New Delhi, Feb. 24 -- You clean the filters and get it serviced on time, and yet, your window AC still struggles to keep the room cool. The loud humming keeps you up at night, and worst of all, your electricity bill seems to climb higher every month even if you use it less. That's because, over time, even the most well-maintained window ACs start losing efficiency. Years of continuous use lead to weaker cooling, more noise, and power consumption that burns a hole in your pocket.

But does that mean a split AC is the ultimate solution? Window ACs work well in compact spaces and budget-conscious households. But if your current unit isn't keeping up with the summer heat, a split AC might offer better cooling, energy savings, and a quieter ex...