a BTU rating of roughly 12000, it differs from the first in a little way.

If you have a single-spaced room in your home, you can utilize this to chill the space down. Whole cooling flats and larger rooms are best served by twelve thousand window units, as long as they are bedrooms. It’s not suitable for usage in function halls because it doesn’t have the capacity to handle the area and the width.

For your information, these 12k units can make 400 sq ft rooms cool considering as low end and about 600 ft sq if it is high end. A total of 1200 watts per hour is all that these 12k units are consuming. Approximately half of the original type we had. Although it appears to be less expensive, the first option is preferable for larger rooms while this one would do for smaller ones.

Amount Of Watts On Generators To Sustain This 3-Ton Air Conditioner

Our air conditioners need electricity, and we know that not all the time there is a power that can help us have a more comfortable existence. Because of their portability and ease of use, portable air conditioners are a well-known and respected tool all over the world. In order to get your money’s worth, you’ll need to invest in a generator with enough BTUs to run your air conditioner.

For a 3-ton air conditioner, you will need one generator with at least 6500 watts to provide power on your air conditioner. It is unnecessary to buy a generator, which is optional because these tools can be costly. Other than that, you have to maintain it and make sure that it is working from time to time.

How Much Would A 3-Ton Air Conditioner Cost?

At least a 6-500 watt generator is required for a three-ton air conditioner to function. It is unnecessary to buy a generator, which is optional because these tools can be costly. Otherwise, you’ll need to check on it periodically to make sure it’s still functioning properly.

How Much Does It Cost To Run an Air Conditioner?

The Cost Equation

For a 3-ton air conditioner, you’ll need a generator with at least 6500 watts to power it. As an option, a generator may be purchased; this can be expensive, thus it is not necessary to do so. It must also be maintained and regularly checked for proper operation aside from those tasks.

Please note that the figures below are based on average electricity prices in Ohio and are not intended to be all-inclusive. In the event that you reside in a different state, you’ll probably want to look into the specifics of your own rates.

Take Columbus, Ohio, as an example; you want to know how much it will cost to run your air conditioner.

What if your AC is running for 10 hours a day since it’s hot outside? (during a 24 hour period).

In Columbus, Ohio, the current average cost per kilowatt hour is $12.65.

Isn’t that a rip-off? Well, we’re ready to toss in some greater figures.

Important Equipment Numbers Needed

Total amperage is used to power air conditioners. What you need to know:

  • 15 amps for a 2 ton AC
  • 3 Ton AC Equals 18 amps.
  • A four-ton AC power supply draws 21 amps

In addition, it is important to know that air conditioners use a normal 240 volt power outlet. If yours is different, make the necessary adjustments. ‘

Now that we have these figures, we can figure out how much total watts is being used. And now for the fun part: the numbers game! As an example, let’s look at a normal three-ton air conditioner.

Four thousand and three hundred and eighty watts.

To calculate your kilowatt-hour use, multiply this number by 1,000.

4.32 kilowatts of electricity are consumed every hour for 4,320.

Calculating Using Your Electricity Costs

In the meantime, let’s have a look at the electricity costs!

In Columbus, the cost of a kilowatt hour is 12.65 cents, which works out to 54.65 cents an hour.

In other words, if you stick to the numbers above, a normal three-ton air conditioner will cost you 55 cents an hour to run.

Even if it doesn’t seem like much, little things like this soon pile up. Let’s do some more arithmetic and see what we come up with.

It costs 55 cents to run the air conditioner for one hour x 10 hours a day = $5.50 per day to run the AC unit.

For the sake of argument, assume it’s hot for 30 days out of the month. So:

Running your air conditioner for 10 hours a day costs $5.50 per day x 30 days = $165 a month.

When you add this to the various fees associated with electricity, your monthly power bill can quickly balloon.

Variables To Consider

Change the figures above to figure out how much it will cost you to run your air conditioner if you live in a different state or have a different cost per kilowatt hour.

Remember this:

The 7 Best Energy-Efficient Air Conditioners

The relationship between air conditioners and modern consumers is a tumultuous one. In hot climates and during heatwaves, they save lives by providing respite from the summer heat and allowing us to live comfortably.

