Skip to contentGo to Product Search
Sterling
45575 Dulles Eastern Plz
Ste 188
Sterling, VA 20166
Opens at 10 am
Find Another Store
Main Content
Best Buy

/

heating, cooling & air quality

/

air conditioners

/

in-wall air conditioners

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.

Read More
Results
Main Results

  1. LG - 440 Sq. Ft. 9,500/9,800 BTU 230V Through-the-Wall Air Conditioner - White

    SKU: J7G565LGP7

    Great Air Conditioners...I love them....Love it

    Product Description

    A white through-the-wall air conditioner with remote control, 3 speeds, timer, and energy-saving features.
    See all In-Wall Air Conditioners
    Your price for this item is $549.00
    Save $130
    The previous price was $679.99

  2. LG - 440 Sq. Ft. 9,800 BTU Through-the-Wall Air Conditioner - White

    SKU: J7G565LGYW

    Great AC unit...Works great love my ac unit needed a new one for the summer...Great wall air conditioner...This LG air conditioner is a great deal for the price- it works great

    Product Description

    A white through-the-wall air conditioner with 9,800 BTU, remote control, timer, and washable filter.
    See all In-Wall Air Conditioners
    Your price for this item is $579.00
    Save $50
    The previous price was $629.99

  3. Frigidaire - 550 Sq. Ft. 12,000 BTU Wall-Mounted Air Conditioner - White

    SKU: J7CJ366XY9

    Great features...I love the features, and that I can direct the air flow....But all in all, it's a great unit and temps/fan choices are great with a sleep mode and timer....Great (12K BTU Wall) Air Conditioner!...What...

    Product Description

    A white smart window air conditioner with 12,000 BTU, remote control, sleep mode, and washable filter.
    See all In-Wall Air Conditioners
    Your price for this item is $789.99

  4. LG - 450 Sq. Ft. 10,000 BTU 230V Through-the-Wall Air Conditioner with 11,200 BTU Supplemental Heat Function - White

    SKU: J7G5655ZYS

    Product Description

    A white through-the-wall unit offering 10,000 BTU cooling, supplemental heat, remote control, and washable filter.
    See all In-Wall Air Conditioners
    Your price for this item is $729.00
    Save $60
    The previous price was $789.99

  5. Whynter - 350 Sq. Ft. Portable Air Conditioner - White

    SKU: J3RP95Y3C9

    Excellent quality at a great price!...I absolutely love my Whitner 11,000 BTU dual hose portable AC!...Again, overall it is excellent quality for a great price!...I would recommend this to my best friends...

    Product Description

    A portable white dual hose air conditioner with remote control, carbon filter, and efficient cooling for 350 sq. ft.
    See all Portable Air Conditioners
    Your price for this item is $539.00

  6. LG - 150 Sq. Ft. 5,100 BTU DOE (9,000 BTU ASHRAE) Portable Air Conditioner - White

    SKU: J7G565553W

    Product Description

    A portable white air conditioner with 5,100 BTU, built-in dehumidifier, timer, and remote control.
    See all Portable Air Conditioners
    Your price for this item is $302.35
    Save $0
    The previous price was $302.45

  7. LG - 250 Sq. Ft. 6,000 BTU DOE (10,000 BTU ASHRAE) Portable Air Conditioner - White

    SKU: J7G5655587

    Love it for my room!...I love that it's compact and easy to move around with no issues....But overall, it's a great all-in-one cooling system, especially for renters or small spaces....I love that it’s...

    Product Description

    A portable white air conditioner with 6,000 BTU, built-in dehumidifier, timer, and remote control.
    See all Portable Air Conditioners
    Your price for this item is $329.95

  8. LG - 450 Sq. Ft. 10,200 BTU DOE (14,000 BTU ASHRAE) Smart Portable Air Conditioner with Supplemental Heater - White

    SKU: J7G56555GF

    Great product...Cools the room down quickly not too loud easy and convenient to use during hot day it is great to use...Great Multi-Use AC/Heating Unit

    Product Description

    A smart, portable white unit offering 10,200 BTU cooling, 12,000 BTU heating, and voice control compatibility.
    See all Portable Air Conditioners
    Your price for this item is $569.00
    Save $30
    The previous price was $599.99

  9. LG - 150 Sq. Ft. 5,000 BTU Window Air Conditioner - White

    SKU: J7G5655487

    The best of the best to solve the needs in my home every day without asking for anything in return...It works great I love it wouldn't want nothing else it takes care of everything I needed to take care...

    Product Description

    A compact white window unit with 5,000 BTU, two fan speeds, timer, and washable filter.
    See all Window Air Conditioners
    Your price for this item is $179.99

  10. LG - 450 Sq. Ft. 10,000 BTU Window Air Conditioner - White

    SKU: J7G56554VL

    I didn’t love the “panels” that fill the rest of the window….

    Product Description

    A white window air conditioner with 10,000 BTU cooling, dehumidifier, remote control, and washable filter.
    See all Window Air Conditioners
    Your price for this item is $379.00
1 - 10 of 10 items
10 items

Best Sellers

Related Pages

FAQ

Common options include window air conditioners, portable air conditioners, through-the-wall units, and ductless mini-split systems. Each type has different installation and control requirements.

Helpful features may include programmable timers, remote controls, digital displays, multiple fan speeds, sleep modes, washable filters, and smart-home connectivity.

Some models include built-in Wi-Fi or support app-based controls, allowing you to adjust settings, create schedules, and monitor the unit from a compatible smartphone.

Turn off the unit, remove the filter according to the user manual, and clean it as directed. Reinstall the filter only after it is completely dry.

Cooling mode lowers the indoor temperature, while dehumidifying mode focuses on removing moisture from the air with less emphasis on changing the temperature.