Indoor air conditioning is 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?
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 49–76 of 76 results
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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
$223.76 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 -
SereneLife SLPAC10 SLPAC 3-in-1 Portable Air Conditioner with Built-in Dehumidifier Function,Fan Mode, Remote Control, Complete Window Mount Exhaust Kit, 10,000 BTU, White
$369.99 Learn More -
Frigidaire FFRE123WAE Window Air Conditioner, 12,000 BTU, White
$389.99 Learn More -
Frigidaire FFRE083WA1 Window-Mounted Room Air Conditioner, 8,000 BTU, White
$265.00 Learn More -
Frigidaire FFRE1533U1, White Air Conditioner
$749.00 Learn More -
Frigidaire 12000 Btu Cool Connect Smart Window Air Conditioner w/Wifi Control
$452.72 Learn More -
GE Profile Ultra Quiet Window Air Conditioner 8,200 BTU, WiFi Enabled, Ideal for Medium Rooms, Easy Installation with Included Kit, 8K Window AC Unit, White
$439.00 Learn More -
12,000 BTU – ENERGY STAR – 230 volt/208 volt – 10.9 EER Kuhl+ Series Room Air Conditioner with Reverse Cycle Heat Pump
$1,854.98 Learn More -
WCT16A30A 27″ WallMaster Smart Thru-the-Wall Air Conditioner with 15400 Cooling BTU Capacity 230 Volts 3 Cooling Fan Speed Built-In Timer in White
$1,249.00 Learn More -
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
$189.00 Learn More -
Amana 10,000 BTU 115V Digital Window-Mounted Air Conditioner and Dehumidifier with Remote Control for Small-Medium Rooms up to 450 Sq.Ft, AC Window Unit for Living Room, Bedroom with Fan Only Mode
$501.55 Learn More -
GE AHV05LZ Window Air Conditioner with 5050 BTU Cooling Capacity, 115 Volts in White
$209.99 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
$544.22 Learn More -
LG 10,000 BTU Window Air Conditioner, Cools 450 Sq.Ft. (18′ x 25′ Room Size), Quiet Operation, Electronic Control with Remote, 3 Cooling & Fan Speeds, Auto Restart, 115V
$379.99 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 -
Frigidaire FFRE063WAE Window Air Conditioner With Washable filter, remote, 6,000 BTU, White
$259.00 Learn More -
Friedrich ES12N33B 12,000 BTU – 230 volt/208 Volt – 11.3 EER Kuhl+ Series Room Air Conditioner with Electric Heat
$1,989.83 Learn More -
Friedrich WCT12A30A 27 WallMaster Smart Thru-the-Wall Air Conditioner with 12000 Cooling BTU Capacity 230 Volts 3 Cooling Fan Speed Built-In Timer Create Customizable 7-day Schedules Check Filter Reminder Auto Restart Electronic Defrost Control
$1,199.00 Learn More -
BLACK+DECKER 10,000 BTU Portable Air Conditioner up to 450 Sq. ft. with Remote Control, White
$434.99 Learn More -
TECCPO Portable Air Conditioner TAK04C, 8000 BTU Portable AC for Rooms up to 200 Sq.Ft, 3-in-1 with Remote Control
$299.97 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 FFRE103WAE Window Air Conditioner, 10,000 BTU, White
$726.33 Learn More -
LG 6,000 BTU Window Conditioner, 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 -
Midea 10,000 BTU EasyCool Window Air Conditioner, Dehumidifier and Fan – Cool, Circulate and Dehumidify up to 450 Sq. Ft., Reusable Filter, Remote Control
$379.00 Learn More -
Koldfront WAC12003WCO 12000 BTU 115V Window Air Conditioner with Dehumidifier and Remote Control
$449.00 Learn More -
11,900 BTU – ENERGY STAR – 115 volt – 12.2 EER Kuhl Series Room Air Conditioner
$1,813.07 Learn More -
Friedrich WallMaster Wall AC w/Elec. Heat, 12000 BTU Cool, 11000 BTU Heat, 230V, WET12A33A
$1,672.33 Learn More