New Delhi, April 18 -- Rising temperatures and electricity bills make air conditioners one of the biggest household expenses in Indian homes. While using ACs in the scorching summer heat is non-negotiable, you can save some of the electricity bill by choosing the right AC model. For instance, if you are planning to buy a 1.5 ton AC, picking a 5 Star model can make a significant difference in your electricity bills. The idea is simple. The higher the energy rating, the greater is the efficiency and lower is the electricity bill.

That said, not all 5 Star ACs are equally energy efficient. Factors like inverter compressors, copper condenser coils, and energy-savings modes play an important role in keeping electricity bills under check. Feat...