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most efficient window air conditioners

Best Buy customers often prefer the following products when searching for Most Efficient Window Air Conditioners.

Browse the top-ranked list of Most Efficient Window Air Conditioners below along with associated reviews and opinions.

Browse the top-ranked list of Most Efficient Window Air Conditioners below along with associated reviews and opinions.

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  1. Top comment

    "good ac...The best...Central air broke in my mobile home instead spending 2-3k for a new one I brought this cools the whole 750sq ft. Only down side is I found it a month after I bought it for $319 at BJs and was unable to get them to price match...The noise it make is the usual air conditioner sound and it doesn't bother me so it must be ok."

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    Product Description

    Maintain comfortable temperatures in an 850 sq. ft. area with this 15,000 BTU Frigidaire air conditioner. It dehumidifies up to 3.5 pints per hour to keep air feeling dry, and the 24-hour on/off timer helps save energy. This Frigidaire air conditioner has a remote thermostat for keeping an accurate ambient temperature.
    Your price for this item is $399.99
    Top comment

    "good ac...The best...Central air broke in my mobile home instead spending 2-3k for a new one I brought this cools the whole 750sq ft. Only down side is I found it a month after I bought it for $319 at BJs and was unable to get them to price match...The noise it make is the usual air conditioner sound and it doesn't bother me so it must be ok."

    ""

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    Product Description

    Maintain comfortable temperatures in an 850 sq. ft. area with this 15,000 BTU Frigidaire air conditioner. It dehumidifies up to 3.5 pints per hour to keep air feeling dry, and the 24-hour on/off timer helps save energy. This Frigidaire air conditioner has a remote thermostat for keeping an accurate ambient temperature.
  2. Top comment

    "Love it...Cool AC...Sometimes on the high setting it is a little noisier than I would like it but it is what it is....I purchased this window unit for an upstairs bedroom that is difficult to keep cool in a very old house... This unit's quiet and has a great modern look but most important it's extremely energy efficient!"

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    Product Description

    Install this 8000 BTU Frigidaire smart room air conditioner to keep the heat at bay. Its Cool Connect function is compatible with Amazon Alexa and Google Assistant, so you can turn it on and off or adjust the temperature using only your smartphone or tablet. This Frigidaire smart room air conditioner has LED lighting that creates a sleek look.
    Your price for this item is $329.99
    Top comment

    "Love it...Cool AC...Sometimes on the high setting it is a little noisier than I would like it but it is what it is....I purchased this window unit for an upstairs bedroom that is difficult to keep cool in a very old house... This unit's quiet and has a great modern look but most important it's extremely energy efficient!"

    ""

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    Product Description

    Install this 8000 BTU Frigidaire smart room air conditioner to keep the heat at bay. Its Cool Connect function is compatible with Amazon Alexa and Google Assistant, so you can turn it on and off or adjust the temperature using only your smartphone or tablet. This Frigidaire smart room air conditioner has LED lighting that creates a sleek look.
  3. Top comment

    "not bad...Good AC...Quiet, and because it is not electronic it works on the switch in the wall...set it in a high space through the wall and forget setting it again....I do a happy dance every time I turn it on because I'm so thrilled that I CAN!"

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    Product Description

    Keep your space comfortable with this Frigidaire air conditioner. Its efficient temperature control reliably maintains a preset room temperature, and the SpaceWise adjustable side panels modify its 16-inch profile to best fit your windows. This Frigidaire air conditioner's antibacterial filter minimizes room odor and airborne particles for better air quality.
    Your price for this item is $139.99
    Save $10
    The previous price was $149.99
    Top comment

    "not bad...Good AC...Quiet, and because it is not electronic it works on the switch in the wall...set it in a high space through the wall and forget setting it again....I do a happy dance every time I turn it on because I'm so thrilled that I CAN!"

    ""

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    Product Description

    Keep your space comfortable with this Frigidaire air conditioner. Its efficient temperature control reliably maintains a preset room temperature, and the SpaceWise adjustable side panels modify its 16-inch profile to best fit your windows. This Frigidaire air conditioner's antibacterial filter minimizes room odor and airborne particles for better air quality.
  4. Top comment

    "Nice AC...Good AC...The Ac performs well, good modes a remote and the best is a clean air filter....It has been over 110 degrees F for a week and this little AC worked great."

