6 Best 1.5 ton highest ISEER rating AC in India 2023

Best 1.5 ton highest ISEER rating AC in India

In this post, we are going to discuss everything related to Best 1.5 ton highest ISEER rating AC in India. AC efficiency is measured by the Indian Seasonal Energy Efficiency Ratio (ISEER). ISEER measures the cooling capacity of an air conditioner in relation to its power input. In general, an air conditioner with a higher rating uses less energy. Thus, when purchasing an air conditioner, it is important to consider the ISEER and BEE star ratings.

It can be quite difficult and time-consuming to pick the right air conditioner. Generally, air conditioners use a significant amount of energy, which brings up many questions in a buyer’s mind. Where can I find the best 1.5 ton split inverter AC?, What is the most energy-efficient AC? What type of AC is energy-efficient? and others.

So, if you plan on buying an air conditioner and have many questions, this article is exactly what you need. All the important factors that you should consider when buying an air conditioner have been compiled into one place. The star label may also be useful when searching for the best 1.5 ton inverter Split AC.

Based on the ISEER values of the ACs available in the market, we reviewed a lot of options. After much confusion regarding air conditioners and their overall features, we selected the top 6  1.5 ton highest ISEER rating AC in India 2022.

What is ISEER Rating?

ISEER rating is calculated by taking the cooling seasonal total load into account, a measure of the heat removed by the air conditioner. The ISEER is equal to Cooling season total load (CSTL) divided by Cooling season energy consumption, ‌i.e., 1600 hours in temperatures between 23°C and 43°C.

However, EER, short for Energy Efficiency Ratio, is another method of rating. Air conditioners are measured according to their EER by dividing their BTU (British Thermal Unit) by their wattage. For instance, the EER rating of a 12,000 BTU air conditioner powered by 1,000 watts is 12 (12,000/1,000 = 12).

What is the difference between EER and ISEER value?

Difference Between EER and ISEER Value. In other words, a measure of an air conditioner’s efficiency is the EER or SEER. In general, an AC unit with a higher EER or SEER will be more efficient.

EER ValueISEER Value
An international standardIt has been approved by the Indian government
Air conditioners without inverters ratedRatings for inverter air conditioners
The number of hours does not depend on the seasonSeasons play a huge role in this
There is no change in value around the worldChanging Indian temperatures
In comparison to ISSER, ISER is less accurateHigh accuracy compared to EER

List of the best highest ISEER rating 1.5 ton AC in India

Other than being energy efficient, different manufacturers offer additional features, making things even more complicated. Thus, we came up with a list of all best air conditioners available in this category (highest ISEER rated) considering price, feature and reputation of brands with focusing on the energy efficiency. A detailed description of the highest ISEER rating 1.5 ton AC in India, along with their pros and cons are also mentioned, which can help you make your decision easily. For you ease we have made a table of comparison table of AC’s with their ISEER Ratings and annual power consumption.

NameISEER RatingAnnual Power ConsumptionBuy Now
Daikin 1.5 Ton 5 Star Inverter Split
5.8667.36 Kilowatt Hours Per YearCheck Prices
Sanyo 1.5 Ton 5 Star Dual Inverter Wide Split AC4.7840.75 Units per yearCheck Prices
LG 1.5 Ton 5 Star DUAL Inverter Split AC4.67 818.81 Units per year Check Prices
Toshiba 1.5 Ton 5 Star Inverter Split AC4.69835 to 890 Units Per YearCheck Prices
Blue Star 1.5 Ton 5 Star Inverter Split AC4.66887.69 Kilowatt Hours Per YearCheck Prices
LG 1.5 Ton 5 Star Wi-Fi Inverter Split AC4.73890 Kilowatt hours Per YearCheck Prices

Moreover, to make your life a little bit easier, the links of the mentioned products are also attached respectively, so that you can all that you want in just a click. Now, let’s dive right into the list of the best 1.5 ton highest ISEER rating AC in India.

