Air conditioners, when used excessively, can be costly to run and a drain on the electricity grid. But the technology has improved significantly, which means that a split system air conditioner will use much less power than they used to.

In fact, it might be worth replacing with a newer, more efficient model if it’s:

• Excessively noisy
• Costly to repair
• Costly to run
• Producing uneven cooling or heating
• Over seven years old

Learn more about how to choose the right air conditioner for your home in our Complete Guide to Choosing the Right Home Air Conditioner