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    Product Description

    Keep your home cool and comfortable with this Frigidaire window-mounted air conditioner. Providing 6000 BTUs, it's strong enough to chill a room that measures 250 square feet. Its antibacterial mesh filter keeps the air you breathe fresh and clean. Cool off on a hot day with this Frigidaire window-mounted air conditioner.
    Your price for this item is $225.99
    Save $4
    The previous price was $229.99
    Top comment

    "Nice AC...Good AC...The Ac performs well, good modes a remote and the best is a clean air filter....It has been over 110 degrees F for a week and this little AC worked great."

    ""

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    Product Description

    Keep your home cool and comfortable with this Frigidaire window-mounted air conditioner. Providing 6000 BTUs, it's strong enough to chill a room that measures 250 square feet. Its antibacterial mesh filter keeps the air you breathe fresh and clean. Cool off on a hot day with this Frigidaire window-mounted air conditioner.
  5. Top comment

    "Love it...Best AC...This is the best Air Conditloner I ever own I like the app I can turn the air on when I leave work and the house is cool when I get home...I love my new smart air conditioner it works perfect and I can turn it on from work with my phone"

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    Product Description

    Maintain a comfortable indoor environment with this compact 12000 BTU Frigidaire air conditioner. Energy saver and sleep modes conserve electricity, while the remote control provides for easy operation from across the room. This 1000W Frigidaire air conditioner cools a 550 sq. ft. area, so it's good for a bedroom or small office.
    Your price for this item is $469.99
    Top comment

    "Love it...Best AC...This is the best Air Conditloner I ever own I like the app I can turn the air on when I leave work and the house is cool when I get home...I love my new smart air conditioner it works perfect and I can turn it on from work with my phone"

    ""

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    Product Description

    Maintain a comfortable indoor environment with this compact 12000 BTU Frigidaire air conditioner. Energy saver and sleep modes conserve electricity, while the remote control provides for easy operation from across the room. This 1000W Frigidaire air conditioner cools a 550 sq. ft. area, so it's good for a bedroom or small office.
  6. Top comment

    "Good AC...Great AC...This was a great buy for this size window unit.It works great and cools very well.We purchased this as an extra one and we got a great deal on it....I bought it late in the season so this wasn't available for display in the store, but was able to buy from the BestBuy website and picked up in store right away."

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    Product Description

    With 3 fan speeds and 3 cool settings, this Frigidaire FFRA0811R1 air conditioner helps you maintain a comfortable temperature in your bedroom throughout the summer. An antibacterial filter eliminates dust and odors for fresh, clean air.
    Your price for this item is $269.99
    Top comment

    "Good AC...Great AC...This was a great buy for this size window unit.It works great and cools very well.We purchased this as an extra one and we got a great deal on it....I bought it late in the season so this wasn't available for display in the store, but was able to buy from the BestBuy website and picked up in store right away."

    ""

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    Product Description

    With 3 fan speeds and 3 cool settings, this Frigidaire FFRA0811R1 air conditioner helps you maintain a comfortable temperature in your bedroom throughout the summer. An antibacterial filter eliminates dust and odors for fresh, clean air.
  7. Top comment

    "Great AC...Good Buy...It arrived and looked great in window but after 1 day it started to hum and had it checked and a bearing was going out....There was a power outage when it was turned on and once the power was restored, it automatically turned back on."

    ""

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    Product Description

    Create comfort in rooms up to 550 square feet with this Frigidaire air conditioner. Eight-direction air distribution ensures even cooling throughout the room. A remote lets you control temperature and fan speed from wherever you are in the room. An antibacterial filter helps this Frigidaire air conditioner reduce bacteria and odors in your space.
    Your price for this item is $339.99
    Save $30
    The previous price was $369.99
    Top comment

    "Great AC...Good Buy...It arrived and looked great in window but after 1 day it started to hum and had it checked and a bearing was going out....There was a power outage when it was turned on and once the power was restored, it automatically turned back on."

    ""

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    Product Description

    Create comfort in rooms up to 550 square feet with this Frigidaire air conditioner. Eight-direction air distribution ensures even cooling throughout the room. A remote lets you control temperature and fan speed from wherever you are in the room. An antibacterial filter helps this Frigidaire air conditioner reduce bacteria and odors in your space.
  8. Top comment

    "Good buy...GREAT AC...They're ok with 68-72 in the winter, so that's a puzzler... Simply having this unit in the window causes a substantial increase in relative humidity (6-20%)....It is attractive in the window and I am pleased with what I have experienced so far."

