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Best Window Air Conditioners: Reviews by Spec

The LG Dual Inverter ThinQ 14,000 BTU Window leads this guide for large rooms, with the Midea 14,000 BTU close behind for quieter operation. We compared window units from published specifications only, ranking by stated BTU cooling capacity and using maker room-size figures. No unit was handled or measured. The picks below cover 5,000 to 14,000 BTU window units across several brands. These window air conditioner reviews compare the figures makers publish.

Product data updated November 6, 2026

On this page
  1. Compare at a glance
  2. The picks
  3. How we picked
  4. Match BTU to your room size
  5. Noise and inverter compressors
  6. ENERGY STAR and efficiency
  7. Window fit and installation
  8. Controls and maintenance
  9. Questions people ask

Compare at a glance

ModelTypeRated coolingRoom sizeRated noiseENERGY STARBuy
LG Dual Inverter ThinQ 14,000 BTU WindowWindow14,000 BTUUp to 800 sq ftNot listedYesCheck price on Amazon
Midea MAW14S1VWT-AWindow14,000 BTUUp to 700 sq ftNot listedNot listedCheck price on Amazon
Frigidaire FHWW144TF1Window14,000 BTUUp to 700 sq ftNot listedNot listedCheck price on Amazon
Midea Air Conditioner HeatWindow12,000 BTUUp to 550 sq ftNot listedYesCheck price on Amazon
Midea U-Shaped Inverter 12,000 BTU WindowWindow12,000 BTUUp to 550 sq ftNot listedNot listedCheck price on Amazon
LG ThinQ Alexa 12,000 BTUWindow12,000 BTUUp to 550 sq ftNot listedYesCheck price on Amazon
Midea U-Shaped ACWindow10,000 BTUUp to 450 sq ftNot listedNot listedCheck price on Amazon
LG LW1022FVSM 10,000 BTUWindow10,000 BTUUp to 450 sq ftNot listedNot listedCheck price on Amazon
TCL BTU Window Air ConditionerWindow10,000 BTUUp to 450 sq ftNot listedNot listedCheck price on Amazon
Frigidaire BTUWindow8,000 BTUUp to 350 sq ftNot listedYesCheck price on Amazon
Frigidaire 6,000 BTU Window Eco ModeWindow6,000 BTUUp to 250 sq ftNot listedNot listedCheck price on Amazon
GE 5,000 BTU WindowWindow5,000 BTUUp to 150 sq ftNot listedNot listedCheck price on Amazon

Specs are the figures each maker lists. "Not listed" means we have no published figure yet.

The picks

No. 1Best for large living rooms

LG Dual Inverter ThinQ 14,000 BTU Window

Type
Window
Rated cooling
14,000 BTU
Room size
Up to 800 sq ft
Rated noise
Not listed
ENERGY STAR
Yes

Its larger stated room size and ENERGY STAR certification put it ahead of the Midea 14,000 BTU, which lists a lower 41 db noise figure, while the Frigidaire 14,000 BTU below does not state a room size.

Why it made the list

  • Stated 800 sq ft coverage
  • 44 db noise figure
  • ENERGY STAR certified
  • App, remote, touch and voice control

Trade-offs

  • Heavier at 85.1 pounds
  • 1260 watts listed
  • Heating not stated by the maker

Good fit if

  • Large living rooms or open areas up to 800 sq ft
  • Homes that want app and voice control

Skip if

  • You need a lighter unit for seasonal removal
  • You want the quietest 14,000 BTU option

Bottom line: A strong large-room pick with broad smart control.

Check price on Amazon
No. 2Quietest 14,000 BTU pick

Midea MAW14S1VWT-A

Type
Window
Rated cooling
14,000 BTU
Room size
Up to 700 sq ft
Rated noise
Not listed
ENERGY STAR
Not listed

The maker does not state ENERGY STAR certification, but it lists app, remote and voice control, and its 41 db noise figure is the lowest among the 14,000 BTU picks.

Why it made the list

  • 41 db noise figure
  • 700 sq ft coverage
  • App, remote and voice control

Trade-offs

  • ENERGY STAR not stated by the maker
  • Higher listed wattage at 1508 watts
  • Lower stated coverage than the LG

Good fit if

  • Bedrooms or living areas where noise matters
  • Rooms up to 700 sq ft

Skip if

  • You want ENERGY STAR certification
  • You want the largest stated room size at 14,000 BTU

Bottom line: The quietest large-capacity window unit among our picks.

