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10 Best Energy Efficient Window Air Conditioner 2025 in the United States
#1
Winner
Midea 6,000 BTU Window Air Conditioner, 3-in-1 Cool/Fan/Dehumidifier Window AC Unit, Easycool Air Conditioner with Remote Control, Cools up to 250 Sq. Ft., Fits bedroom, study, office (2024 Upgrade)
The Midea MAW06R1CWT EasyCool 6,000 BTU Window Air Conditioner is a solid choice for cooling spaces up to 250 sq ft. It offers three modes—cooling, fan, and dehumidifying—making it a versatile option for different needs. With a BTU rating of 6,000, it can cool small to medium-sized rooms efficiently. One of its major strengths is its low noise level at 52 dB, which is quieter than many other models, making it a good fit for bedrooms or offices where noise can be a disturbance.
Rating
9.9
Chosen by1,167
BTU (British Thermal Units)
Noise Level
Filter Type
Most important from
16849 reviews
#2
Frigidaire 12,000 BTU Window Air Conditioner with Remote Control, Cools Up to 550 Sq. Ft., Quiet Operation, Eco Mode, 3 Fan Speeds, Auto Restart, White
The Frigidaire 12,000 BTU window air conditioner is a solid choice for cooling rooms up to about 550 square feet. Its cooling capacity suits medium to large rooms, making it practical for many home environments. With a SEER rating of 10.9, it provides decent energy efficiency, although it does not have an Energy Star certification, which means it may not be the most energy-saving option available. The noise level is moderately quiet at 57 dB, quiet enough not to be disruptive during use and suitable for bedrooms or living areas.
Rating
9.8
BTU (British Thermal Units)
EER (Energy Efficiency Ratio)
Noise Level
Most important from
17573 reviews
#3
GE Window Air Conditioner Unit, 6,000 BTU for Small Rooms up to 250 sq ft. with Adjustable Fan and Cooling Settings, Perfect for Small Bedroom or Living Room, Easy Install Kit Included, White
The GE Window Air Conditioner Unit, offering 6,000 BTU, is specifically designed for small rooms up to 250 sq ft. It stands out with its energy-efficient operation, providing three cooling modes and fan speeds, which can help maintain optimal room temperature. This makes it an excellent choice for small bedrooms, studio apartments, or home offices where space is limited and comfort is essential.
Rating
9.7
BTU (British Thermal Units)
Noise Level
Most important from
8170 reviews
Top 10 Best Energy Efficient Window Air Conditioner 2025 in the United States
#1
Winner
Midea 6,000 BTU Window Air Conditioner, 3-in-1 Cool/Fan/Dehumidifier Window AC Unit, Easycool Air Conditioner with Remote Control, Cools up to 250 Sq. Ft., Fits bedroom, study, office (2024 Upgrade)
Midea 6,000 BTU Window Air Conditioner, 3-in-1 Cool/Fan/Dehumidifier Window AC Unit, Easycool Air Conditioner with Remote Control, Cools up to 250 Sq. Ft., Fits bedroom, study, office (2024 Upgrade)
BTU (British Thermal Units): 6000
EER (Energy Efficiency Ratio): 12.1
Noise Level: 52 dB
Programmable Timer: Yes
Remote Control: Yes
Filter Type: Dust Filter
Chosen by 1167 this week
Frigidaire 12,000 BTU Window Air Conditioner with Remote Control, Cools Up to 550 Sq. Ft., Quiet Operation, Eco Mode, 3 Fan Speeds, Auto Restart, White
Frigidaire 12,000 BTU Window Air Conditioner with Remote Control, Cools Up to 550 Sq. Ft., Quiet Operation, Eco Mode, 3 Fan Speeds, Auto Restart, White
BTU (British Thermal Units): 12000 British Thermal Units
Noise Level: 57 dB
Programmable Timer: 24-hour programmable timer
Remote Control: Included
Filter Type: Washable dust filter
GE Window Air Conditioner Unit, 6,000 BTU for Small Rooms up to 250 sq ft. with Adjustable Fan and Cooling Settings, Perfect for Small Bedroom or Living Room, Easy Install Kit Included, White
GE Window Air Conditioner Unit, 6,000 BTU for Small Rooms up to 250 sq ft. with Adjustable Fan and Cooling Settings, Perfect for Small Bedroom or Living Room, Easy Install Kit Included, White
BTU (British Thermal Units): 6000
EER (Energy Efficiency Ratio): 11
Noise Level: 56 dB
Programmable Timer: Yes
Remote Control: Yes
Filter Type: Washable
LG 10000 BTU Smart Wi-Fi Enabled, Ultra-Quite, Quick and Easy Installation Window Air Conditioner with Remote, ThinQ Technology, Washable Filter, Eco-Friendly R32 Refrigerant (White)
LG 10000 BTU Smart Wi-Fi Enabled, Ultra-Quite, Quick and Easy Installation Window Air Conditioner with Remote, ThinQ Technology, Washable Filter, Eco-Friendly R32 Refrigerant (White)
BTU (British Thermal Units): 10000
Noise Level: 52-53 dB
Programmable Timer: Yes
Remote Control: Yes
Filter Type: Dust Filter
Amazon Basics 5000-BTU Small Window Air Conditioner, Up to 150 Sqf, Window AC Units with Cool and Fan Functions, Washable Filter, Adjustable Window Kit, Intuitive Mechanical Controls, White
Amazon Basics 5000-BTU Small Window Air Conditioner, Up to 150 Sqf, Window AC Units with Cool and Fan Functions, Washable Filter, Adjustable Window Kit, Intuitive Mechanical Controls, White
BTU (British Thermal Units): 5000 BTU
Noise Level: 56 dB
Filter Type: Pre-Filter
Related Products
Amazon Basics 6000-BTU Window Air Conditioner, Up to 250 Sqf, Window AC Units with Cool and Fan Functions, Washable Filter, Adjustable Window Kit, Digital Temperature Display, Remote Control, White
Amazon Basics 6000-BTU Window Air Conditioner, Up to 250 Sqf, Window AC Units with Cool and Fan Functions, Washable Filter, Adjustable Window Kit, Digital Temperature Display, Remote Control, White
