What Is Dual Inverter AC, and Why Are Dual Inverter ACs Proving Popular?

what is dual inverter ac

These days, you’ll find there are numerous types of air conditioners on the market, and deciding which one best suits your needs may be challenging.

But with the current cost of electricity, many of us are looking for systems that won’t cause our bills to skyrocket. If you’re looking for a new system for your home, you may want to consider investing in a dual inverter AC rather than window air conditioners.

For those who haven’t heard of such systems before, in this post, we’ll tell you more about what is a dual inverter AC.

So, What Is Dual Inverter AC Technology?

You’ve probably seen quite a few advertisements from some leading advanced-form AC systems manufacturers. The companies claim these systems cool rooms quickly, have a longer lifespan, and save you money.

Does it sound too good to be true? Well, it isn’t! The introduction of dual inverter technology has been a real game-changer when it comes to air conditioning systems. You’ll soon discover for yourself if you do decide to install such a system in your home that it comes with a number of benefits.

Unlike the regular inverter air conditioner system you may already have installed in your home, this one uses dual inverter compressors rather than one. Also, each of the rotary compressors inside has been set up to operate at a phase difference of 180 degrees.

Each compressor inside a dual inverter air conditioning system is powered by an advanced Brushless DC Electric motor. Including such inverter technology in these systems means they can work continuously and have variable energy consumption, so their demand for power is less.

Including the BLDC motor in the dual inverter systems provides it with a much better working mechanism than the normal one. This is because it comes with a much more extensive range.

Also, you’ll find these types of inverter ACs don’t produce as much noise, as they can manage vibrations better when the system is working at maximum speed.

How Does a Dual Inverter AC Work?

air conditioner on the wall

With its twin compressors, this type of AC system can maintain a variation of 180-degree compression timing.

As a result, you’ll find it’s more durable and stable when in operation, which means it will have a longer lifespan.

Another great thing about this type of system is its variable tonnage feature. Tonnage is the amount of power used to remove a certain amount of heat over an hour. The higher the variable tonnage, the more power will be used in order to help remove the heat.

With twin compressor air conditioning systems, the amount of power used is less. However, this depends on how hot the room in which it is placed has become.

For example, if the unit you’re looking to use has a maximum tonnage of, say, 8 tons, it can work at 5 tons in a small room, where the heat will be less.

What you will find with a regular AC unit is that it’ll stay working at 8 tons no matter what the heat load happens to be. This is because it doesn’t have the facilities to be able to adjust the amount of power it uses automatically.

So this is why the installation of, say, an LG dual inverter AC will help to keep the costs of running such a system down.

What Is a Smart Dual Inverter AC?

As you’ll soon discover, there are many different types of dual inverters regarding these air conditioners. A few are known as Smart dual inverters.

A Smart dual inverter AC includes a sensor inside of it. The kinds of sensors they put inside these are used to help monitor the temperature or the humidity in a room.

With the inclusion of such, these types of AC systems can adjust how they operate automatically based on what the conditions outside are like.

You’ll also find that you have the ability to be able to control this type of AC system remotely through an app that you can download onto your smartphone or tablet.

With this type of smart dual inverter AC, you can turn the system off when you don’t want it running.

7 Advantages to Investing in a Dual Inverter AC

As you’ll see below, there are a number of benefits from choosing to get a dual inverter system installed in your home over other current AC systems.

1. Better Efficiency

You’ll find that a dual inverter AC is more efficient than the traditional models. These can achieve the same amount of cooling and use much less power, so your monthly electricity bills won’t be as high.

A good quality dual inverter air conditioning unit is around 50% more energy efficient compared to others.

2. Low Noise Levels

These types of air conditioners are much quieter than others.

The reason dual inverters produce less noise is the compressors inside are only in operation when needed: they can adjust their power usage without needing to be continuously on through the night. Therefore, the amount of wear on the conditioner is greatly reduced.

As the dual inverter ACs produce less noise, they also provide a more relaxing atmosphere in your home.

3. Cool Rooms Quickly

Installation of a dual inverter AC can cool a room up to 30% faster than a conventional AC can.

They cool rooms quicker because the two compressors allow them to work more efficiently.

4. High Durability

You’ll find that these types of air conditioners are much more durable, resulting in a much longer lifespan.

This is because they don’t need to work as hard for them to provide the same level of cooling. You’ll find they last for several years without the need for any large repairs or the need to be replaced.

They can withstand wear and tear a lot better, making them the ideal air conditioning unit for your home.

5. Improved Air Quality

Installation of a dual inverter air conditioner will help improve the air quality in the room. This is because dual air conditioning inverters are designed to help remove dust mites and other allergens that would normally circulate the room.

Additionally, a dual inverter split AC has the ability to reduce the number of bacteria in a room, if used on a regular basis. This is one reason why people suffering from asthma or allergies should consider installing such devices in their homes.

Finally, a dual inverter air conditioning system improves air quality by keeping rooms cleaner and not recycling stale air, which usually happens with traditional air conditioners.

6. Extra Comfort

Unlike traditional air conditioners, these types of air conditioners can be customized to suit your needs. Not only can you alter the speed of the fan, compressors, and evaporator, but a good-quality dual inverter unit allows you to monitor the temperature in a room, allowing you to auto-adjust the device.

Additionally, the twin rotary compressors are very efficient to provide maximum comfort.

