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Buying Guide Air Conditioners

How to Choose the Right AC: Tonnage, Star Rating & Inverter

Quick answer

Match tonnage to room size and floor, choose an inverter compressor, pick 5-star if you run it many hours, prefer copper coils and check installation and service costs.

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Tonnage by room size

About 1 ton for rooms up to 110 sq ft, 1.5 ton up to 180 sq ft and 2 ton for larger rooms. Add capacity for top floors and west-facing rooms.

Inverter vs fixed speed

Inverter ACs adjust their speed and use less power over a season.

Star rating

Higher ratings cost more upfront but save on electricity if you run the AC for long hours.

Installation and service

Ask about installation charges, copper pipe length and the local service network before buying.

Our recommendations

Ready to choose? See our Best ACs in India: 1.5 Ton Inverter Picks.

Frequently asked questions

Which AC brand is best in India?

Daikin and LG are our top picks for reliability and efficiency. Voltas, Blue Star and Lloyd offer good value.

3 star or 5 star?

If you run the AC more than 6–8 hours a day for several months, a 5-star model usually pays back the difference in electricity savings.

Buyrskip Editorial Team

Part of the Buyrskip research team. We compare specifications, documentation and real-world trade-offs so you can decide faster.