Skip to contentGo to Product Search
Main Content
Skip to contentGo to Product Search
Main Content
Categories & Filters
Best Buy

/

heating, cooling & air quality

/

air conditioners

/

window air conditioners

High Efficiency Air Conditioners

Air conditioning is a necessity in many parts of the world, and it's also a luxury in some. But no matter where you live, it's always good to know you have an efficient air conditioner to help you stay cool. Browse the top-ranked list of high efficiency air conditioners below along with associated reviews and opinions.

Read More
Results
Main Results

  1. Whirlpool - 8,000 BTU Window Mounted Inverter Air Conditioner with Remote Control - White

    SKU: J39H83WKHP

    Product Description

    An energy-efficient white window air conditioner with inverter technology, remote control, and programmable timer for comfort.
    See all Window Air Conditioners
    Your price for this item is $399.99

  2. Friedrich - Uni-Fit 8,000 BTU Wall Air Conditioner with Heater with Remote Control Wi-Fi Enabled - White

    SKU: JXWT5W463Z

    Product Description

    A white, Wi-Fi enabled wall air conditioner and heater with remote control, Energy Star certification, and smart home compatibility.
    See all In-Wall Air Conditioners
    Your price for this item is $889.99

  3. Keystone - 12,000/11,600 BTU 230V Window Air Conditioner with 11,000 BTU Supplemental Heat Capability - White

    SKU: J39H83W9ZQ

    Product Description

    A versatile white window/wall air conditioner with supplemental heat, remote control, and energy-saving features.
    See all Window Air Conditioners
    Your price for this item is $449.99
    Save $50
    The previous price was $499.99

  4. Friedrich - Chill Premier 8,000 BTU Window & Wall Air Conditioner with Remote Control Wi-Fi Enabled 350 Sq.Ft - White

    SKU: JXWT5W4H2Q

    Product Description

    A white Wi-Fi enabled air conditioner with remote, app control, and quiet operation for rooms up to 350 sq. ft.
    See all Window Air Conditioners
    Your price for this item is $479.99

  5. Keystone - 450 Sq. Ft. 10,000 BTU Casement Window Air Conditioner - White

    SKU: J39H83WLHT

    casement window air conditioner...I bought this and it cools 4 rooms when I keep it on high. The part of the house I use. It's a little pricey as the casement air conditioners are but it does the job....Sliding...

    Product Description

    A white casement window air conditioner with 10,000 BTU, remote control, timer, and washable mesh filter.
    See all Window Air Conditioners
    Your price for this item is $434.99
    Save $65
    The previous price was $499.99

  6. Aeric - 700 Sq. Ft Portable Air Conditioner with 10,000 BTU Heater - White

    SKU: J39H9CHJ9G

    Air conditioner...I like it, it works very well, it is perfect for a large room, adaptable wherever I want to put it, very practical, excellent air conditioner....I looked around for quite a while for...

    Product Description

    A portable white air conditioner and heater with 10,000 BTU, dehumidifier, timer, and remote control.
    See all Portable Air Conditioners
    Your price for this item is $529.99

  7. Aeric - 700 Sq. Ft Portable Air Conditioner - White

    SKU: J39H9CHJSH

    I did contact customer support to hopefully help with replacement but I'm still waiting for a response. These air conditioners work ok but I am disappointed I'm having an issue already with one of them....

    Product Description

    A white portable air conditioner with dehumidifier, auto-evaporation, remote control, and three airflow speeds.
    See all Portable Air Conditioners
    Your price for this item is $499.99

  8. Keystone - 18,800/18,400 BTU 230V Window Air Conditioner with 16,000 BTU Supplemental Heat Capability - White

    SKU: J39H83W9Z5

    So far the air conditioner is working great, juat in time for a heat wave..

    Product Description

    A versatile white window or wall unit offering powerful cooling, supplemental heat, remote control, and quiet operation.
    See all Window Air Conditioners
    Your price for this item is $699.99

  9. Aeric - 400 Sq. Ft. Portable Air Conditioner - White

    SKU: J39H9CHJ9R

    Product Description

    A portable white air conditioner with remote control, timer, and auto shut-off, ideal for 400 sq. ft. rooms.
    See all Portable Air Conditioners
    Your price for this item is $279.99

  10. Keystone - 8,000 BTU 115V Through-the-Wall Air Conditioner with Follow Me LCD Remote Control - White

    SKU: J39H83KCXW

    Product Description

    A white through-the-wall air conditioner with 8,000 BTU, remote control, and energy-saving features.
    See all In-Wall Air Conditioners
    Your price for this item is $529.99
1-18 of 176 items
0 items

Best Sellers

Related Pages

Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada

In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.