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Best Buy customers often prefer the following products when searching for sizing air conditioner.

When you're sizing air conditioner systems, you're looking at the amount of energy a unit uses to cool down a certain size of space. Larger rooms typically require more energy consumption, and vice versa. If you're looking for energy efficient units, consider these air conditioners. Browse the top-ranked list of air conditioners below along with associated reviews and opinions.

Main Results
  1. GE - 250 Sq. Ft. 6000 BTU Window Air Conditioner - White - Front_Zoom
    Top comment

    "Nice easy to set up, smaller than a 5000 btu and not as loud as some 6000 btu air conditioners....Great little air-conditioned. Effective and easy to install."

    See all customer reviews

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort while the features make products versatile and easy to use. This 6,000 BTU window air conditioner cools small rooms up to 250 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Electronic controls with included remote make it easy to adjust and manage your settings from anywhere in your room. This AC installs easily in a double hung window with included EZ Mount window kit and fixed chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Window Air Conditioners
    Top comment

    "Nice easy to set up, smaller than a 5000 btu and not as loud as some 6000 btu air conditioners....Great little air-conditioned. Effective and easy to install."

    See all customer reviews

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort while the features make products versatile and easy to use. This 6,000 BTU window air conditioner cools small rooms up to 250 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Electronic controls with included remote make it easy to adjust and manage your settings from anywhere in your room. This AC installs easily in a double hung window with included EZ Mount window kit and fixed chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Window Air Conditioners
    See all Window Air Conditioners
  2. GE - 700 Sq. Ft. 14000 BTU Smart Window Air Conditioner - White - Front_Zoom
    Top comment

    "This air conditioner provides excellent cooling for my house. ...So far has worked excellent. I love this air conditioner. Well, the money I paid for."

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    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 14,000 BTU smart window air conditioner cools large rooms up to 700 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung window with included window kit and fixed chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Window Air Conditioners
    Top comment

    "This air conditioner provides excellent cooling for my house. ...So far has worked excellent. I love this air conditioner. Well, the money I paid for."

    See all customer reviews

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 14,000 BTU smart window air conditioner cools large rooms up to 700 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung window with included window kit and fixed chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Window Air Conditioners
    See all Window Air Conditioners
  3. AireMax - 500 Sq. Ft 8,000 BTU Portable Air Conditioner with 11,000 BTU Heater - White - Front_Zoom
    Top comment

    "Like the small size and different modes, which make this portable air conditioner an all in one good choice. ...Portable air conditioner was heavy to move around Need plenty of space"

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    Product Description

    The AireMax 8,000 BTU Portable Air Conditioner, 14,000 BTU ASHRAE standard, is the perfect comfort option for any home. Ideal for cooling any room up to a 500 square foot max. Doubling as a dehumidifier this unit will remove up to 78 pints of moisture from your home per day. Add a supplemental heat source to your home with the 11,000 BTU heat-mode option. Designed with a self-evaporative system, the unit condensates water recycled inside for efficient cooling. Equipped with cooling options tailored to your preferences, the unit has 3 air flow speeds, plus auto 1-way directional air louvers for effective air movement while in use. At night take advantage of the 24-Hour Programmable Timer or Sleep Mode function for minimal maintenance and consistent cooling at all hours. If you lose power this unit is equipped with an Auto Restart function that will automatically turn back on to the last temperature you set it at.
    See all Portable Air Conditioners
    Top comment

    "Like the small size and different modes, which make this portable air conditioner an all in one good choice. ...Portable air conditioner was heavy to move around Need plenty of space"

    See all customer reviews

    Product Description

    The AireMax 8,000 BTU Portable Air Conditioner, 14,000 BTU ASHRAE standard, is the perfect comfort option for any home. Ideal for cooling any room up to a 500 square foot max. Doubling as a dehumidifier this unit will remove up to 78 pints of moisture from your home per day. Add a supplemental heat source to your home with the 11,000 BTU heat-mode option. Designed with a self-evaporative system, the unit condensates water recycled inside for efficient cooling. Equipped with cooling options tailored to your preferences, the unit has 3 air flow speeds, plus auto 1-way directional air louvers for effective air movement while in use. At night take advantage of the 24-Hour Programmable Timer or Sleep Mode function for minimal maintenance and consistent cooling at all hours. If you lose power this unit is equipped with an Auto Restart function that will automatically turn back on to the last temperature you set it at.
    See all Portable Air Conditioners
    See all Portable Air Conditioners
  4. Whynter - 500 Sq. Ft. Portable Air Conditioner and Heater - Platinum/Black - Front_Zoom
    Top comment