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    Product Description

    Cool bedrooms and small living areas effectively with this 6000 BTU LG window air conditioner. Its three-speed cooling fan lets you adjust the level of air flow, while its energy-saver function helps keep electric bills down. The remote control on this LG window air conditioner lets you easily adjust the temperature from anywhere in the room.
    Your price for this item is $177.99
    Save $12
    The previous price was $189.99
    Top comment

    "Good buy...GREAT AC...They're ok with 68-72 in the winter, so that's a puzzler... Simply having this unit in the window causes a substantial increase in relative humidity (6-20%)....It is attractive in the window and I am pleased with what I have experienced so far."

    ""

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    Product Description

    Cool bedrooms and small living areas effectively with this 6000 BTU LG window air conditioner. Its three-speed cooling fan lets you adjust the level of air flow, while its energy-saver function helps keep electric bills down. The remote control on this LG window air conditioner lets you easily adjust the temperature from anywhere in the room.
  9. Top comment

    "Great AC...Great A/C...I did increase fan speed to medium a few times during the summer but for the most part it remained on low....I ordered my product at the store and it came in on time."

    ""

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    Product Description

    Cool rooms as big as 450 square feet with this Frigidaire window air conditioner. Featuring three different speeds, this fan lets you control the amount of air movement in the room. This air conditioner also covers eight directions so you benefit from even distribution of cool air. Electronic controls make it easy to operate this Frigidaire window air conditioner.
    Your price for this item is $319.99
    Top comment

    "Great AC...Great A/C...I did increase fan speed to medium a few times during the summer but for the most part it remained on low....I ordered my product at the store and it came in on time."

    ""

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    Product Description

    Cool rooms as big as 450 square feet with this Frigidaire window air conditioner. Featuring three different speeds, this fan lets you control the amount of air movement in the room. This air conditioner also covers eight directions so you benefit from even distribution of cool air. Electronic controls make it easy to operate this Frigidaire window air conditioner.
  10. Top comment

    "Good ac...Love it....The units function is a pleasant surprise in that within a few moments it will blow and keep blowing the same degree of extreme cold air without backing down....I installed this a/c in a 2200 square foot shop and it cools it right down nice and quick."

    ""

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    Product Description

    Cool off during those sweltering summer heat waves with this Frigidaire window-mounted air conditioner. This room air conditioning unit measures just under 19 inches high by 26.5 inches wide and fits windows between 31 and 42 inches wide. This Frigidaire window-mounted air conditioner provides low noise levels and uses three different directional fan speeds.
    Your price for this item is $599.99
    Save $70
    The previous price was $669.99
    Top comment

    "Good ac...Love it....The units function is a pleasant surprise in that within a few moments it will blow and keep blowing the same degree of extreme cold air without backing down....I installed this a/c in a 2200 square foot shop and it cools it right down nice and quick."

    ""

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    Product Description

    Cool off during those sweltering summer heat waves with this Frigidaire window-mounted air conditioner. This room air conditioning unit measures just under 19 inches high by 26.5 inches wide and fits windows between 31 and 42 inches wide. This Frigidaire window-mounted air conditioner provides low noise levels and uses three different directional fan speeds.
  11. Top comment

    "Cools Good...works well...Highly recommended when a casement window air conditioner is needed....Installation could be done by one person, but a second helping hand would make it easier."

    ""

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    Product Description

    Keep indoor environments comfortable with this 10,000 BTU Frigidaire air conditioner. Its 24-hour preset timer lets you program operational periods to match your schedule, and its quick mode temporarily speeds up the fan for fast cooling or warming action. This casement window Frigidaire air conditioner has an antibacterial filter to reduce air pollutants.
    Top comment

    "Cools Good...works well...Highly recommended when a casement window air conditioner is needed....Installation could be done by one person, but a second helping hand would make it easier."

    ""

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    Product Description

    Keep indoor environments comfortable with this 10,000 BTU Frigidaire air conditioner. Its 24-hour preset timer lets you program operational periods to match your schedule, and its quick mode temporarily speeds up the fan for fast cooling or warming action. This casement window Frigidaire air conditioner has an antibacterial filter to reduce air pollutants.
  12. Top comment

    "Great AC!...Great unit...I love this A/C....It cools the whole apartment and that's with a basic temp between 72 and 74....It's so easy and simple to use and you feel results immediately......The unit has a strong blower fan and cools down the room in minutes."

