Air Conditioners, Air Coolers & Fans

How to Reduce Energy Cost of Air Conditioner

Star Rating

Star rating is a system initiated by BEE (Bureau of Energy Efficiency) to determine the energy efficiency of home appliances including air-conditioners. Depending on their energy efficiency they are rated on a scale of 1 - 5 stars. Higher the number of stars, better is their energy efficiency.

The energy efficiency of an AC depends on :

The cooling capacity or the energy efficiency should be kept in mind when purchasing an AC.

The table below provides the band for star rating( Source:

Star Rating Minimum EER Maximum EER
1 star 2.3 2.49
2 star 2.5 2.69
3 star 2.7 2.89
4 star 2.9 3.09
5 star 3.1 ***

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 AC maintenance Guide
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 Split vs Window Air Conditioner