10 Best Energy Efficient Air Conditioners to Keep You Cool Without Raising Your Bill

2. LG LW6017R -- Quiet and Consistent Performer

This 6,000 BTU window unit from LG is a favorite among those who want peace and power in one package. It's not the flashiest model, but it cools efficiently and doesn't make much fuss while doing it. The mechanical controls are simple, and it does a great job for rooms up to 260 square feet. Plus, it's known for long-term durability --- always a plus!