Energy Efficiency
Window ACs Now Hit 15 EER at 9,000 BTU in 2026
In 2026, 9,000 BTU window air conditioners achieve a 15 EER rating. They deliver up to 25 percent energy savings, quieter performance, and smart controls for rooms of 350 to 400 square feet at prices between $300 and $600.
Stanley Johnson
4 min read