01. LG 1.5 Ton 5 Star DUAL Inverter Split AC (ISEER-4.73)

LG 1.5 Ton 5 Star DUAL Inverter Split AC

With this AC, you can enjoy cool air without spending a lot on your electricity bill. With the goal of reducing energy consumption, this LG Split AC comes with 5 Star energy rating. Furthermore, it uses 1565 Watts. By using this LG Split AC, you will be able to reduce your electricity bill.

Thus, you will be able to get a good night’s sleep and wake up feeling refreshed..

These modes will allow you to adjust the cooling capacity and temperature of the AC according to your preferences.

 The cooling can be turned down to 40% and increased at your convenience. The device is said to be equipped with anti-virus filters that deactivate viruses and bacteria that come into contact with it. Featuring an ocean blackfin condenser coil, it promises to protect it from dust, sand, smoke, humidity, and chemicals.


  • Very quiet and very efficient ac, one of the best on the market.
  • This product is suitable for medium-sized rooms.
  • This product is suitable for medium-sized rooms.
  • ISEER Value: 4.73.
  • Energy Consumption per Year: 818 units claimed by LG.


  • ACs must have horizontal swing as a basic feature.

02. Toshiba 1.5 Ton 5 Star Inverter Split AC (ISEER- 4.69)

Toshiba 1.5 Ton 5 Star Inverter Split AC

It can be great to have a Toshiba 1.5 Ton 5 Star Inverter Split AC in your home. With a variable speed compressor, the power is adjusted according to the temperature. One of the lowest-noise air conditioners, it is one of the most energy-efficient.

Due to its copper condenser Aqua Resin Coated coil, dust is reduced, resulting in a longer coil life. There is little maintenance required with the Toshiba 1.5 Ton air conditioner – it does not deplete the ozone layer or contribute to global warming.


  • It inhibits the reproduction of pathogenic bacteria and viruses with Toshiba’s IAQ technology.
  • It features self-cleaning capabilities. It prevents the formation of odours & mould on the filter, and therefore requires less maintenance.
  • The ISEER score is 4.69, making it the best in the industry.
  • With 35dB of noise, it operates quietly.


  • Compressors on the market have warranties of up to 10 years, but this product only has a 5-year warranty.

03. Blue Star 1.5 Ton 5 Star Inverter Split AC (ISEER- 4.66)

Blue Star 1.5 Ton 5 Star Inverter Split AC

The Blue Star 1.5 Ton 5 Star Inverter Split Air Conditioner is a good choice. There is a one-year warranty on the condenser, as well as a 10-year warranty on the compressor.

The copper condenser coil is said to provide better cooling performance and be more durable.

The filter contains active carbon, while the silver ion has a dust filter. The Blue Star 1.5 Ton 5 Star Inverter Split AC has low global warming potential and is not an ozone depleting product. Plus, it has a 4-year warranty extension.


  • Brands are trusted in India.
  • The ISEER rating for this product is 4.66, which is the best in the industry.
  • It is equipped with a good Air Purifier.
  • Annual Energy Consumption: ‎887.69 Kilowatt Hours
  •  10 years on compressor


  • This product may be expensive.
  • This product has a little bit of a higher noise level.
  • Condenser is covered by 5 years warranty.

04. Sanyo 1.5 Ton 5 Star Dual Inverter Wide Split AC (ISEER- 4.7)

Sanyo 1.5 Ton 5 Star Dual Inverter Wide Split AC

Sanyo 1.5 Ton 5 Star Dual Inverter Wide Split AC is a very efficient and attractive AC that does not just look great but performs well. This air purifier includes a PM 2.5 filter as well as a dust filter that improves air quality.

Designed to adjust the power in response to heat load, it provides efficient performance. Unlike aluminum condenser coils, copper coils are supposedly more efficient at cooling and require less maintenance. It comes with a glacier mode, which should instantly cool the system. With a 5-star rating for energy efficiency and an anti-dust filter for air purification, the Sanyo AC ensures clean air.

With its copper condenser coil, it provides superior cooling; refrigerant gas: R32. – no ozone. Furthermore, it has an impressive ISEER rating.


