10 Best 18000 btu wall unit air conditioners of 2025

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Best Choice

1

Keystone
Keystone 18,800 BTU Window-Wall Air Conditioner with 16,000 BTU Supplemental Heating, 230V, Window and Wall AC Unit for Living Room, Apartment, Large Rooms up to 1000 Sq.Ft.
Main highlights

Powerful Cooling and Heating
18,000 BTU cooling and 16,000 BTU heating for year-round comfort.

Ideal for Large Spaces
Perfect for rooms up to 1,000 Sq.Ft. with versatile installation.

Praised Cooling Efficiency
Customers appreciate its effective cooling performance and quiet operation.
Key specs
- floor area:1000 Square Feet
- installation:Window installation kit included
- noise:55 dB
- special features:Smart Remote, Energy Saver
- voltage:230 Volts
9.8

Exceptional

Our Rating

8.0
Remote Control

8.0
Efficient Energy Use

8.0
Easy installation
How do we rank?

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Value for Money

2

Whirlpool
Whirlpool 18,000 BTU 230V Window Air Conditioner with Supplemental Heat, Window Mounted AC Unit with Heater for Apartment, Living Room, Bedroom, Large Rooms up to 1000 Square Feet
Main highlights

Exceptional Cooling and Heating
18,000 BTU cooling and 10,600 BTU supplemental heating for year-round comfort in spaces up to 1000 sq. ft.

Ideal for Large Rooms
Perfect for apartments, living rooms, and bedrooms up to 1000 square feet.

Ease of Use Praised
Customers love the intuitive electronic control panel and remote control for effortless operation.
Key specs
- floor area:1000 Feet
- installation:Window mounting kit
- noise:56 dB
- special features:Electronic control panel
- voltage:230 Volts
9.6

Exceptional

Our Rating
3

BLACK+DECKER

BLACK+DECKER Window or Through The Wall Air Conditioner 18000 BTU, AC Window Unit Cools Up to 1000 Square Feet, Window AC Unit with Remote Control, 3 Cooling Speeds and Fan Only, BD18WT6, White
9.4

Excellent

Our Rating
4

LG
LG 18,000 BTU DUAL Inverter Smart Window Air Conditioner, 230V, Cools 1,000 Sq. Ft. for Bedroom, Living Room, Apartment, Ultra Quiet Operation, ENERGY STAR®, with LG ThinQ, Amazon Alexa & Hey Google
Main highlights

Key Features
Control via LG ThinQ, Google Assistant, Amazon Alexa; low noise at 52dB; energy-efficient Energy Star certification; multiple cooling/fan speeds.

Ideal Use Cases
Perfect for large rooms or offices up to 1000 sq ft, offering customizable cooling and energy savings for a comfortable environment.

Customer Praise
Users highly appreciate the convenience of smartphone control, noting significant improvements in comfort and energy expenditure.
Key specs
- floor area:1000 Square Feet
- installation:Window
- noise:44 dB
- special features:Smart Phone Control
- voltage:230 Volts
9.3

Excellent

Our Rating

9.1
worth the money

9.1
Efficient Energy Use

9.1
Remote Control
5

LG
LG 14,000 BTU Through the Wall Air Conditioner, 230/208V, Cools 700 Sq.Ft. for Bedroom, Living Room, Apartment, Electronic Control with Remote, White

19% Off
Main highlights

Key Features
Customizable cooling with 3 speeds, digital control panel, remote access, 4-way air deflection, washable filter, and energy-saving 24-hour timer.

Ideal Use Cases
Perfect for medium-sized rooms up to 750 sq ft like kitchens, living rooms, bedrooms, or offices, offering efficient cooling and energy savings.

Customer Praise
Users highly appreciate the Auto Restart feature for its convenience during power outages, ensuring continuous comfort without manual intervention.
9.2

Excellent

Our Rating

8.0
Remote Control

8.0
Simple to use

8.0
Easy installation
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6

LG
LG 18,000 BTU Window Air Conditioner with Heat, 230/208V, Cools 1,000 Sq.Ft. for Bedroom, Living Room, Basement, Apartment, with Remote, 2 Speeds, 24-Hour Timer, White

12% Off
Main highlights

Efficient Cooling and Heating
The LG LW1823HR offers 18,000 BTU power for efficient cooling and heating, suitable for rooms up to 1,000 sq. ft.

Versatile Use Cases
Ideal for bedrooms, living rooms, basements, and apartments needing both heating and cooling.

