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Indoor air conditioners are one of the best ways to beat the summer heat. For many, the convenience of central air remains out of reach, which leaves the window AC unit as the next best thing.
Today’s window air conditioners are much better than what you might be used to, and nothing like the massive energy hogs they once were. Modern window units provide relief from searing temperatures, remove humidity and use less electricity than ever before
However, if you don’t do your homework, it’s easy to end up with the wrong machine. You might get stuck with something too big, too small or that simply doesn’t fit where you want.
What Size Air Conditioner Do You Need?
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BTU 5,000-6,500
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BTU 7,000-8,500
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BTU 9,800-12,500
The Rules for Keeping Cool.
Window air conditioners typically have a cooling capacity ranging from 5,000 to 12,500 British thermal units (Btu/hr.). As a rule of thumb, an air conditioner needs 20 Btu for each square foot of living space.But other considerations, such as the ceiling height and the size of your windows and doorways, might call for more cooling power. To measure your room, multiply the length by the width. Add together the size of rooms that aren’t separated by doors, because the air conditioner will need to cool both spaces. Energy Star recommends that you make adjustments for the following circumstances:• If the room is heavily shaded, reduce capacity by 10 percent.
• If the room is very sunny, increase capacity by 10 percent.
• If more than two people regularly occupy the room, add 600 Btu for each additional person.
• If the unit is used in a kitchen, increase capacity by 4,000 Btu.
Showing 145–192 of 234 results
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Koldfront WTC12001WSLV 12,000 BTU 208/230V Through the Wall Heat/Cool Air Conditioner with Sleeve
$744.00 Learn More -
Koldfront WTC14001W 14000 BTU 208/230V Through the Wall Air Conditioner with 10600 BTU Heater with Remote
$725.00 Learn More -
Koldfront WTC14001WSLV 14000 BTU 208/230V Through the Wall Air Conditioner with 10600 BTU Heater with Remote and Sleeve
Learn More -
Koldfront WTC8001WSLV 8,000 BTU Through the Wall Air Conditioner with 4200 BTU Heater
$608.00 Learn More -
LEMBERI 8000 BTU Portable Air Conditioners with Remote Control,Quiet Room AC Unit up to 350 Sq Ft,3 in 1 Compact Cooling Unit with Dehumidifier and Fan Functions, with Remote Control
$199.99 Learn More -
Sale!
LG 10,000 BTU Dual Inverter Smart Window Air Conditioner, Cools 450 Sq. Ft., Ultra Quiet Operation, Up to 25% More Energy Savings, ENERGY STAR®, works with LG ThinQ, Amazon Alexa and Hey Google, 115V
Original price was: $469.99.$401.36Current price is: $401.36. Learn More -
LG 10000 BTU Window Air Conditioners [2023 New] Dual Inverter Remote WiFi Enabled App Ultra-Quiet Washable Filter Cools 450 Sq.Ft AC Unit air conditioner Easy Install White LW1022FVSM
$479.00 Learn More -
LG 18,000 BTU Window Air Conditioner with Supplemental Heat, Cools 1,000 Sq.Ft. (25′ x 40′ Room Size), Electronic Controls with Remote, 2 Cooling, Heating & Fan Speeds, Slide In-Out Chassis, 230/208V
$729.99 Learn More -
Sale!
LG 23,000 BTU Window Air Conditioner with Supplemental Heat, Cools 1,440 Sq.Ft. (36′ x 40′ Room Size), Electronic Controls with Remote, 2 Cooling, Heating & Fan Speeds, Slide In-Out Chassis, 230/208V
Original price was: $889.99.$799.99Current price is: $799.99. Learn More -
LG 24,000 BTU Window Air Conditioner
$679.00 Learn More -
Sale!
LG 6,000 BTU (DOE) / 8,000 BTU (ASHRAE) Portable Air Conditioner, Cools 250 Sq.Ft. (10′ x 25′ room size), Quiet Operation, LCD Remote, Window Installation Kit Included, 115V
Original price was: $389.99.$322.03Current price is: $322.03. Learn More -
LG 6,000 BTU Window Conditioner, Cools 250 Sq.Ft. (10′ x 25′ Room Size), Quiet Operation, Electronic Control with Remote, 2 Cooling & Fan Speeds, 2-Way Air Deflection, Auto Restart, 115V, White
$259.99 Learn More -
Sale!
LG 6000 BTU Portable Air Conditioners with Wheels for Easy Install & Mobility LCD Display Remote Control Cools 260 Sq.Ft 3-in-1 function Timer air conditioner AC Unit Home Room White LP0623WSR
Original price was: $327.68.$286.86Current price is: $286.86. Learn More -
LG 8,000 BTU Smart Window Air Conditioner, 350 Sq. Ft, Smartphone and Voice Control Works ThinQ, Amazon Alexa and Hey Google, 3 Cool & Fan Speeds, 115V, White
Learn More -
Sale!