Check price on Amazon
No. 3Simple large-room option

Frigidaire FHWW144TF1

Type
Window
Rated cooling
14,000 BTU
Room size
Up to 700 sq ft
Rated noise
Not listed
ENERGY STAR
Not listed

This 14,000 BTU unit has no stated room size, which makes sizing harder than the LG and Midea above. It is louder at 57 db, but it still offers remote control and WiFi for basic large-room cooling.

Why it made the list

  • 14,000 BTU capacity
  • Remote control
  • WiFi enabled
  • Dust filter and filter reminder

Trade-offs

  • Room size not stated by the maker
  • 57 db noise figure
  • Voice control not stated by the maker

Good fit if

  • Large rooms where smart extras are optional
  • Users who want WiFi and a filter reminder

Skip if

  • You need a stated room coverage figure
  • Noise is a priority

Bottom line: A straightforward large-capacity window unit with fewer stated extras.

Check price on Amazon
No. 4Heating and cooling 12,000 BTU pick

Midea Air Conditioner Heat

Type
Window
Rated cooling
12,000 BTU
Room size
Up to 550 sq ft
Rated noise
Not listed
ENERGY STAR
Yes

This 12,000 BTU unit covers 550 sq ft and carries ENERGY STAR certification. It is louder than the U-shaped Midea below at 45 db, but it includes heating and cooling function and app, remote, touch and voice control.

Why it made the list

  • ENERGY STAR certified
  • 550 sq ft coverage
  • Heating and cooling function
  • App, remote, touch and voice control

Trade-offs

  • 45 db noise figure
  • Inverter compressor not stated by the maker
  • Heavier at 58 pounds

Good fit if

  • Mid-size bedrooms up to 550 sq ft
  • Homes that want heating and cooling in one unit

Skip if

  • You want the quietest 12,000 BTU unit
  • You prefer a U-shaped design

Bottom line: A flexible mid-size pick with heating and broad controls.

Check price on Amazon
No. 5Quietest 12,000 BTU pick

Midea U-Shaped Inverter 12,000 BTU Window

Type
Window
Rated cooling
12,000 BTU
Room size
Up to 550 sq ft
Rated noise
Not listed
ENERGY STAR
Not listed

The maker does not state ENERGY STAR certification or heating, but its app, remote, touch and voice control and 32 db noise figure make it a strong bedroom choice.

Why it made the list

  • 32 db noise figure
  • 550 sq ft coverage
  • U-shaped design

Trade-offs

  • ENERGY STAR not stated by the maker
  • Heating not stated by the maker

Good fit if

  • Bedrooms where quiet operation matters
  • Rooms up to 550 sq ft

Skip if

  • You want ENERGY STAR certification
  • You need heating

Bottom line: The quietest mid-size window unit among our picks.

Check price on Amazon
No. 6Smart 12,000 BTU pick

LG ThinQ Alexa 12,000 BTU

Type
Window
Rated cooling
12,000 BTU
Room size
Up to 550 sq ft
Rated noise
Not listed
ENERGY STAR
Yes

This LG unit matches the Midea 12,000 BTU on 550 sq ft coverage and ENERGY STAR certification, and it lists WiFi, an inverter compressor and a filter reminder. Its 44 db noise figure is higher than the U-shaped Midea above, and its listing gives no wattage or weight.

Why it made the list

  • ENERGY STAR certified
  • 550 sq ft coverage
  • WiFi enabled
  • 44 db noise figure

Trade-offs

  • Wattage and weight not stated by the maker
  • Fewer detail specs than the Midea 12,000 BTU

Good fit if

  • Homes that want WiFi control
  • Mid-size rooms up to 550 sq ft

Skip if

  • You want the quietest 12,000 BTU option
  • You need heating

Bottom line: A smart mid-size pick with ENERGY STAR certification.

Check price on Amazon
No. 7Quiet 10,000 BTU pick

Midea U-Shaped AC

Type
Window
Rated cooling
10,000 BTU
Room size
Up to 450 sq ft
Rated noise
Not listed
ENERGY STAR
Not listed

This U-shaped 10,000 BTU unit shares the 32 db noise figure of its larger sibling and covers 450 sq ft, though the maker does not state ENERGY STAR certification.