Praised Quiet Heat Mode
Customers appreciate the quiet operation when using the heating function.
Key specs
- floor area:1000 Square Feet
- installation:installation kit included
- noise:61 dB
- special features:Cooling, Heating, Dehumidifying
- voltage:230 Volts
9.1

Excellent

Our Rating

8.4
Easy installation

8.4
Remote Control

8.0
worth the money
7

COSTWAY
COSTWAY 18000BTU Mini Split Air Conditioner& Heater, 19 SEER2 208-230V Wall-Mounted Ductless AC Unit Cools Rooms up to 1250 Sq. Ft, Energy Efficient Inverter AC w/Heat Pump (Blast Series)
Main highlights

Energy Efficient Cooling & Heating
Equipped with a high power compressor and 1.5 ton heat pump, this AHRI Certified pre-charged AC unit reduces power consumption and prolongs equipment life.

Ideal Use Cases for Year-Round Comfort
Perfect for cooling in summer and warming in winter, suitable for various spaces like bedrooms, garages, and living rooms up to 750 sq. ft.

Praised Feature: Quiet Operation
Customers consistently praise the unit's quiet operation, both for the indoor and outdoor units, making it ideal for maintaining a peaceful environment.
Key specs
- wattage:1200 watts
- color:White
- noise:56 dB
- special features:Energy Efficient, Auto Clean
- voltage:208 Volts AC
8.9

Very Good

Our Rating

9.7
Efficient Energy Use

9.3
Noise level

8.2
Easy installation
8

Midea

Midea 18,000 BTU Smart Inverter Window Air Conditioner with APP, Alexa Control, 208/230V AC Unit Cools up to 1,000 Sq. Ft, Quiet Operation, Energy Saving, Remote & Easy Installation Kit, White
8.8

Very Good

Our Rating
9

Frigidaire

Frigidaire 18,000 BTU Smart Window Air Conditioner with Wi-Fi, Cools Up to 1,020 Sq. Ft., Remote Control, Quiet Operation, Eco Mode, 3 Fan Speeds, White

13% Off
8.5

Good

Our Rating
10

Manastin

Manastin 18000BTU Mini Split Air Conditioner & Heater with Inverter, 19 SEER2 𝟐𝟑𝟎𝐕 Energy Saving AC Unit Cools Rooms up to 1250 Sq. Ft, Complete Installation Kit
8.4

Good

Our Rating

10 Best 18000 btu wall unit air conditioners of 2025

1

Keystone 18,800 BTU Window-Wall Air Conditioner with 16,000 BTU Supplemental Heating, 230V, Window and Wall AC Unit for Living Room, Apartment, Large Rooms up to 1000 Sq.Ft.

8.0

8.0

8.0

How do we rank?

How do we rank?

Analyzing top stores

2

Whirlpool 18,000 BTU 230V Window Air Conditioner with Supplemental Heat, Window Mounted AC Unit with Heater for Apartment, Living Room, Bedroom, Large Rooms up to 1000 Square Feet

3

BLACK+DECKER Window or Through The Wall Air Conditioner 18000 BTU, AC Window Unit Cools Up to 1000 Square Feet, Window AC Unit with Remote Control, 3 Cooling Speeds and Fan Only, BD18WT6, White

4

LG 18,000 BTU DUAL Inverter Smart Window Air Conditioner, 230V, Cools 1,000 Sq. Ft. for Bedroom, Living Room, Apartment, Ultra Quiet Operation, ENERGY STAR®, with LG ThinQ, Amazon Alexa & Hey Google

9.1

9.1

9.1

5

LG 14,000 BTU Through the Wall Air Conditioner, 230/208V, Cools 700 Sq.Ft. for Bedroom, Living Room, Apartment, Electronic Control with Remote, White

8.0

8.0

8.0

6

LG 18,000 BTU Window Air Conditioner with Heat, 230/208V, Cools 1,000 Sq.Ft. for Bedroom, Living Room, Basement, Apartment, with Remote, 2 Speeds, 24-Hour Timer, White

8.4

8.4

8.0

7

COSTWAY 18000BTU Mini Split Air Conditioner& Heater, 19 SEER2 208-230V Wall-Mounted Ductless AC Unit Cools Rooms up to 1250 Sq. Ft, Energy Efficient Inverter AC w/Heat Pump (Blast Series)

9.7

9.3

8.2

8

Midea 18,000 BTU Smart Inverter Window Air Conditioner with APP, Alexa Control, 208/230V AC Unit Cools up to 1,000 Sq. Ft, Quiet Operation, Energy Saving, Remote & Easy Installation Kit, White

9

Frigidaire 18,000 BTU Smart Window Air Conditioner with Wi-Fi, Cools Up to 1,020 Sq. Ft., Remote Control, Quiet Operation, Eco Mode, 3 Fan Speeds, White

10

Manastin 18000BTU Mini Split Air Conditioner & Heater with Inverter, 19 SEER2 𝟐𝟑𝟎𝐕 Energy Saving AC Unit Cools Rooms up to 1250 Sq. Ft, Complete Installation Kit

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