What is the Difference Between a 3-Star AC and 5-Star AC?

byPriyanka JuyalLast Updated: May 3, 2024
What is the Difference Between a 3 Star AC and 5 Stars AC?

Which is better: a 3-star or a 5-star air conditioner?

If you’ve ever been in this situation, this blog is just for you!

Air conditioners with 5 star ratings are often preferred over ACs with low ratings. The reason can be power consumption, maintenance cost and more. Besides, 5 star or higher rating ACs are chosen because of their efficiency to cool the inside of the room or hall, way faster than other ACs with low ratings.

So, if you’re trying to decide whether to buy a 3-star or 5-star air conditioner, keep reading the blog to get answers to all of your AC-related questions.

But first, let’s define AC star rating. After that, we’ll go over which star-rating AC is best to buy, factors that affect AC power consumption, ways to reduce AC power consumption, and more.

An Overview of Star Rating ACs

A star-rated appliance or air conditioner demonstrates its energy efficiency. The greater the number of stars, the greater the energy efficiency of the appliance. In general, the star rating scale ranges from 1 to 5. People are more likely to choose an air conditioner with more stars because it is more energy-efficient.

Difference Between 5 Star AC and 3 Star AC

The following points elaborate the differences between a 5 star AC and a 3 star AC-

  • A 5-star AC has better cooling and power efficiency than a 3-star AC
  • 5-star air conditioners use less energy than 3-star air conditioners, allowing the user to save money on electricity bills
  • ACs with 5 stars are more durable than those with 3 stars
  • When compared to 3-star ACs, 5-star ACs typically have a larger condenser, which results in better heat exchange
  • 5-star air conditioners generate less heat than 3-star air conditioners
  • ACs with 5-star ratings can be used all year
  • ACs with higher ratings are considered more powerful because they cool the room more quickly

Power Consumption Between 3 Stars Acs and 5 Stars Acs

Based on the weight of the ACs, the following are the differences that made 3-star ACs and 5-star ACs different from each other-

Star rating0.75 ton1.0 ton1.5 ton2.0 ton
3 star rating542 watts747 watts1104 watts1448 watts
5 star rating450 watts554 watts840 watts1113 watts

What Are the Factors That Affect AC Power Consumption?

Numerous factors affect AC power consumption, a few among them are written below- 

  • The number of people in a room influences AC power consumption
  • The total number of electrical appliances in the room generates more heat, increasing the AC power consumption to cool the room
  • A 5-star rated air conditioner saves energy, whereas a 1 or 2-star rated air conditioner consumes more power
  • The temperature outside and inside the room has an impact on the amount of electricity consumed by the air conditioner
  • The type of AC, such as window AC, inverter AC, split AC, or central AC, influences the power consumption
  • When it comes to AC power consumption, the size of the room is very important. The larger or larger the room, the greater the AC power consumption. Similarly, smaller rooms do not consume more AC electricity

How to Calculate AC Power Consumption?

  • AC KW rating (it is available on the AC nameplate)
  • The total daily running hours of the air conditioner
  • The total cost of 1 unit of the electricity board (consider Rs. 6 as the cost of 1 unit of electricity)

The formula to calculate AC power consumption is- 

Units per month = kW of AC * Daily running hours * 30 or 31 (month)

Let us now calculate the AC power consumption using an example.

For example, there is a branded 1.5 kW AC that runs for 8 hours per day.

As a result, the total power consumption of that AC will be 1.5 * 8 * 30 =360 units per month.

Next, to calculate the electricity bill consumed by AC in a month, let us assume Rs. 6 as the per-unit cost of electricity. As a result, the monthly electric bill will be,

The electricity bill for AC in a month= Units per month * Cost of one unit

= 360 units * Rs. 6

= Rs. 2160 

How to Reduce AC Power Consumption?

If you are worried about high AC bills every month, following are some of the tips or tricks to reduce AC power consumption-

  • Switch off the AC when it is not in use
  • Keep the AC temperature ideal 
  • Make sure to select post-maintenance services
  • Replace your air conditioner as soon as you notice it is consuming more energy
  • If your air conditioner is old, you can sell it, buy it, or exchange it
  • If you want to cool the room faster, turn on the ceiling fan
  • Opt for IoT device as the device helps in switching off/on the appliances when in use or not in use
  • Close door and windows to cool the room fast
  • Clean the AC filters timely
  • Make sure your air conditioner does not get direct sunlight. Place the air conditioner compressor in the shade

Things to Take Care of Before Buying an AC

Users should consider a few number of things before buying an AC

  • AC ratings
  • Type of AC
  • Maintenance cost
  • AC with their weight
  • ACs cooling capacity
  • Power consumption of AC

*Make sure to compare the number of brands, the services they offer, etc before buying an AC

How to Make Electricity Bill Payment Online?

Given below are the steps to pay electricity bills online through Paytm-

  1. Pay electricity bill on the Paytm website
  • Login to the Paytm website
  • Navigate to ‘Recharge & Pay Bills’
  • Click on ‘Pay Electricity Bill’
  • Select the electricity bill payment option
  • Next, enter the state, board and consumer number
  • Enter the amount
  • Proceed with your preferred mode of payment to complete electricity bill
  1. Pay electricity bill on the Paytm application
  • Login to the Paytm application
  • Locate ‘Bill Payments’ and click on ‘View More’
  • Now, scroll the screen, find ‘Electricity’ and choose the desired ‘Electricity Bill Payment
  • Next, enter the state and choose the board
  • Write down the consumer number and proceed to enter the electricity bill amount
  • Choose your preferred a mode of payment to complete electricity bill

Read- How to find consumer number on electricity bill 

Why is 5 star rating AC the best?
When compared to ACs with lower star ratings, 5-star ACs use less energy and power.
Can I pay my electricity bill online?
Install the Paytm application to pay electricity bills online by following a few easy steps.
Can I also pay my electricity bill through the Paytm website?
Pay your electricity bill through the Paytm website by signing up to the website.
Is it true that a number of people impact the cooling capacity of an AC?
The human body emits heat, and a crowded room emits even more heat, reducing the cooling capacity of the air conditioner. As a result, AC consumes more energy and takes longer to cool the room.

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