What is a Dual Inverter AC?

Air conditioners are necessary if you want to survive the summers here in India, right? There are numerous types like the non-inverter AC, inverter AC and dual inverter AC. What’s the difference between a dual inverter and inverter AC? Aren’t they the same?

Well, if you think that, you may be mistaken. Both inverter and dual inverter ACs may be related, but they’re not the same. Read the insights in this article if you want to know what a dual inverter and an inverter AC is.

What is a Non-Inverter AC?

This is what you may already know about. A non-inverter AC obviously comes without the inverter feature. But that’s just not it. There is a major difference between these two types of air conditioners. In a non-inverter air conditioner, the compressor motor always runs at a static speed.

It’ll either run at its full potential or will stop altogether. But this is not the case with an inverter air conditioner. In an inverter air conditioner, the compressor motor alters the speed according to the current it gets. If there’s no electricity, the AC will run at a low speed consuming less power.

What is an inverter AC?

Inverter AC is a great invention if you want efficient cooling during the summers. According to what you need, the inverter AC changes the power and speed of the compressor. This way, you only get the cooling you need and thus use energy efficiently. This is not available in a common air conditioner.

This tweaking in motor speed and power makes the inverter AC different from a normal AC. Now, what makes an inverter AC different from a dual inverter AC. The inverter AC has one rotary compressor. On the other hand, a dual inverter AC has two rotary compressors.

Unlike non-inverter ACs, the inverter ones come with BLDC motors. This motor helps in altering the compressor speed according to the requirements.

What is Dual Inverter AC?

The dual inverter gets its name from the ‘twin rotary compressor’ it features. The Dual Inverter AC is composed of two compression chambers. These chambers help to produce a phase difference of 180 degrees in the compression timing.

This phase difference leads to less sound, less vibration, and better efficiency. This feature is what makes dual inverter ACs one of the most stable equipment out there. Another lucrative feature it brings along is temperature control.

You’ll experience a slow decrease in the room temperature until the set temperature is achieved. Once the set temperature is achieved, the AC automatically begins to use less power. And by using less power, it maintains that temperature. Ultimately, it helps in saving a good amount of electricity.

You can understand its efficiency by looking at the below example: –

Say you have a 1.5-ton dual inverter AC at home. Now, according to the requirements and the power supplied, your AC can lower the tonnage to 0.26 tons or increase the tonnage to 1.71 tons. The tonnage is used to determine how big is the room in size.

When you consider a normal 1.5-ton AC, it’ll always use the same tonnage no matter what. Whether your room is small or big, it won’t matter. And in the case of a dual inverter AC, it molds itself according to its surroundings and uses the power accordingly.

Dual Inverter AC Vs Inverter AC

Here we will compare both the dual inverter AC and the inverter AC based on some common factors. This way, you can easily make out the differences. Here we go: –

Cooling Experience 

  • Inverter air conditioners come with BLDC motors. Such motors help in decreasing or increasing the speed of the compressor according to the demands. And when the demand changes, the speed of the motor changes too.

In this way, inverter ACs provide better cooling even when they’re not operating at full potential.

  • With dual inverters, you’ll find something more advanced than the BLDC motors found in inverter ACs. This is what sets apart the dual inverter AC. The advanced motor helps in faster cooling and at a better operating frequency.

Energy Used

  • Inverter Air conditioners are more efficient than normal ones. The BLDC motor is efficient as it alters the speed according to the requirements.

However, the frequency of rotation in the inverter ACs is quite high, and the operating range is lower than the dual inverter ACs. And this makes inverter ACs less efficient as compared to dual inverter ACs.

  • Dual inverters, on the other hand, are even more efficient than the inverter ACs. It’s mainly because of the twin compressors it comes along with.

Such air conditioners have a low frequency of a rotation and a wider operating range. All in all, dual inverter Air conditioners are a step ahead of the normal inverter ACs.

Noise Produced

  • Common inverter air conditioners come with a single cylindrical rotary compressor. As the rotation speed is too high, the sound produced is high too. It’s because there is somewhat less stability as compared to the dual inverter ACs.
  • On the other hand, for the dual inverter air conditioners, the noise produced is very little. It comes with dual rotary compressors. Also, it produces a phase difference of 180 degrees, which delivers a significantly silent operation.

So, in general, inverter ACs are silent as compared to the common ACs. But when you compare inverter ACs with dual inverter ACs, the latter wins the race.


Common Air conditioners may help you with summers but prove to be non-efficient in the long run. It’s the main thing you should know about upgraded models. Take inverter or dual inverter ACs, for example. Such ACs are costlier than normal ones but bring along numerous benefits.

You can read through some basic info described above and understand why inverter and dual inverter ACs are beneficial. You can also find what makes inverter and dual inverter ACs different. If you find the above enough easy to learn or useful, do share it with others. Also, keep coming back for more.