LG 8000 BTU Window Air Conditioners 2023 New Remote Control WiFi Enabled App Ultra-Quiet Washable Filter Cools 340 Sq. Ft for Small & Medium Room AC Unit air conditioner Easy Install White LW8017ERSM1
Original price was: $309.00.$289.00Current price is: $289.00. Learn More -
LG LW1217ERSM 12,000 BTU Smart Window Air Conditioner, Cools up to 550 Sq. Ft, Smartphone and Voice Control Works ThinQ, Amazon Alexa and Hey Google, Energy Star, 3 Cool & Fan Speeds, 115V, White
$449.99 Learn More -
Litake 5,000 BTU Window Air Conditioner – Cool Up To 150 Sq. Ft. with 2 Fan Speeds, Energy Saving, Dehumidification, Quiet, Water Self Evaporation, Cooling Only, Elegant White design
$139.99 Learn More -
MAXWELL DAIKIN 3-Zone 4MXS Air Conditioner Heat Pump 15 ft. Installation Kit + Wall Bracket (12k+12K+12K)
$4,304.98 Learn More -
MAXWELL DAIKIN 3-Zone 4MXS Air Conditioner Heat Pump 15 ft. Installation Kit + Wall Bracket (12k+12K+18K)
$4,446.73 Learn More -
MAXWELL DAIKIN 3-Zone 4MXS Air Conditioner Heat Pump 15 ft. Installation Kit + Wall Bracket (15k+15K+18K)
$4,094.98 Learn More -
Sale!
Midea 10,000 BTU U-Shaped Smart Inverter Window Air Conditioner–Cools up to 450 Sq. Ft., Ultra Quiet with Open Window Flexibility, Works with Alexa/Google Assistant, 35% Energy Savings, Remote Control
Original price was: $449.00.$356.10Current price is: $356.10. Learn More -
Sale!
Midea 5,000 BTU EasyCool Small Window Air Conditioner – Cool up to 150 Sq. Ft. with Easy-to-Use Mechanical Controls and Reusable Filter, Perfect for Small Bedroom, Living Room, Home Office
Original price was: $179.00.$159.99Current price is: $159.99. Learn More -
Sale!
Midea 8,000 BTU U-Shaped Smart Inverter Air Conditioner –Cools up to 350 Sq. Ft., Ultra Quiet with Open Window Flexibility, Works with Alexa/Google Assistant, 35% Energy Savings, Remote Control
Original price was: $399.00.$298.27Current price is: $298.27. Learn More -
Sale!
Midea 8,000 BTU U-Shaped Smart Inverter Window Air Conditioner–Remove 99.99% SARS-COV-2, Ultra Quiet with Open Window Flexibility, Compatible with Alexa/Google Assistant, 35% Energy Savings,White
Original price was: $409.00.$384.55Current price is: $384.55. Learn More -
Midea U-Shaped Inverter Window Air Conditioner 12,000BTU with Open Window Flexibility, Robust Installation,Extreme Quiet, 35% Energy Saving, Smart Control, Alexa, Remote, Bracket Included (Renewed)
$249.99 Learn More -
Mini Air Conditioner, 3-IN-1 Personal Air Cooler, Fan/Cooling/Misting/7-Color Night Light, Portable Evaporative Air Cooler for Bedroom Desk
$19.99 Learn More -
Mini Air Conditioner, AIRHALF 3-IN-1 Personal Air Cooler, Fan/Cooling/Misting/7-Color Night Light, USB Rechargeable with Remote, 100° Rotation, Portable Evaporative Air Cooler for Bedroom Office Desk
$59.99 Learn More -
mollie 5,000 BTU Window Air Conditioner with Mechanical Controls and easy-to-Clean Washable Filter, Cool up to 150 Sq. Ft. For Bedrooms Guest Rooms
$189.99 Learn More -
Sale!
Newair Portable Air Conditioner & Dehumidifier | 8,000 BTU | Compact White Portable AC | Portable Fan With 3 Cooling Modes Window Air Conditioner | Small A/C Swamp Cooler With Remote
Original price was: $329.00.$301.72Current price is: $301.72. Learn More -
Outdoor Portable Air Conditioner & Heater for Tent Camping- 2700 BTU Tent Air Conditioner with Heat, Dehumidifier, 3-Speed Fan, Quiet Tent Air Conditioner for Camping Tent, RVs, Outdoors and Indoors
$439.97 Learn More -
Sale!
