EER or Energy Efficiency Ratio is a rating for a room air conditioner, which describes how many energy in BTU produced per hour from each watt of energy input it consumes.
The higher the EER rating, the more efficient the window air conditioner. Energy.gov recommends to select only window air conditioner with highest EER. At least, you should choose window air conditioner with EER rating of 10. More is better.
You have to look at Energy Star label that each window air conditioner has. Find it on the unit. Window air conditioner with highest EER can be easily recognized from its Energy Star label.
Window Air Conditioner with Higest EER
The following table shows you three units of window air conditioner with highest EER in its capacity level.
To find out another window air conditioner with highest EER, just click more info on the table.
Image Title LG Energy Star 8,000 BTU Window-Mounted Air Conditioner with Remote Control (115 volts) - LW8012ER Frigidaire FRA126CT1 12-000 Btu Window Air Conditioner W / Temp Remote Frigidaire FRA156MT1 15,100 BTU Window-Mounted Median Room Air Conditioner Color White White White Feature Energy Star 8,000 BTU window-mounted air conditioner with full-function remote control (115 volts)
Cooling area up to 350 sq. ft.
Dehumidification up to 2.2 pints per hour
Energy saver function conserves energy and saves you money
24-hour programmable on/off timer cools on your schedule
12-000 BTU cooling capacity with variable speed fan
Cools room sizes up to 640 sq. ft.
8-way air direction control
Clean air ionizer; Anti-bacterial mesh filter type- tilt-out filter access
Electronic controls with temperature sensing remote
15,100 BTU cooling capacity with 3 fan speeds
Cools room sizes up to 900 sq. ft.
4-way air direction control
Electronic controls with full function remote with thermostat
ListPrice $249.99 $439.00 $499.99 Manufacturer LG Frigidaire Frigidaire Warranty 1 year parts and labor window-mounted air conditioner, remote control, mounting kit, manual /warranty Price $219.00 Too Low to Display Too Low to Display Height 12.38 inch 14.4 inch 17.75 inch Weight 49.9 pound 0 pound 0 pound Width 19.56 inch 19 inch 25.4 inch PackageWeight 63 pound 75.4 pound 112 pound Rating Reviews Read Reviews Read Reviews Read Reviews Link More Info More Info More Info