    "Whynter - 500 Sq. Ft. Portable Air Conditioner and...Whynter - 500 Sq. Ft. Portable Air Conditioner and Heater - Platinum/Black Keep your home comfortable with this Whynter ARC-14SH 14,000 BTU portable air conditioner and 13,000 BTU heater that features dual-hose operation for fast, efficient cooling. ...Portable air conditioner unit...I am happy with this portable air conditioner. The area where its needed remains cool all day and at night i actually bundle up to keep warm."

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    Product Description

    Keep your home comfortable with this Whynter ARC-14SH 14,000 BTU portable air conditioner and 13,000 BTU heater that features dual-hose operation for fast, efficient cooling. The 101-pts./day dehumidification capacity helps you breathe easily.
    See all Portable Air Conditioners
    Top comment

    "Whynter - 500 Sq. Ft. Portable Air Conditioner and...Whynter - 500 Sq. Ft. Portable Air Conditioner and Heater - Platinum/Black Keep your home comfortable with this Whynter ARC-14SH 14,000 BTU portable air conditioner and 13,000 BTU heater that features dual-hose operation for fast, efficient cooling. ...Portable air conditioner unit...I am happy with this portable air conditioner. The area where its needed remains cool all day and at night i actually bundle up to keep warm."

    See all customer reviews

    Product Description

    Keep your home comfortable with this Whynter ARC-14SH 14,000 BTU portable air conditioner and 13,000 BTU heater that features dual-hose operation for fast, efficient cooling. The 101-pts./day dehumidification capacity helps you breathe easily.
    See all Portable Air Conditioners
    See all Portable Air Conditioners
  5. GE - 350 Sq. Ft. 8,500 BTU Smart Portable Air Conditioner - White - Front_Zoom

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our portable air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 8,000 BTU class (8100 BTU DOE) smart portable air conditioner cools medium rooms up to 350 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Upgrade this portable AC with the dual hose conversion kit (RAP02W sold separately) for a better, faster cooling experience. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung or sliding window with included window kit. Additional features like power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Portable Air Conditioners

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our portable air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 8,000 BTU class (8100 BTU DOE) smart portable air conditioner cools medium rooms up to 350 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Upgrade this portable AC with the dual hose conversion kit (RAP02W sold separately) for a better, faster cooling experience. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung or sliding window with included window kit. Additional features like power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Portable Air Conditioners
    See all Portable Air Conditioners
  6. GE - 150 Sq. Ft 5000 BTU Window Air Conditioner - White - Front_Zoom
    Top comment

    "Works really good and will purchase another air-conditioner."

    See all customer reviews

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort with minimal noise during operation. This 5,000 BTU window air conditioner cools small rooms up to 150 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Electronic controls with included remote make it easy to adjust and manage your settings from anywhere in your room. This AC installs easily in a double hung window with included window kit and fixed chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Window Air Conditioners
    Top comment

    "Works really good and will purchase another air-conditioner."

    See all customer reviews

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort with minimal noise during operation. This 5,000 BTU window air conditioner cools small rooms up to 150 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Electronic controls with included remote make it easy to adjust and manage your settings from anywhere in your room. This AC installs easily in a double hung window with included window kit and fixed chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Window Air Conditioners
    See all Window Air Conditioners
  7. GE - 300 Sq. Ft. 7,500 BTU Smart Portable Air Conditioner - White - Front_Zoom

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our portable air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 7,000 BTU class (7550 BTU DOE) smart portable air conditioner cools small rooms up to 300 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Upgrade this portable AC with the dual hose conversion kit (RAP02W sold separately) for a better, faster cooling experience. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung or sliding window with included window kit. Additional features like power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Portable Air Conditioners

