Our bedroom air conditioner broke down. It is a Panasonic that we bought 3 years ago. Too bad, so young to experience a broken compressor. Instead of having it repaired, we decided to just buy a new one. And it’s not the ordinary air conditioner that we bought, it is an inverter which is pretty expensive at double the cost of the ordinary air conditioner. Now, this question. Is an inverter air conditioner really economical in electric consumption? Based on the literature of the Carrier inverter air conditioner that we bought, the savings is 40% compared to the ordinary air conditioner. I hope it’s true.