Despite this, they are also harmful to the environment because they contribute greatly to the degradation of the world in two primary ways. To begin, running an air conditioner needs a significant amount of energy, and until all of our houses’ electricity comes from renewable sources, doing so means burning fossil fuels. It’s also important to note that hydrofluorocarbons, which are commonly used in air conditioners, are highly potent greenhouse gases that can be released during repairs or disposal. It’s critical to properly dispose of an old air conditioner when it’s time to get rid of it.

As a positive development, manufacturers are working on innovative ways to make air conditioning more environmentally friendly, but there is still a long way to go. You may make the most difference when searching for a new air conditioner by looking for one that consumes less electricity. The most efficient units now use roughly 30 percent less electricity than ordinary units, reducing your utility bills and lowering your carbon footprint. You may also reduce your carbon footprint by using some low-tech ways to cool your home and keeping the air conditioner off for a longer period of time.

In terms of energy efficiency, these air conditioners are leading the pack right now.

Best Overall: Lennox XC25

In terms of the most efficient central air conditioning equipment, the Lennox XC25 is hard to beat. This air conditioner has been named the most efficient by EnergyStar for 2020 because of its cutting-edge technology.

The Lennox XC25 central air conditioning system has various, accurate speed changes in a range of 1 percent increments, unlike many other central air conditioning systems that have either one or two stages with one continuous speed or two speeds (low and high). As a result, even when the unit is turned on and off repeatedly, the temperature remains stable. 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).

Acquiring a Basic Knowledge of Energy Ratings

Before purchasing an air conditioning equipment, consult the professionals at EnergyStar for guidance on how to get the most out of your investment.

Efficiency can be measured in three ways: by looking at EER, CEER, and SEER ratings. Cooling systems are rated on their Energy Efficiency Ratio (EER), with an EER of 12 being considered a good one. The Department of Energy’s 2014 window unit standard, known as the Combined Energy Efficiency Ratio (CEER), takes into account energy consumption when in use (EER) as well as standby power. Central air conditioner efficiency is measured using the Seasonal Energy Efficiency Ratio (SEER). Central air conditioners have a SEER rating, whereas individual room air conditioners have EER or CEER ratings. The more stars a product has, the more effective it is.

To quantify how much heat is removed from the air, air conditioners have a BTU (British Thermal Unit) rating. A more powerful device will have a larger BTU rating.

Runner Up: Amana AVXC20

For those who are looking to save money on their utility bills, the new Amana ACXC20 has a SEER rating of up to 24.5, making it one of the most efficient central air conditioners on the market. Allowing the compressor to work less when it reaches its specified temperature, inverter technology makes it possible for the power and RPM levels to be automatically changed.

A lengthy warranty is included with the device. This year’s most energy-efficient AVXC20 has been awarded by EnergyStar.

3 Ton Rheem 14 SEER R410A Air Conditioner Split System (Classic Series) | National Air Warehouse

Best Budget: Keystone KSTAW05CE

The Keystone KSTAW05CE, an EnergyStar-rated air conditioner, is a cost-effective alternative to the more expensive but less energy-efficient Keystone KSTAW05CE. An energy-saving mode, sleep mode, three fan settings, and sleep mode are all included in the 5,000 BTU window unit.

In addition, there is an LED display, timer, and remote control for added convenience. The Keystone has a CEER rating of 12.1, which means that the average annual operating cost is $40. There are certain drawbacks to using the air conditioner in a large room.

Best Portable: Whynter ARC-14SH

Aside from the heater, dehumidifier, and fan, the Whynter ARC-14SH is lightweight and equipped with various other features that help lessen the unit’s environmental effect (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.

R-32 refrigerant is also used, which uses 10% less energy than alternative refrigerants. When dust or debris accumulates on the air filters, they may be readily cleaned to help maintain a higher standard of air quality. Exhaust hose, window kit, and remote control with a timer are all included in the Whynter.

