Which AC to buy: 3-star or 5-star, which is beneficial to buy, know here

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.