  • Despite its affordability, it is an energy-efficient air conditioner.
  • Japanese technology is used to formulate this product.
  • There is a satisfactory air purification system included in this product.
  • It has an ISEER rating of 4.7, which is excellent.


  • Compressors have a very short warranty of only 5 years.

05. Daikin 1.5 Ton 5 Star Inverter Split AC( ISEER – 5.8)

Daikin 1.5 Ton 5 Star Inverter Split AC

One of the best energy-efficient 1.5 ton inverter split ACs available on the Indian market is the Daikin 1.5 Ton 5 Star Inverter Split AC. 1.5 Ton offers the lowest possible level of noise. The condenser and compressor are covered by a 10-year warranty, while the product is covered by a 1-year warranty. The cooling system requires less maintenance and is more efficient. Featuring a 1.5 ton inverter split AC, Daikin’s 1.5 ton split AC is an ozone depletion-free product.


  • This product has a very high ISEER rating of 5.33, which is the highest in the industry.
  • The compressor is covered by a warranty of 10 years.
  • 1.5 Ton ACs from this brand are low-noise.
  • Annual Energy consumption: 785.67 Kilowatt Hours Per Year.


  • It should be possible to add air purification to the product.

06. LG 1.5 Ton 5 Star Wi-Fi Inverter Split AC (ISEER – 4.7)

LG 1.5 Ton 5 Star Wi-Fi Inverter Split AC

Thanks to its variable speed compressor which adjusts power as heat loads change, this LG 1.5 Ton 5 Star Wi-Fi Split AC provides excellent cooling performance. This model is among the most energy-efficient available today. It operates at a low volume, so it is the perfect choice for homes. The product is covered by a 1 year warranty and a 10-year compressor warranty with Gas Charging terms and conditions. Copper with ocean black coating helps prevent rust and corrosion, resulting in a longer-lasting product. LG ThinQ is included, the Wi-Fi voice control that works with Alexa, Google Assistant, and others.


  • In India, LG is regarded as one of the best electronics brands.
  • There is an automatic cleaning feature and good filtration in the LG 1.5 Ton 5 Star Wi-Fi Split.
  • The device is equipped with advanced voice control features.
  • Compressors come with a ten-year warranty.
  • It has an impressive ISEER rating of 4.73.


  • Some people may find the product expensive.

What to look for when buying a highest ISEER rating 1.5 ton ac?

Buying an highest ISEER rating AC in India can be a challenging process. To make the best decision, you need to consider some important factors. ISEER measures your AC’s efficiency, and the higher the rating, the more efficient it will be. The ISEER rating of an air conditioner is one factor you should consider while buying it.


In order to relax from the heat, you do not want to be subjected to loud and destructive noises. Noise is an important factor to consider when shopping for a new air conditioner. With the split AC, there are chances that you will not have a problem with noise. Window air conditioners are generally quiet, but if you were to purchase one,

The noise from the machine may disturb you, particularly during sleep or when doing other activities. No matter which type of air conditioner you choose, it is important to check the noise level. Pay attention to both outside and indoor units’ noise details in DB.

ISEER rating:

It is very important to check the ISEER rating. The higher the rating, the more energy efficient your AC will be. This ratio is referred to as seasonal energy efficiency. ISEER is a measure of how energy-efficient an air conditioner is, measured in unit of energy used.

Air Quality:

Check the quality of the air provided by your AC next. For the room to be cool and comfortable, you should have a good dehumidification system. During the monsoon season, air conditioners that have good dehumidifiers provide better cooling and greater comfort.

Cooling speed:

When purchasing an air conditioner, look for a thermostat that can be adjusted, two fans, and variable speed, since this will allow you to adjust the temperature at various times of the day. In other words, you can enjoy your AC to the fullest while using the least amount of energy.


While purchasing an AC, you should also make sure that the product is free of complaints and has an excellent reputation. Buying AC isn’t something you do every month or every season. In order to be certain that the product will last long, one should check for the product’s complaints and reviews.