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

Larger air conditioners aren’t necessarily preferable when it comes to matching a room’s size with an appropriate air conditioner. Smaller rooms tend to retain more humidity than bigger ones, resulting in a sticky feeling in the air. The Frigidaire Energy Star 6,000 BTU is a fantastic option for rooms that are 150 to 250 square feet in size.

This 110-volt window unit has an energy efficiency rating (EER) of 12.1, and the temperature and fan settings may be simply controlled via a remote control (or the main panel). In addition, a 24-hour timer, three cooling rates, and a sleep mode are included.

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

EnergyStar 2018 Emerging Technology Award winners include an LG 14,000 BTU window air conditioner with twin inverter technology that has a CEER rating of 14.7 and is up to 25% more efficient than required.

There’s less noise than most (just 44 dB), and the annual operating cost is only about $68. Even when you’re on the run, modifying the air conditioning settings is a cinch thanks to a remote, touch panel, or Google Assistant and Amazon Alexa. R32 refrigerant is used in the LG unit, which can chill an area of 800 square feet.

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

Other cooling options include mini splits, which switch to heating when the temperature dips. In order to transfer heat from indoors to outdoors or vice versa, they are usually mounted on an exterior wall in a ductless design that conserves space. With a SEER rating of 20.5 and the ability to cool rooms ranging in size from 1,200 to 1,450 square feet, the SENA-24HF mini split is a great DIY option. 24,000 BTU unit is EnergyStar certified, as well as dry, turbo and heating modes.

Additional features include WiFi connectivity (or remote control) and Google Home compatibility. Self-cleaning, a built-in dehumidifier, a thermostat controlled by a remote, and a leak detector for refrigerant are all included features.

For a minisplit, the refrigerant tube must run through your wall from the outer unit to an air handler inside your home, and the unit must be hardwired into your home’s electrical network. If you don’t feel confident completing the work yourself, consider hiring a qualified contractor.

How to Use an Air Conditioner Economically and Save on Your Electric Bill

When it comes to keeping cool and conserving money, there are a plethora of inventive options available. But when the summer heat really sets in, it may be advisable to turn up the air conditioning. It’s possible to keep your cool both physically and financially if you know how to get the most out of your air conditioner.

Closing vents and rearranging furniture are less expensive but still efficient alternatives to the standard ice fan hack. This summer, we’ve put together a list of 13 easy-to-follow suggestions to help you save money on your air conditioning bill.

1. Don’t confuse your thermostat

Central air conditioners may be intelligent, but they have no idea what is producing the heat; they only know that it is too hot. Items like lamps, TVs, and other devices can grow heated, and placing them next to an air conditioner or thermostat might cause the air conditioner to believe the room is warmer than it actually is, according to Melbourne, Australia-based appliance repair and installation firm 21 Celsius

2. Cover up your AC unit

If your air conditioner is exposed to the sun, it will not perform as well as it would in a shady place. In order to avoid overheating, 21 Celsius suggests employing an awning or some other sort of shade.

3. Clean your filter

An overworked air conditioning system might be caused by dirty air filters. According to Daikin, a well-maintained air conditioning system saves money in the long term by replacing and cleaning the filter regularly.

4. Refrain from heat-producing activities

Cooking and baking, according to Brandi Andrews, CEO and creator of National Air Warehouse, are major sources of excess heat in the home. If you don’t want to overtax your air conditioner, you may also keep your house cool by using your oven only when absolutely necessary. Eat foods that don’t need to be cooked, so that you don’t have to generate any heat yourself, she advises. Wait until nightfall, when it’s usually cooler outside, to do things like cooking, ironing, or running the dishwasher if you have to do them.

5. Don’t fidget with your thermostat

When it comes to cooling a room, Andrews recommends sticking to one temperature and sticking to it. So, she advises, “just leave your thermostat at a beautiful, comfortable setting.” If you wait long enough, the temperature will drop to a comfortable level. While you wait, sit in front of a fan. Using a fan in conjunction with your air conditioner can actually assist chill the space!”