Why it made the list

  • 32 db noise figure
  • 450 sq ft coverage
  • U-shaped design

Trade-offs

  • ENERGY STAR not stated by the maker
  • Heating not stated by the maker

Good fit if

  • Bedrooms up to 450 sq ft
  • Homes that want a quieter window unit

Skip if

  • You want ENERGY STAR certification
  • You need a standard window design

Bottom line: A quiet compact pick for small to mid-size rooms.

Check price on Amazon
No. 8Smart 10,000 BTU pick

LG LW1022FVSM 10,000 BTU

Type
Window
Rated cooling
10,000 BTU
Room size
Up to 450 sq ft
Rated noise
Not listed
ENERGY STAR
Not listed

This LG unit covers 450 sq ft and includes inverter compressor, WiFi and Alexa control. Its 44 db noise figure is higher than the Midea U-shaped unit above, but it adds a filter reminder and dehumidifier function.

Why it made the list

  • 450 sq ft coverage
  • 44 db noise figure
  • WiFi and Alexa control
  • Dehumidifier function

Trade-offs

  • Louder than the U-shaped Midea above
  • ENERGY STAR not stated by the maker

Good fit if

  • Smart homes up to 450 sq ft
  • Users who want filter reminders

Skip if

  • You want the quietest 10,000 BTU option
  • You prefer a U-shaped design

Bottom line: A capable smart 10,000 BTU unit with inverter operation.

Check price on Amazon
No. 9Simple 10,000 BTU pick

TCL BTU Window Air Conditioner

Type
Window
Rated cooling
10,000 BTU
Room size
Up to 450 sq ft
Rated noise
Not listed
ENERGY STAR
Not listed

This TCL unit covers 450 sq ft but is louder at 54 db than the LG above. It still offers app, remote and voice control plus WiFi, making it a basic mid-size option.

Why it made the list

  • 450 sq ft coverage
  • App, remote and voice control
  • WiFi enabled
  • Dehumidifier function

Trade-offs

  • 54 db noise figure
  • ENERGY STAR not stated by the maker

Good fit if

  • Mid-size rooms up to 450 sq ft
  • Users who want WiFi without premium features

Skip if

  • Noise is a priority
  • You want ENERGY STAR certification

Bottom line: A basic 10,000 BTU unit with smart control.

Check price on Amazon
No. 10Efficient 8,000 BTU pick

Frigidaire BTU

Type
Window
Rated cooling
8,000 BTU
Room size
Up to 350 sq ft
Rated noise
Not listed
ENERGY STAR
Yes

This 8,000 BTU inverter unit covers 350 sq ft and carries ENERGY STAR certification. Its 41 db noise figure is lower than the Frigidaire 6,000 BTU below, and it adds app control and WiFi.

Why it made the list

  • ENERGY STAR certified
  • 350 sq ft coverage
  • 41 db noise figure
  • Inverter compressor

Trade-offs

  • Voice control not stated by the maker
  • Heavier at 55 pounds

Good fit if

  • Small rooms up to 350 sq ft
  • Users who want an efficient inverter unit

Skip if

  • You need voice control
  • You want a lighter unit

Bottom line: An efficient small-room pick with quiet operation.

Check price on Amazon
No. 11Best 6,000 BTU pick

Frigidaire 6,000 BTU Window Eco Mode

Type
Window
Rated cooling
6,000 BTU
Room size
Up to 250 sq ft
Rated noise
Not listed
ENERGY STAR
Not listed

The maker does not state app or voice control, but this 6,000 BTU unit includes a dust filter and filter reminder. It is quieter at 51 db than the GE 5,000 BTU below, though it covers less room than the 8,000 BTU pick above.

Why it made the list

  • 250 sq ft coverage
  • 51 db noise figure
  • Dust filter and filter reminder
  • Remote control

Trade-offs

  • App or voice control not stated
  • ENERGY STAR not stated by the maker

Good fit if

  • Small bedrooms up to 250 sq ft
  • Users who want a simple remote-controlled unit

Skip if

  • You want app or voice control
  • You need a larger room covered

Bottom line: A straightforward small-room window unit.

