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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 97–144 of 234 results
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Friedrich WCT12A30A 27″ WallMaster Smart Thru-The-Wall Air Conditioner with 12000 Cooling BTU Capacity in White
$1,217.98 Learn More -
Frigidaire 10,000 BTU 115V Window-Mounted Compact Air Conditioner with Remote Control, White
$319.99 Learn More -
Sale!
Frigidaire 12,000 BTU Connected Window-Mounted Room Air Conditioner
Original price was: $439.99.$379.99Current price is: $379.99. Learn More -
Frigidaire 12000 Btu Cool Connect Smart Window Air Conditioner w/Wifi Control
$302.45 Learn More -
Frigidaire FFRA051WAE Window-Mounted Room Air Conditioner, 5,000 BTU with Temperature Control and Easy-to-Clean Washable Filter, in White
$179.00 Learn More -
Frigidaire FFRE053WAE Window Air Conditioner, 5000 BTU, White
$219.00 Learn More -
Frigidaire FFRE083WA1 Window-Mounted Room Air Conditioner, 8,000 BTU, White
$299.99 Learn More -
Frigidaire FFRE153WAE Window-Mounted Room Air Conditioner, 15,100 BTU with Energy Star Certified, Multi-Speed Fan, Sleep Mode, Programmable Timer, Easy-to-Clean Washable Filter, in White
$549.00 Learn More -
Sale!
Frigidaire FHPC082AC1 Portable Room Air Conditioner, 5500 BTU with a Multi-Speed Fan, Dehumidifier Mode, Easy-to-Clean Washable Filter, in White
Original price was: $349.00.$289.95Current price is: $289.95. Learn More -
Sale!
Frigidaire FHWW084WD1 Window Air Conditioner, 8000 BTU, White
Original price was: $339.00.$231.82Current price is: $231.82. Learn More -
GE AHV05LZ Window Air Conditioner with 5050 BTU Cooling Capacity, 115 Volts in White
$209.99 Learn More -
GE AHY08LZ Window Air Conditioner Complete with WiFi & Smart Home Connectivity | Energy Star Certified | Cools up to 350 Square Feet | 115 Volts | White
$269.97 Learn More -
GE Electronic Air Conditioner for Window | 6,000 BTU | Ultra-Quiet, Serentiy Series | Easy Install Kit & Remote Included | Minimal Noise, Maximum Cooling | Cools up to 250 Square Feet | 115 Volts
$445.88 Learn More -
GE Electronic Window Air Conditioner 6000 BTU, Efficient Cooling for Smaller Areas Like Bedrooms and Guest Rooms, 6K BTU Window AC Unit with Easy Install Kit, White
$269.00 Learn More -
GE PROFILE PHC08LY Window Air Conditioner, 8100 BTU, White
$439.00 Learn More -
GE Profile Ultra Quiet Window Air Conditioner 6,200 BTU, WiFi Enabled Energy Efficient for Small Rooms, Easy Installation with Included Kit, 6K Window AC Unit, Energy Star, White
$413.28 Learn More -
Sale!
GE Window Air Conditioner 5000 BTU, Efficient Cooling For Smaller Areas Like Bedrooms And Guest Rooms, 5K BTU Window AC Unit With Easy Install Kit, White
Original price was: $189.00.$149.00Current price is: $149.00. Learn More -
GOFLAME 8000BTU Portable Air Conditioner, 3-IN-1 Air Cooler & Dehumidifier with Remote Control, Sleep Mode, 2 Speeds and 24H Timer, Air Cooling Fan for Home & Office, White
$239.98 Learn More -
Goodman 9,000 BTU 18 SEER2 Ductless Mini Split Inverter Heat Pump System with Maxwell 15-ft Installation Kit 230V
$839.00 Learn More -
Goodman Mini Split 9,000 BTU 18 SEER2, Inverter Ductless Air Conditioner with Heat Pump System, Energy-Efficient Mini Split Air Conditioner, Installation Kit Included, 230V
$874.00 Learn More -
Gree Window Air Conditioner with Remote Control, 12000 BTU AC Unit for Room Bedroom, Low Noise AC Unit, LED Control Panel, Easy Installation, Cools Up to 550 sq ft
$320.53 Learn More -
Haier 6,200 BTU Ultra Quiet Window Air Conditioner for Small Rooms and Bedrooms, Control Using Remote, 6K Window AC Unit, Easy Install with Included Kit, White, Energy Star
$319.89 Learn More -
Haier ESAQ406T Serenity Series 6, 000 BTU 115V Window Air Conditioner with Ultra Quiet Sound Package
$384.33 Learn More -
Haier Window Air Conditioner 14000 BTU, Wi-Fi Enabled, Energy-Efficient Cooling for Large Rooms, 14K BTU Window AC Unit with Easy Install Kit, Control Using Remote or Smartphone App
$652.50 Learn More -
Hessaire MC37M Indoor or Outdoor Portable Oscillating Evaporative Swamp Air Cooler for 950 Square Feet of Space with Water Reservoir
$373.09 Learn More -
HOMCOM 8000 BTU Mobile Portable Air Conditioner for Cooling, Dehumidifier, and Ventilating, Portable AC Unit with Remote Control, 24H Timer, for Home Office, White