6. Check your humidity

“The majority of consumers believe that their HVAC equipment is sufficient to meet all of their home or apartment’s heating and cooling demands.” Ferguson HVAC Category Sales Specialist Jeff Spencer explains, “You should also consider the humidity level in the living space.” “Comfort is impossible without adequate humidity. It’s like when you walk into a doctor’s office and it’s very cold because they’re eliminating a lot of humidity from the conditioned atmosphere. What’s the answer? If you want to keep the temperature down, Spencer recommends a dehumidifier.

7. Don’t go overboard closing off vents

Shutting too many vents might have a negative effect on the overall efficiency of your heating and cooling system. The idea that you may save money on your cooling bills by blocking off and closing the vents of a room you don’t use is a common misconception, according to Spencer. While this may be true, your system was built to fulfill the requirements of your full house.” As long as you don’t seal off too many vents, your system will be less effective and efficient in the long run. Make sure there is no furniture blocking any vents in the unoccupied room by closing the blinds and locking the door.”

8. Check your installation and service your unit

When operating with a well-maintained machine as opposed to one that has been neglected, you will notice a difference in your electric cost. Running an AC system inefficiently is as simple as letting the cool air out. A yearly checkup of your insulation can save your AC system a lot of wear and tear, as well as cut your utility costs. Wesley Martin, owner of JH Martin Mechanical, believes that even a minor leak can have a significant effect.

9. Get a programmable thermostat

“This is an excellent purchase if you are going to be gone for significant amounts of time during the day. Keeping a house at 80 degrees on a 90-degree day requires far less energy than keeping it at 72 degrees, which consumes more energy. According to Martin, letting your air conditioner’rest’ only makes sense if you’ll be away from home for at least five hours at a time.

10. Inspect your ducts

Cool air will not be as frigid if your ducts are clogged, filthy, or no longer properly insulated. Calling a local HVAC company is your best and safest bet in most cases if you’re going to try to fix the problem yourself.

11. Rearrange your furniture

Even if it sounds foolish, when it comes time to put up your new couch or bed frame, keep air flow in mind. Check to see if any of your furniture is blocking the path that cold air takes to enter your rooms by sitting on top of your central air vents. There’s no downtime required, and the results are immediate.

12. Turn it off when you leave

Even while it’s wonderful to come home to a cooled apartment, running the AC while you’re away can end up costing you money. In order to keep your home from feeling like an oven, close the windows and lower the shades when you leave.

13. Don’t forget the fan

Cool air from your air conditioner will go farther if you utilize a fan. Placing a few strategically around your home can keep the breeze circulating and is much less expensive than blasting the air conditioning all day.


What size generator do I need to run a 3 ton AC unit?

A 14 KW generator is required for a 3-ton (30-Amp, 36,000 BTU) air conditioner. A 17 KW generator is required for a 4-ton (48,000 BTUs, 40-Amp) air conditioner.

Will a 7500 watt generator run central air?

During a lengthy blackout, a 7,500-watt generator is ideal for powering most of your home’s essentials. Because a 7,500-watt generator can power a central air conditioning or heating system, it is the most significant reason to get one.

How many kwh is a 3 ton AC unit?

As an example, let’s look at a normal three-ton air conditioner. Four thousand and three hundred and eighty watts. To calculate your kilowatt-hour use, multiply this number by 1,000. 4.32 kilowatts of electricity are consumed every hour for 4,320.

How many watts does a 3.5 ton AC use?

The air conditioner in a typical 2,000-square-foot home is 3.5 tons. When cooling, an AC of this size consumes roughly 3,500 watts per hour. The fan-only mode of a central air conditioner consumes around 750 watts of power per hour.

How many amps does it take to run a 3 ton AC unit?

The capacity of an 11.18-amp air conditioner in ton BTUs. 24,000 BTU/ton Amplifiers 7.45 volt-amperes 30,000 BTU / 2.5 Ton 3.0 Ton 36,000 BTU, 9.32 amps Amps: 11.18 3.5 Tons, 42,000 BTU, 13.04 Amps.

Will a 5500 watt generator run central air?