Check price on Amazon
No. 12Compact 5,000 BTU pick

GE 5,000 BTU Window

Type
Window
Rated cooling
5,000 BTU
Room size
Up to 150 sq ft
Rated noise
Not listed
ENERGY STAR
Not listed

The smallest pick here, this GE unit covers 150 sq ft and uses a washable filter. It is louder at 56 db and lists push button controls, but it is the lightest option at 36.5 pounds.

Why it made the list

  • 150 sq ft coverage
  • Washable filter
  • 36.5 pounds
  • Push button controls

Trade-offs

  • 56 db noise figure
  • Remote control not stated by the maker
  • App control not stated by the maker

Good fit if

  • Very small rooms up to 150 sq ft
  • Users who want a simple, light unit

Skip if

  • You need remote or smart control
  • Noise is a priority

Bottom line: A compact no-frills unit for small spaces.

Check price on Amazon

How we picked

We compared window air conditioners from the catalog using the stated BTU cooling capacity as the primary ranking. No unit was handled or measured; every point below comes from maker specifications and support pages. When two models share a BTU figure, we looked at stated noise, room coverage, and other stated specifications to order them. We also considered ENERGY STAR certification and control options where the maker lists them.

Match BTU to your room size

Use the maker's stated room coverage in sq ft rather than guessing. A 5,000 BTU unit is often listed for about 150 sq ft, while a 14,000 BTU unit may cover up to 800 sq ft. Measure the room and compare it with the listing before choosing.

For more detail on how BTU relates to room size, see Choosing the Right BTU for Your Room Size.

Noise and inverter compressors

Stated noise figures in our picks range from 32 db to 57 db. Lower figures are quieter, and U-shaped designs often place the compressor outside the room for less indoor noise.

Inverter compressors can vary speed instead of cycling fully on and off, which may reduce temperature swings and noise. Learn more in Inverter vs Fixed-Speed Room Air Conditioners and Window AC Noise: What You Hear Indoors and Outdoors.

ENERGY STAR and efficiency

ENERGY STAR certified units meet federal efficiency criteria and often include better sealing materials. Not every pick here is certified, so check the listing if efficiency is a priority.

Several listings here give an efficiency figure labeled SEER, while the federal efficiency figure for room air conditioners is the combined energy efficiency ratio (CEER), so compare CEER where a maker lists it.

Window fit and installation

Standard window units sit on the sill and block part of the view. U-shaped units sit over the sill and let the window close further, which can reduce indoor noise and preserve more of the view.

LG's window AC manuals, for example, say their units are designed for standard double-hung windows. Check your window type before buying. See Standard vs U-Shaped Window Air Conditioners and Which Window Types Take a Window Air Conditioner. The owner's manual gives the exact requirements for your model.

Controls and maintenance

Many picks offer app, remote, touch or voice control. Filter reminders can help you remember to clean the filter, which LG's window AC manuals say to clean every two weeks.

For filter care, see How to Clean a Room Air Conditioner Filter.

Related: Best Portable Air Conditioners: Portable AC Reviews · Best Window Air Conditioner for Bedroom: Quiet AC Reviews · Best Air Conditioner for Small Room: Small Room AC Reviews · Best Air Conditioner for Large Room: Large Room AC Reviews

Questions people ask

How do you choose the right window air conditioner size?

Use the maker's stated room coverage in sq ft. A 5,000 BTU unit is often listed for about 150 sq ft, 8,000 BTU for 350 sq ft, 12,000 BTU for 550 sq ft, and 14,000 BTU for 700 to 800 sq ft. Measure the room and compare with the listing. See the Window AC Buying Checklist for more.

Are higher BTU window units always better?

No. A unit that is too large can cool the room before removing enough humidity, leaving the air damp. Match the BTU figure to the room size.

What is the difference between standard and U-shaped window units?

U-shaped units sit over the sill and let the window close further, often placing the compressor outside the room for lower indoor noise. Standard units sit on the sill and block more of the view.

Do you need an ENERGY STAR window air conditioner?

ENERGY STAR certified units meet federal efficiency criteria and often include better sealing materials, but not every pick here is certified. Check the listing if efficiency matters.

How loud are window air conditioners?

Stated noise figures in our picks range from 32 db to 57 db. Lower figures are quieter. ENERGY STAR notes that U-shaped units keep the noise-producing compressor outside the room.

Sources

Last updated November 6, 2026