7. Environmentally Friendly

You’ll find that these types of twin rotary compressor air conditioners are more environmentally friendly compared to traditional air conditioners. They use less power and produce far fewer greenhouse gasses, making them much better for the environment now and in the future.

4 Disadvantages of Dual Inverter ACs

air conditioner installation

These types of air conditioning devices are becoming extremely popular today because they are energy efficient and perform well.

But, while they offer several benefits, it’s important to be aware of some of the drawbacks to owning such equipment before making that all-important purchase.

1. Cost

One of the biggest flaws with getting a dual inverter AC unit is the cost. You will find they have a much higher price compared to other air conditioning units. In some cases, these types of AC units can cost up to 50% more than conventional models.

The reason for such a high price tag is the advanced design. Also, they include more advanced technology inside to operate effectively.

2. Installation

Due to their advanced technology, installing such equipment yourself can be more complicated. In most cases, they require special wiring and a larger circuit breaker. A specialist may need to come in and install the equipment.

You’ll need to factor in this cost unless the shop where you purchase your inverter offers to do this for free.

3. Maintenance

You’ll find these units require frequent maintenance, as the units both inside and outside your home need to be cleaned regularly. Any build-up of dirt, dust, or debris inside of these units can prevent them from running as efficiently as they should.

If any problems arise with these units, you’ll need to seek assistance from a skilled technician to inspect and carry out any repairs.

4. Unsuitable for Small Rooms

Often, most dual inverter ACs aren’t suitable for keeping small rooms cool.

If you’re looking for something to keep a home office space less than 5m sq. cool, you should consider investing in a different type of AC unit.

So it’s important when you’re considering investing in any dual inverter air conditioner for your home to consider not only their benefits but also their flaws. This way, you can make a more informed decision as to whether investing in a particular unit will meet your needs.


Can a dual inverter save electricity?

When you turn on a conventional air conditioning unit, it needs a surge of power in order to get it working. It will then continue to use as much power as needed to work until it has reached its full capacity, and the temperature inside the room has reached its desired level.

However, you’ll find that when it comes to a dual inverter AC unit, it doesn’t actually turn off as a traditional AC unit does. Instead, it will still be running but at a much lower speed, which helps to save electricity.

Plus, as these units don’t turn off as a conventional air conditioner does, it means that they don’t need that spike of power that we discussed above to get them going again.

How much energy does a dual inverter AC use?

How much energy one of these units consumes depends on the star rating, tonnage, and the size of the room where you’ve chosen to install it.

For example, if you were to invest in a 1.5-ton 5-star dual inverter AC unit, this would be using around 835.5 watts per hour.

Remember – when buying such equipment for your home, buy one suitable for the size of the room in which it will be installed. Going for one that is suitable for the room will ensure that it is able to get the temperature down a lot faster. In turn, this will mean far less electricity will be needed to run it.

Am I going to need a voltage converter?

You’ll only need a voltage converter if the voltage in your home fluctuates beyond the range suitable for the unit you’re installing.

If you aren’t sure about the voltage fluctuations in your home, you can check this using an amperemeter. You can easily purchase such devices at your local hardware store or online.

Also, you can always arrange for an electrician to come and check the voltage in your home.

Who makes dual inverter air conditioners?

At the time of writing this article, several well-known companies make such units for use in the home and business premises.

Along with the likes of Lennox, Bryant, Carrier, and Trane, you’ll also find well-known brands such as LG, Haier, Midea, Daikin, Samsung, and Friedrich producing such equipment.

Which Brand Should You Consider?

Of all the brands we’ve mentioned above, the best ones to consider when buying a dual inverter AC system for your home are Samsung, Daikin, and LG. These companies are known for making high-quality, durable air conditioning units.

When it comes to spending money on any dual inverter air conditioning unit, then the above three brands are the ones you may want to consider. Let us explain why.


This is a well-known company that has been producing electronic equipment for many years now. You will find that this is the only company that can offer you such units with three different capacities. You can opt for their 0.75, 1, or 2-ton models.


This is a trendy brand that now offers you a wide range of air conditioning products that come with a range of features and different prices. So you will likely find one from this company that suits your budget.

LG Electronics

This company has been making air conditioning units since 1958. Their dual inverter AC can cool rooms at lower speeds than standard single-speed units. They also use much less energy.

Let’s Wrap Things Up

As you’ll have seen above, dual inverter air conditioners offer a great range of benefits you won’t find with conventional air conditioners.

Before considering investing in such equipment, take time to look at the situation from all angles. It would help if you looked closely at your cooling requirements and how much you can afford to spend on equipment.

You may consider visiting a local hardware store to see such equipment in action, also. Spending a little time reviewing each potential unit you’re considering could save you a lot of time, trouble, and money in the future.

However, it’s worth reading customer reviews before you make any purchases.

Also, suppose you’re still unsure whether investing in a dual inverter air conditioning system for your home is the right option. In that case, it will not hurt to contact a local experienced HVAC technician to help you make that all-important decision.

Indeed, carrying out plenty of research is crucial when it comes to investing in any such equipment for your home.

We hope you found this article helpful if you’re wondering what dual inverter AC systems are. Please, let us know what you think of this article and whether you’ve chosen to invest in a dual inverter AC system for your home.

If you have, which make and model did you chooser?


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