A 5500-watt generator is powerful enough to run a home’s air conditioning system, however Although a 5500-watt running generator theoretically could power a small central air conditioner (which is modern and energy efficient), we prefer an emergency window air conditioner because 5500-watt generators may have insufficient starting power.

Carrier 3 Ton, 13 SEER, Air Conditioner Condenser, 208/3

What size generator do I need to run my AC and refrigerator?

At a minimum, you should acquire a generator with 1,800 watts of rated power capacity. Generators rated at 7,500 and 9,500 start-up amps are recommended for homes with a total power consumption of 6800 and 8200 watts, respectively.

What will a 3500 watt generator run in a house?

Essential appliances can run on 3,500 watts in the event of a power outage. In order to run a refrigerator, freezer, and lights, most homeowners will need to use at least 1,000 watts of electricity.

How much of a house can a 6500 watt generator run?

All of the most typical household appliances can be powered by the 6,500-watt generator.

Will a 12 000-watt generator run a house?

Generating power for a whole house is possible starting at roughly 12,000 Watts of power. Almost anything you can plug into an outlet will work, including lights, fans, TVs, freezers, computers, and even space heaters.

How many amps does a 3.5 ton AC draw?

A bit over 30 amps at 240 volts is what you’re looking at. The needs of several units will be different from one another. As previously stated, this is merely a generalization. The actual wattage will vary depending on the temperature outside and the thermostat setting in the house.

Will a 12000 watt generator run a 4 ton AC unit?

The Champion Power Equipment 100111 15,000/12,000-Watt portable generator. For a 5 ton unit, you can’t go wrong with Generac. With 4 tons of AC power, the Champion Power Equipment 100111 is a cost-effective solution.

How big of a generator do I need to run central air?

An average central air conditioner consumes 12,000 BTUs per hour or 3,500 Watts of power. To be on the safe side, you should choose a portable generator with an output of between 6,000 and 6,500 watts when paired with this standard.

Will a 12000 watt generator run a 3 ton air conditioner?

A 12,000-watt window unit consumes 1200 watts per hour, while a three-ton central air conditioner needs 3500 watts per hour.

How many square feet will a 3.5 ton AC unit cool?

Unit Size: 1,650-1,800 square feet (Ton) 3.5 Ton 1,650 – 1,800 sq. ft. Cooling Capacity Square Feet 3 ton 1,400 to 1,600 square feet

How many watts is a 4 ton AC?

On the other hand, the actual quantity of Watts required for a 4-ton air conditioner depends on its make and type and how frequently it is used. It takes around 14,000 watts, or 4 kilowatts, to operate. You should always utilize a 17-kilowatt generator if you’re going to use a generator.

How much electricity does a 3 ton heat pump use?

One ton is equal to 12,000 BTUs. Heat pumps can remove 36.000 BTUs of air per hour with a 3-ton model. A 7.200-watt start-up power supply and a 5.400-watt operating power supply are required for such a heat pump.

How many amps does a 24000 BTU air conditioner use?

Up to 20 Amps can be drawn by a 2-ton central air unit.

How many amps does a 4 ton AC draw?

There is no minimum or maximum draw for a 4 ton 13 SEER heat pump condenser unit.

How long will a 5000 watt generator run on 5 gallons of gas?

Using only 5 gallons of gasoline, a generator can run for about 8 hours. Make no promises with this amount of fuel.

Will a 7000 watt generator run central air?

An AC equipment that requires a large initial burst of electricity, such as central air conditioning, will not start on a 7000 watt generator.

Will a 9000 watt generator run a house?

Most of your appliances can be powered with a 9,000 watt generator. You may use it to power your lights, washer, dryer, microwave, fridge, coffee maker, range, and even a tiny central air conditioner. A 9,000-watt generator can power many appliances at once.


3 ton air conditioner uses how much power in terms of watts? This is a common concern when going shopping. If you know how many watts your appliances use, you can determine whether or not you made a good purchase. The greater the wattage, the greater the charge. Are you interested in learning more about the wattage of an air conditioner? Find out how much power an air conditioner consumes in an hour by reading this article!