Paris Rhône Portable Air Conditioners 3-IN-1 Evaporative Air Cooler, 3 Speeds Air Conditioner Portable for 1 Room with Remote, 12H Timer, 60° Oscillation Swamp Cooler Fans for Bedroom
Original price was: $74.99.$59.99Current price is: $59.99. Learn More -
Sale!
Pasapair 10000BTU WiFi Portable Air Conditioner – Portable AC with Remote&App Control – 4-in-1 AC Unit for Room with Cooling, Dehumidifier, Fan, Sleep Model- Efficient and Energy-Saving
Original price was: $399.99.$239.99Current price is: $239.99. Learn More -
Pasapair 8000BTU WiFi Portable Air Conditioner – Portable AC with Remote&App Control – 4-in-1 AC Unit for Room with Cooling, Dehumidifier, Fan, Sleep Model- Efficient and Energy-Saving
$259.99 Learn More -
PELONIS 40”Oscillating Tower Fan | Remote Control | Quiet Stand Up | 3 Speed Settings | 3 Modes |15-Hour Timer | LED Display | for Bedroom Home Office Use| Black
$68.00 Learn More -
Personal Air Cooler,Rechargeable Battery Operated 60°&120° Auto Oscillation,Portable Air Conditioner Fan with 3 Wind Speeds & 3 Refrigeration,Ultra Quite Ice Cooler Fan for Home Bedroom Office Outdoor
$29.99 Learn More -
Portable Air Conditioner and Heater with Dehumidifier and Fan for Rooms Up to 250 Sq. Ft.with Remote Control
$531.75 Learn More -
Portable Air Conditioner with Multifunctional Function, Nature Air, Fast Heat Up, Wall Mounted Air Cooler Wide Angles Mobile with Operation Panel for Home Outdoor Picnic (With
$100.91 Learn More -
Portable Air Conditioner with Remote Control, 8,000 BTU Cools up to 350 Sq. Ft., LED Touch Panel, Built-in Dehumidifier, Fan, 3 in 1 Compact Indoor Quite AC Unit for Home Office Dorm RV
$199.99 Learn More -
Portable Air Conditioner, 4 in 1 Portable Air Conditioners for Car, Evaporative Coolers 3 adjustable speed, 3 Spray Modes – Desk Spray Fan for Room, Office and Outdoors
$65.27 Learn More -
Portable Air Conditioner, 5-IN-1 Evaporative Air Cooler Personal Mini Air Conditioner with 3 Speeds, Ultra-Quiet Fan 8-Hour Cooling for Bedroom, Living Room, Basement, Office & More
$39.99 Learn More -
Portable Air Conditioner, Mini Cooling and Heating Wall Mounted AC Fan, Low Noise Touch Control Small Air Cooler Heater Machine for Indoor Outdoor (With Print)
$114.18 Learn More -
Sale!
Portable Air Conditioners | 3-IN-1 Conditioner for Room Evaporative Cooler AC Unit Swamp with Humidifier, Remote, 3 Speed, 8H Timer, Big 8L Tank
Original price was: $119.99.$49.99Current price is: $49.99. Learn More -
Portable Air Conditioners 10,000 BTU, Global Air 3-in-1 Portable AC unit Built-in Dehumidifier & Fan Mode Cools up to 300 Sq.ft, Room Air Conditioner Portable with Remote Control, Window Exhaust Kit
$199.99 Learn More -
Portable Air Conditioners, 10000 BTU Portable AC for Room up to 450 Sq. Ft., 3-in-1 AC Unit, Dehumidifier & Fan with Digital Display, Remote Control, Window Installation Kit, 24H Timer, Sleep Mode
$269.99 Learn More -
Portable Air Conditioners, 11000 BTU(ASHRAE) /7000 BTU (SACC), Powerful AC Unit with Remote Controller,Cooling, Built-in Dehumidifier,Fan Modes,Reusable Filter,up to 300 Sq.Ft,New 2023 Model
$329.00 Learn More -
Portable Air Conditioners, 4-IN-1 Air Conditioner Portable for Room with 4 Modes 3 Speeds, 1.32 Gal Water Tank, Portable Ac w/Remote, 7H Timer, 90°Oscillation, Quiet Air Conditioner for Home Office
$120.00 Learn More -
Portable Air Conditioners, Personal Evaporative Air Cooler with 3 Wind Speed, Low Noise,Desktop Office, Home, Bedroom
$59.89 Learn More -
Portable Air Conditioners, SXYCMY 14,000 BTU Air Conditioner Portable for Room up to 750 Sq.Ft, 3-in-1 AC Unit with LED Function Display, Universal Casters, Installation Kit & Remote Control for Home
$514.37 Learn More