Among the most important factors to consider, when buying an AC is whether the brand offers a warranty. It reduces the cost of repairs in case of a manufacturing defect.

Copper condenser coil:

Make sure that your AC has an in-built PM and anti-dust filter that can remove pollutants from the air and improve air quality. Copper coil condenser ACs can provide better cooling, and they require little maintenance.

BEE’s 2019 star rating table indicates that; in India, inverter air conditioners with an ISEER rating of 4.50 and above are considered to be five-star air conditioners.

In light of the ISEER values you mentioned, Diakin ACs use less energy than LGs, however, be sure to check pricing and warranty coverage; LG service might be more reliable.

LG uses R410a, whereas Diakin uses R32, a more eco-friendly refrigerant.

Bottom Line

This is all that you must know about highest ISEER rating 1.5 ton AC in India. All the above mentioned ACs are the highest ISEER rating ac in India 2022. They are all from top brands that are always in demand and are loved by the people of the region for multiple reasons.

It is our hope that this article can assist you in finding the right AC for your house. This guide covers all the necessary information that is required for the purchase of a split air conditioner, for your home. Our team of experts has carefully selected the best ACs in India with the highest ISEER rating, by conducting an in-depth analysis and research of each one. Additionally, we took your convenience into account, so that you can get all that you want in just a click, and we’ve given you all the links to the products with their other details, making it easy for you to get all the information you need.

Thus, you just have to choose the highest ISEER rating 1.5 ton AC in India based on your preferences. Also, this buying guide will help you get a better sense of what you should consider and make the shopping process easier. Besides, you can also review the FAQs below to find answers to any questions that might pop into your head while you are shopping for a split air conditioner.

Frequently Asked Questions (FAQ’s):

Is 5 a good ISEER rating for a 1.5 ton AC?

I believe its a good score, almost a very high score. The difference is only marginal if you compare 5 to 5.50 or something different in point. You will find alloy to be more expensive, but dont go for alloy, the money you save will go for maintenance only since alloy has frequent gas leaks, and it becomes corroded eventually, which will set you back another 9000.
Look for 100% copper condenser coil, followed by 3 or 4 or 5 stars. The number of stars varies from model to model. It is challenging to make a decision as there are several factors that impact the energy consumption, including the outside temperature, the size of the room, the type of air conditioner, and the efficiency of the unit. Energy meters need to be connected to AC inputs. Take previous readings & after running air conditioning for 8 hours. Calculate the difference to find unit consumption. Measure the consumption at various temperatures of the room. If you invest 6000 more for 5 star, compare it to how much you will save each day in daily life.

Which is better for a house, a 3-star or a 5-star AC?

Choose an inverter air conditioner with five stars. Their prices differ by between 5k and 7k.
The long run benefits would outweigh the short-term disadvantages. The power consumption of 5 star ACs is much lower than 3 star ACs.
When buying an AC for the drawing room, you should opt for a non-inverter model because inverters are less effective in the drawing room compared to the bedroom because there are more doors opening in the drawing room than in the bedroom and some houses have a drawing room attached to the kitchen. It would be suitable to use non-inverter AC there.
After a quick 1 day  study I found out that, in average a 5 star 1.5-ton AC of 2022 consumes 1400W. And 3-star 1.5-ton AC of 2022 consumes average 1700W.
Use- 9 hours/day * 30 days i.e., 270 hours a month.
Unit consumption in a 5-star AC = (1400 X 270 / 1000) units i.e., 378 units
Unit consumption in a 3-star AC = (1700 X 270 / 1000) units i.e., 459 units
So, the difference is (459–378) units i.e., 81 units. Now, if 1-unit costs you Rs. 8, then bill difference will be Rs. (81×8) i.e., Rs. 648 per month which is Rs. 7776/year.

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  1. I have 1 ton Ac of LG installed on my bedroom, now I am looking for 1.5 ton. Though LG has slightly low ISEER rating than Daikin, but my experience on their after sales is satisfactory. They quickly response on my company.

  2. Kindly, share annual maintenance cost of Daikin and 1.5 ton?

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    Drew Husband
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