Which AC to buy: 3-star or 5-star, which is beneficial to buy, know here
If you are preparing to buy a new AC, then it is very important for you to know which star rating AC to buy will be economical and beneficial. We are telling you the math of 3-star and 5-star ratings of ACs.
What is Star Rating: The star rating system of an AC refers to the energy efficiency. Also tells the cooling capacity. That is, AC of more star rating consumes less electricity.
Key difference between 3-star and 5-star: The cooling capacity of an AC with 5-star rating is higher as compared to 3-star rating. 5 Star AC consumes less power as compared to 3 Star AC.
Power Consumption Calculation: The 5 Star 1.5 Ton AC consumes an average of 1450W per hour. The 3 Star 1.5 Ton AC consumes an average of 1600W per hour.
If you run this for 8 hours a day, then you will run AC for 240 hours in 30 days. i.e. power consumption per month of 5 star AC: (1450 * 240 / 1000) units i.e. total 348 units. Whereas, power consumption per month of 3 star AC: (1600 * 240 / 1000) units i.e. total 384 units.
In this way, the difference in power consumption between the two per month is 36 units. If you pay electricity bill of Rs 8 per units, then you will have to pay at least Rs 288 more per month for installing 3 star AC as compared to 5 star.
Who is beneficial to buy: If you do not use the AC at home for 16 to 18 hours and run only for 6 to 8 hours, then buy a 3-star AC.
You will not have much impact on the electricity bill. Money will also be saved while buying. On the other hand, if the running of AC is more then buying 5-star will be beneficial.
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