$298.99 Learn More -
hOmeLabs Window Air Conditioner 8000 BTU – Energy Star Certified, Digital Thermostat, Remote Control – Ideal for Rooms up to 350 Square Feet
$339.99 Learn More -
Honeywell 14,000 BTU Portable Air Conditioner with Heat Pump, Dehumidifier & Fan, Cools & Heats Rooms Up to 500-700 Sq. Ft., with Remote Control & Advanced LED Display (Black/Silver), MN4HFS9
$599.99 Learn More -
Honeywell 6,000 BTU Digital Window Air Conditioner, Remote, 4 Modes, Eco, 250 sq ft Coverage
$249.99 Learn More -
Ivation 12,000 BTU Portable Air Conditioner with Wi-Fi for Rooms Up to 450 Sq Ft (8,000 BTU SACC) 3-in-1 Smart App Control Cooling System, Dehumidifier and Fan with Remote, Exhaust Hose & Window Kit
$299.99 Learn More -
JHS 14,000 BTU Portable Air Conditioner, White (A020A-10KR)
$449.99 Learn More -
Joy Pebble Portable Air Conditioner 10000 BTU for 1 room, 3-in-1 AC Unit with Dehumidifier Cools up to 450 sq. ft, Energy Saving with ECO Mode, 2 Fan Speeds, 24H Timer, Remote Control
$239.99 Learn More -
KCL36A30A 28″ Kuhl Smart Air Conditioner with Cooling 35000 BTU QuietMaster Technology Slide Out Chassis Wi-Fi and Remote Controller in White
$2,499.00 Learn More -
Keystone 18,000 BTU 230V Window Mounted Air Conditioner & Dehumidifier with Smart Remote Control – Window AC Unit for Apartment, Living Room, Bedroom & Large Rooms up to 1000 Sq.Ft.
$919.94 Learn More -
Keystone 6,000 BTU Window Mounted Air Conditioner & Dehumidifier with Smart Remote Control – Quiet Window AC Unit for Apartment, Living Room, Bathroom & Small Rooms up to 250 Sq.Ft.
$259.99 Learn More -
Keystone Energy Star 10,000 BTU Window Mounted Air Conditioner & Dehumidifier with Smart Remote Control – Window AC for Apartment, Living Room, Garage, Small-Medium Rooms up to 450 Sq.Ft.
$389.99 Learn More -
Keystone Energy Star 10,000 BTU Window Mounted Inverter Air Conditioner with Quiet, High Efficiency Operation and Remote, Window AC Unit for Apartment, Living Room, Medium Rooms up to 450-Sq.Ft.
$399.99 Learn More -
Sale!
Keystone Energy Star 12,000 BTU 230V Through-the-Wall Air Conditioner with Follow Me LCD Remote Control (KSTAT12-2C)
Original price was: $699.99.$559.99Current price is: $559.99. Learn More -
Keystone Energy Star 6,000 BTU Window Mounted Air Conditioner & Dehumidifier with Smart Remote Control – Quiet Window AC Unit for Apartment, Living Room, Bathroom & Small Rooms up to 250 Sq.Ft.
$269.99 Learn More -
Sale!
Keystone KSTAW08BE 8,000 BTU Window Mounted Air Conditioner with Follow Me LCD Remote Control, Energy Saver and Sleep Mode, 24H Timer, and Auto-Restart, 8000, White
Original price was: $349.99.$329.99Current price is: $329.99. Learn More -
Sale!
Keystone KSTAW10BE 10,000 BTU Window-Mounted Air Conditioner with Follow Me LCD Remote Control, 10000, White
Original price was: $399.99.$230.01Current price is: $230.01. Learn More -
Keystone KSTHW18B 18,800 230V Air Conditioner with 16,000 Supplemental Heating, Window and Wall AC Unit for Living, Apartment, Large Rooms up to 1000 Sq.Ft, 18000 BTU, Bright White
$919.94 Learn More -
Keystone KSTHW25B 23,200 230V Wall Air Conditioner & 16,000 Smart Remote Control, Window AC and Heater with Dehumidifier Function for Large Rooms up to 1,500 Sq.Ft, 23200 BTU, Bright White
$919.94 Learn More -
Sale!
Keystone LCD 5,000 BTU Window Mounted Air Conditioner Star Follow Me Remote Control Energy Saver Sleep Mode Timer Auto-Restart AC for Rooms up to 150 Sq. Ft, 5000, White (KSTAW05CE)
Original price was: $239.99.$219.99Current price is: $219.99. Learn More -
Sale!
Keystone LCD, KSTAW12CE 12,000 BTU Window Mounted Air Conditioner Star Rating, Follow Me Remote Control, Energy Saver and Sleep Mode, Timer, and Auto-Restart, 12000, White
Original price was: $449.99.$389.99Current price is: $389.99. Learn More -
Klimaire 12,000 BTU 20.8 SEER2 Ductless Mini-Split Inverter Air Conditioner Heat Pump System with 15-ft Installation Kit Wall Bracket 115V
$799.98 Learn More -
Klimaire 24,000 BTU 20 SEER2 Wall Mounted Ductless Mini Split Inverter A/C Heat Pump System w/ 16’ Installation Kit & Wall Mounting Bracket 230V
$1,399.98 Learn More -
Koldfront WAC12003WCO 12000 BTU 115V Window Air Conditioner with Dehumidifier and Remote Control
$449.00 Learn More