Inverter vs non-inverter air conditioners – major difference and technicalities

Published on


When it comes to choosing an air conditioner (AC) for your home, understanding the main difference between inverter and non-inverter ACs can help you make a better decision.

As both types have their own benefits and drawbacks, and the best choice depends on your specific needs and circumstances. Let’s break down what each type offers and help you decide which one might be better for you.

Air conditioner

What is an inverter air conditioner?

An inverter air conditioner uses advanced technology to control the speed of the compressor motor, which regulates the temperature more precisely.

Here’s how it works:

  • Constant adjustment: The inverter adjusts the speed of the compressor motor based on the temperature needs, rather than switching on and off like a non-inverter AC.
  • Energy efficiency: By maintaining a consistent speed, inverter ACs consume less power, leading to lower electricity bills.
  • Quieter operation: These units operate more quietly because the compressor doesn’t have to turn on and off frequently.
  • Longevity: The gradual and steady operation of the compressor can lead to a longer lifespan of the unit as the compressor gets time to relax.

What is a non-inverter air conditioner?

A non-inverter air conditioner has a compressor that runs at a fixed speed.

It turns on when the room temperature rises above the set level and turns off when the desired temperature is reached.

Here are its characteristics:

  • Fixed speed: The compressor works at full speed and then stops when the target temperature is met, cycling on and off repeatedly.
  • Initial lower cost: Non-inverter ACs are generally cheaper to buy than inverter ACs.
  • Higher energy consumption: Because the compressor is either running at full power or not at all, these units typically use more electricity.
  • Noisier operation: The frequent starting and stopping of the compressor can make non-inverter units noisier.

Comparing the two: Which is better?

Energy efficiency:

Inverter ACs are more energy-efficient than non-inverter ACs. This efficiency translates to lower electricity bills, making inverter units more cost-effective in the long run despite their higher upfront cost.

Performance and comfort:

Inverter air conditioners provide more consistent and precise temperature control, which results in better comfort. The steady operation avoids the fluctuations in temperature often experienced with non-inverter units.


  • Initial Purchase: Non-inverter ACs have a lower initial cost, making them more accessible for those on a tight budget.
  • Operating Costs: Inverter ACs, although more expensive initially, cost less to operate due to their energy efficiency. Over time, the savings on electricity bills can offset the higher purchase price.

Durability and maintenance:

Inverter ACs, with their smooth and continuous operation, tend to have a longer lifespan and may require fewer repairs compared to non-inverter ACs, which experience more wear and tear from the constant on-off cycling.

Noise levels:

If noise is a concern, inverter ACs are generally quieter, providing a more peaceful environment.

Conclusion: Which should you choose?

Your decision should consider both your immediate budget and long-term needs:

  • Choose an inverter air conditioner if:
    • You are looking for long-term energy savings.
    • You want quieter and more consistent cooling.
    • You are willing to invest more upfront for lower operating costs.
  • Choose a non-inverter air conditioner if:
    • You have a limited budget and need a more affordable initial purchase.
    • You do not use the AC very frequently (like 2–3 hours maximum daily) and hence are less concerned about energy efficiency and noise levels.

In summary, while inverter air conditioners offer many advantages in terms of efficiency, comfort, and noise, non-inverter air conditioners can be a practical choice for those with budget constraints and who wish to use for very short duration. Understanding your specific needs and usage patterns will help you make the best decision.

Leave a Reply

Your email address will not be published. Required fields are marked *