LG’s Dual Inverter Wi-Fi-connected window air conditioner is quiet and super efficient, but LG needs to rethink its strategy of using the same app for every one of its smart appliances.

For instance, while LG does not sell any other smart Wi-Fi controlled window air conditioners in those sizes; the closest is a 12,000-BTU model that lacks the dual inverter technology, which sells ...

There are three different LG window air conditioners with dual inverter compressors. The 14,000 BTU LG model LW1517IVSM is up to 25 percent more efficient than non-invertor models and lists for $470.

That's why I've been testing a bunch of the best smart ... BTU model, good for 1,4400 square feet, so you can pick one that best suits your room size. All models use what LG calls a dual-inverter ...