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

8. Koldfront WAC6002WCO -- Compact with Smart Airflow

Smaller rooms deserve smart cooling too, and this 6,000 BTU model from Koldfront delivers. It's energy efficient, budget-friendly, and comes with electronic controls that allow for more precise cooling. It's also surprisingly good at distributing air evenly across the room --- no cold corners or hot spots here.