BTU (British Thermal Units): 6000
EER (Energy Efficiency Ratio): 12.1
Programmable Timer: 24-hour
Remote Control: Yes
Filter Type: Removable, washable
Frigidaire 6,000 BTU Window Air Conditioner with Remote Control, Cools Up to 250 Sq. Ft., Quiet Operation, Eco Mode, 3 Fan Speeds, Auto Restart, White
Frigidaire 6,000 BTU Window Air Conditioner with Remote Control, Cools Up to 250 Sq. Ft., Quiet Operation, Eco Mode, 3 Fan Speeds, Auto Restart, White
BTU (British Thermal Units): 6000
Noise Level: 51 dB
Programmable Timer: 24-hour
Remote Control: Yes
Filter Type: Washable dust filter
Profile PHNT10CC Clearview Air Conditioner 10,300, Inverter Technology, Ultra Quiet, Medium Rooms up to 450 Sq. FT, Full Window View with Easy Installation, Energy-Efficient Cooling, 10300 BTU, White
Profile PHNT10CC Clearview Air Conditioner 10,300, Inverter Technology, Ultra Quiet, Medium Rooms up to 450 Sq. FT, Full Window View with Easy Installation, Energy-Efficient Cooling, 10300 BTU, White
BTU (British Thermal Units): 10300
EER (Energy Efficiency Ratio): 11.2
Noise Level: 40 dB
Programmable Timer: Yes
Remote Control: Yes
LG 6,000 BTU Dual Inverter Smart Window Air Conditioner, 115V, Cools 250 Sq. Ft., Ultra Quiet Operation, Up to 35% More Energy Savings, ENERGY STAR®, works with LG ThinQ, Amazon Alexa and Hey Google
LG 6,000 BTU Dual Inverter Smart Window Air Conditioner, 115V, Cools 250 Sq. Ft., Ultra Quiet Operation, Up to 35% More Energy Savings, ENERGY STAR®, works with LG ThinQ, Amazon Alexa and Hey Google
BTU (British Thermal Units): 6000
EER (Energy Efficiency Ratio): 15.5
Noise Level: 44 dB
Programmable Timer: Yes
Remote Control: Yes
#10
GE AWCS08WWA Window Air Conditioner, Wi-Fi Enabled, Energy-Efficient Cooling for Medium Rooms up to 350 sq ft, Easy Install Kit, Control Using Remote or Smartphone App, New 8,000 BTU, White
GE AWCS08WWA Window Air Conditioner, Wi-Fi Enabled, Energy-Efficient Cooling for Medium Rooms up to 350 sq ft, Easy Install Kit, Control Using Remote or Smartphone App, New 8,000 BTU, White
BTU (British Thermal Units): 8000 British Thermal Units
Noise Level: 58 dB
Remote Control: Included
Filter Type: Washable Filter
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Buying Guide for the Best Energy Efficient Window Air Conditioner
Choosing the right energy-efficient window air conditioner can make a significant difference in your comfort and energy bills. The key is to find a unit that fits your space, cooling needs, and energy efficiency preferences. By understanding the key specifications, you can make an informed decision that ensures you stay cool without wasting energy or money.BTU (British Thermal Units)BTU measures the cooling capacity of an air conditioner. It's important because it determines how effectively the unit can cool a given space. Units with lower BTUs (5,000-8,000) are suitable for small rooms (100-350 sq. ft.), while medium BTUs (8,000-12,000) are ideal for medium-sized rooms (350-550 sq. ft.). Higher BTUs (12,000-18,000) are best for large rooms (550-1,000 sq. ft.). To pick the right one, match the BTU rating to the size of the room you want to cool.
EER (Energy Efficiency Ratio)EER measures the energy efficiency of an air conditioner. It's calculated by dividing the BTU rating by the unit's wattage. A higher EER indicates a more energy-efficient unit, which is important for reducing energy consumption and lowering utility bills. EER ratings typically range from 8 to 12. For the best energy savings, look for a unit with an EER of 10 or higher. Consider your usage patterns and energy-saving goals when choosing the EER rating.
Noise LevelNoise level is measured in decibels (dB) and indicates how loud the air conditioner will be when operating. This is important for maintaining a comfortable and quiet environment, especially in bedrooms or living areas. Noise levels for window air conditioners typically range from 50 to 70 dB. For a quieter experience, look for units with noise levels below 60 dB. Consider where you plan to install the unit and how sensitive you are to noise when making your choice.
Programmable TimerA programmable timer allows you to set the air conditioner to turn on or off at specific times. This feature is important for optimizing energy use and ensuring the room is cool when you need it. Timers can range from simple 24-hour settings to more advanced weekly schedules. If you have a regular routine, a programmable timer can help you save energy by only running the unit when necessary.
Remote ControlA remote control allows you to adjust the settings of the air conditioner from a distance. This is important for convenience, especially if the unit is installed in a hard-to-reach place. Remote controls typically offer basic functions like temperature adjustment, fan speed, and mode selection. If ease of use is a priority for you, look for a unit that includes a remote control.
Filter TypeThe filter type affects the air quality and maintenance of the air conditioner. Common filter types include washable, reusable, and replaceable filters. Washable and reusable filters are cost-effective and environmentally friendly, while replaceable filters may offer better filtration but require regular replacement. Consider your preference for maintenance and air quality when choosing the filter type.