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    Product Description

    Stay cool with this 12,000 BTU RCA window air conditioner. It chills up to 550 sq. ft. of space for consistent comfort in the room, and the remote lets you adjust temperature and fan speed from afar. The integrated timer and energy-saver setting on this RCA window air conditioner enhance its efficiency.
    Top comment

    "Great AC!...Great unit...I love this A/C....It cools the whole apartment and that's with a basic temp between 72 and 74....It's so easy and simple to use and you feel results immediately......The unit has a strong blower fan and cools down the room in minutes."

    ""

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    Product Description

    Stay cool with this 12,000 BTU RCA window air conditioner. It chills up to 550 sq. ft. of space for consistent comfort in the room, and the remote lets you adjust temperature and fan speed from afar. The integrated timer and energy-saver setting on this RCA window air conditioner enhance its efficiency.
  13. Top comment

    "Good unit....Great item...Perfect window air conditioner for a medium room...It is very quiet for what it is and the light bill appears to show a drop."

    ""

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    Product Description

    Blast cool air throughout your home with this 18,000 BTU Frigidaire window-mounted air conditioner. Keep control of its operation with the easy-to-use control panel on the front of the unit, or use the handy remote control to power it off or change the temperature from a distance. Stay cool all summer long with this incredibly functional Frigidaire window-mounted air conditioner.
    Your price for this item is $529.99
    Save $70
    The previous price was $599.99
    Top comment

    "Good unit....Great item...Perfect window air conditioner for a medium room...It is very quiet for what it is and the light bill appears to show a drop."

    ""

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    Product Description

    Blast cool air throughout your home with this 18,000 BTU Frigidaire window-mounted air conditioner. Keep control of its operation with the easy-to-use control panel on the front of the unit, or use the handy remote control to power it off or change the temperature from a distance. Stay cool all summer long with this incredibly functional Frigidaire window-mounted air conditioner.
  14. Top comment

    "Great a/c...Cool deal...I have it in an area about 300 sq ft, it's made to cool slightly larger area but I live in Hawaii and the room gets full sun all afternoon....It is the first window unit I have ever used the energy saver on and was completely happy with it."

    ""

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    Product Description

    Cool rooms up to 350 sq. ft. with this 8000 BTU RCA window air conditioner. This Energy Star unit has an 11.5 EER to save you money, and the LED display and full-function remote let you change the temperature even in low light. This RCA window air conditioner has a timer to program operating times.
    Your price for this item is $249.99
    Top comment

    "Great a/c...Cool deal...I have it in an area about 300 sq ft, it's made to cool slightly larger area but I live in Hawaii and the room gets full sun all afternoon....It is the first window unit I have ever used the energy saver on and was completely happy with it."

    ""

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    Product Description

    Cool rooms up to 350 sq. ft. with this 8000 BTU RCA window air conditioner. This Energy Star unit has an 11.5 EER to save you money, and the LED display and full-function remote let you change the temperature even in low light. This RCA window air conditioner has a timer to program operating times.
  15. Top comment

    "Love it...Very cool now....The A/C works flawlessly and I really like being able to program it to turn on in the afternoon while I am at work so I can come home to a cool house and not have to leave it running all day....Easy to install and fits in most window sizes."

    ""

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    Product Description

    Beat the summer heat with this Frigidaire air conditioner, which packs 8,000 BTUs of cooling power. The energy-saver mode cuts costs on utility bills, and its programmable timer can be set to turn the unit on and off automatically. Adjustable side panels let this Frigidaire air conditioner fit in casement or slider windows.
    Your price for this item is $451.99
    Save $48
    The previous price was $499.99
    Top comment

    "Love it...Very cool now....The A/C works flawlessly and I really like being able to program it to turn on in the afternoon while I am at work so I can come home to a cool house and not have to leave it running all day....Easy to install and fits in most window sizes."

    ""

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    Product Description

    Beat the summer heat with this Frigidaire air conditioner, which packs 8,000 BTUs of cooling power. The energy-saver mode cuts costs on utility bills, and its programmable timer can be set to turn the unit on and off automatically. Adjustable side panels let this Frigidaire air conditioner fit in casement or slider windows.