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our portable air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 7,000 BTU class (7550 BTU DOE) smart portable air conditioner cools small rooms up to 300 square feet. Energy efficient cooling with 3 cooling and 3 fan speeds provides flexible and optimal home comfort. Upgrade this portable AC with the dual hose conversion kit (RAP02W sold separately) for a better, faster cooling experience. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung or sliding window with included window kit. Additional features like power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Portable Air Conditioners
    See all Portable Air Conditioners
  8. GE - 450 Sq. Ft. 10,300 BTU Smart Portable Air Conditioner and 10,300 BTU Heater - White - Front_Zoom

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our portable air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 10,000 BTU class (10300 BTU DOE) smart portable air conditioner cools and heats medium rooms up to 450 square feet. Energy efficient cooling with 3 cooling, 3 heating, 3 fan speeds provide flexible and optimal home comfort. Upgrade this portable AC with the dual hose conversion kit (RAP02W sold separately) for a better, faster cooling experience. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung or sliding window with included window kit. Additional features like power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Portable Air Conditioners

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our portable air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 10,000 BTU class (10300 BTU DOE) smart portable air conditioner cools and heats medium rooms up to 450 square feet. Energy efficient cooling with 3 cooling, 3 heating, 3 fan speeds provide flexible and optimal home comfort. Upgrade this portable AC with the dual hose conversion kit (RAP02W sold separately) for a better, faster cooling experience. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung or sliding window with included window kit. Additional features like power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Portable Air Conditioners
    See all Portable Air Conditioners
  9. GE - 550 Sq. Ft. 12,000 BTU Smart Window Air Conditioner and 10,800 BTU Heater - White - Front_Zoom

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 8,000 BTU smart window air conditioner cools and heats medium rooms up to 350 square feet. Energy efficient cooling with 3 cooling, 3 heating, and 3 fan speeds provides year-round optimal home comfort. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung window with included window kit and slide-out chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Window Air Conditioners

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our window air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 8,000 BTU smart window air conditioner cools and heats medium rooms up to 350 square feet. Energy efficient cooling with 3 cooling, 3 heating, and 3 fan speeds provides year-round optimal home comfort. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung window with included window kit and slide-out chassis. Additional features like eco mode, power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Window Air Conditioners
    See all Window Air Conditioners
  10. GE - 450 Sq. Ft. 10,800 BTU Smart Portable Air Conditioner - White - Front_Zoom
    Top comment

    "I highly recommend this air conditioner...This GE unit is well made and very efficient It looks great in the corner of the bedroom I plan on buying another one!!"

    See all customer reviews

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our portable air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 10,000 BTU class (10400 BTU DOE) smart portable air conditioner cools medium rooms up to 450 square feet. Energy efficient cooling with 3 cooling, 3 heating, 3 fan speeds provide flexible and optimal home comfort. Upgrade this portable AC with the dual hose conversion kit (RAP02W sold separately) for a better, faster cooling experience. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung or sliding window with included window kit. Additional features like power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Portable Air Conditioners
    Top comment

    "I highly recommend this air conditioner...This GE unit is well made and very efficient It looks great in the corner of the bedroom I plan on buying another one!!"

    See all customer reviews

    Product Description

    GE Appliances is dedicated to providing the right solutions for rooms of any size. Our portable air conditioners are designed to offer exceptional comfort while remaining quiet, and our latest connected technology makes these products versatile and easy to use. This 10,000 BTU class (10400 BTU DOE) smart portable air conditioner cools medium rooms up to 450 square feet. Energy efficient cooling with 3 cooling, 3 heating, 3 fan speeds provide flexible and optimal home comfort. Upgrade this portable AC with the dual hose conversion kit (RAP02W sold separately) for a better, faster cooling experience. Integration with the SmartHQ app allows you to monitor, schedule, and control your connected air conditioner from anywhere, or use the electronic controls with included remote to easily adjust and manage your settings. This AC installs easily in a double hung or sliding window with included window kit. Additional features like power interruption restart, 24-hour on/off timer, and removable filter offer ease of use and maintenance.
    See all Portable Air Conditioners
    See all Portable Air Conditioners
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