What is the largest window air conditioner unit?

Windows-mounted air conditioning systems may be handy for cooling space in most conditions. The diversity of models is vast, from the small to the silent model. The windows typically have an output of between 65,000 and 25,000 BTUs. Larger-sized units can go as high as 110,000–225,000 BTUs. The most typical 110-115 voltage systems may offer 12,000 BTUs. Anything more than 1000 BTU will need an electrical power supply that most rooms will not need. 220-240 volts are frequently used for clothes dryers, electric cooking systems, and water heating systems.

How to pick an Air Conditioner?

Find the optimum cooling capacity for your room size.

Area To Be Cooled (square feet)Capacity Needed (BTUs per hour)
100 up to 1505,000
150 up to 2506,000
250 up to 3007,000
300 up to 3508,000

Ceiling Height: The preceding calculations assume you have typical 8-foot ceilings. If your ceiling measures higher than 8 feet, you’ll want to boost your BTU level. To establish the most accurate BTU estimate, you should additionally consider these factors:

Sunlight: Increase your BTUs by 10% if your room or environment is sunny during the day.

Reduce your BTUs by 10% if your room is shaded for the majority of the day.

If more than two people regularly occupy your room or space, you should add 600 BTUs of cooling power for each person.

Kitchen: If you install your window AC in a kitchen, boost the BTU level by 4,000.

What size window air conditioner do I 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). As a rule of thumb, an air conditioner uses 20 Btu for each square foot of living space.

The 4 biggest window air conditioners for large rooms (24,000+ BTU)

Window Air Conditioner 25000 With Heater: KEYSTONE Window Wall Mounted Air Conditioner

About this item

  • Quick to Chill: The 25,000 BTU air conditioner for window-mounted installation is everything you need to efficiently cool your apartment, bedroom, living room, or any setting!
  • Cools a space up to 1,500 sq. ft. with dehumidification up to 5.7 pints per hour.
  • Say goodbye to uneven room temperatures with a thermostat embedded in the remote control. The remote makes it easier to control the unit from anywhere in the room, and its inbuilt thermostat signals the AC to cool the space based on where you are.
  • Cooling that is Energy Star rated: Energy Star efficiency saves you money on your power bill (12.1 EER) (12.1 EER).
  • A special 230-volt/20-amp electrical outlet is required (the unit will not work with a standard 115V outlet).

For Big Rooms: Top-Rated 24,500 BTU Window Air Conditioner Window-Mounted LG 24,500 BTU 230V Air Conditioner

About this item

  • ENERGY STAR CERTIFIED: This air conditioner has met the high standards of the ENERGY STAR Program, employing energy-efficient technologies that translate into electricity savings.
  • Multiple fan speeds and 3 cooling and fan speeds with Auto Cool allow you to tailor your cooling.
  • Maximum Usability-Easy to use electronic controls with remote
  • After a power failure, Auto Restart will automatically turn the unit back on when power is restored. s• COOLS ROOMS UP TO 1,560 SQ. FT.-LW2516ER is perfect for chilling medium rooms (39′ X 40′).

The Emerson Quiet Kool EATC14RSD2T, Smart Through-The-Wall Air Conditioner with Remote, Wi-Fi, and Voice Control, is the most significant window air conditioner globally, with 14,000 BTU.

This item’s specifications

  • This wi-fi enabled, smart wall air conditioner integrates simply with both Amazon Alexa and Google Home by activating Smart Life in the Home Control section. These voice commands are supplemented by wi-fi controls available through the HE Smart app on your smartphone or tablet.
  • Your Emerson Quiet Kool wi-fi enabled air conditioner comes with an industry-exclusive 1-2-5 warranty that covers labor for one year, components for two years, and the compressor for five years. Buy and use with confidence.
  • Quiet Cooling for Medium to Large Rooms: Thanks to its Energy Star rating, this 14,000 BTU through-the-wall air conditioner effectively cools up to 700 sq. ft. while saving you money. This device is one of the quietest in the business, at 57 decibels, making it suitable for family rooms and medium-to-large spaces. (This product cannot be used to install Windows.)
  • This 5.9-foot power cord with an LCDI NEMA 6-15P plug requires a 230-volt/20-amp outlet and cannot be plugged into a conventional 115-volt outlet.
  • Split air exhaust vents: By using two air exhaust vents (rather than one) and three fan speeds, you can direct the flow of cool air in eight different directions.
  • 1490.0 watts of power.

The Biggest 12000 BTU Window Air Conditioner For Large Rooms: Amana AMAP121BW Window-Mounted Air Conditioner

About this item

  • s• 3 cooling speeds plus Auto option for cooling flexibility s• 5.9-ft. LCD power cord with 3-prong grounded connector uses 115V electrical outlet s• Cools up to 550 sq. ft. with up to 2.64 pints per hour of dehumidification
  • On-board electronic control panel with digital display

The Biggest Window Air Conditioner With 10,000 BTU: GE Smart Air Conditioner for Windows

About this item

  • Cools Medium Rooms: Provides 10,000 BTU cooling capacity for medium rooms up to 450 square feet s• CONNECTED PEACE OF MIND: Integration with the SmartHQ app allows you to monitor, schedule, and control your smart air conditioner from anywhere, while compatibility with your favorite devices, such as Amazon Alexa and Google Assistant, makes everyday tasks more accessible than ever before.• MAXIMUM COMFORT COOL– Select from 3 cooling and 3 fan speeds for energy-efficient cooling. • EASY INSTALLATION-This AC has a fixed chassis and installs easily in a double-hung window with the included EZ Mount installation kit.
  • ENERGY SAVER MODE: When the room is cool enough, Energy Saver Mode automatically turns off the fan and compressor, saving you money on utilities.