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10 Best Wall AC Units 2025 in the United States
#1
Winner
LG 7,800 BTU Through the Wall Air Conditioner, 115V, AC Wall Unit for Rooms up to 330 Sq. Ft., Perfect for Bedroom or Office, Wall Mounted AC Unit with Remote and 3 Cool & Fan Speeds, White
The LG 7,800 BTU through-the-wall air conditioner is designed for cooling medium-sized rooms up to about 330 square feet, making it a solid choice for bedrooms or small offices. Its cooling power matches this room size well, offering sufficient comfort without being over or underpowered. One of its strengths is the energy efficiency, with an Energy Efficiency Ratio (EER) of 10.7, thanks to the modern R-32 refrigerant. This means it uses power reasonably well, although it is not Energy Star certified, so there may be more efficient options if energy savings are your top priority. Noise level sits at 56 decibels, which is moderate—not too loud but noticeable, especially in quiet environments like bedrooms.
Rating
10.0
Chosen by1,490
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER)
Noise Level
Most important from
369 reviews
#2
Keystone 14,000 BTU Wall Mounted Air Conditioner with Supplemental Heat and Dehumidifier Function, 230V, Wall AC for Living Room and Large Rooms up to 700 Sq.Ft., Quiet, High Efficiency AC with Remote
The Keystone 14,000 BTU Wall Mounted Air Conditioner is designed to efficiently cool and heat large spaces up to 700 square feet. This dual-function unit offers 14,000 BTUs of cooling power and 10,600 BTUs of supplemental heating, making it suitable for year-round use. It also features a dehumidifier and fan circulation, providing a comprehensive climate control solution. One of its advantages is the space-saving design, which allows for easy wall installation and keeps windows and floors clear.
Rating
10.0
Energy Efficiency Ratio (EER)
Noise Level
Installation and Maintenance
Most important from
21 reviews
#3
Keystone 12,000 BTU Wall Mounted AC Unit and Dehumidifier, 230V, Wall Unit for Bedroom, Bathroom, Nursery, and Medium Sized Rooms up to 550 Sq.Ft., AC Wall Unit with Remote, Quiet, High Efficiency AC
The Keystone 12,000 BTU Wall Mounted AC Unit is designed to cool medium-sized rooms up to about 550 square feet, making it a solid choice for bedrooms, bathrooms, or small living spaces. With a respectable cooling capacity of 12,000 BTU, it can efficiently lower the temperature in these areas. The unit has a Seasonal Energy Efficiency Ratio (SEER) of 10.5, which is decent for balancing performance with electricity costs, and includes energy-saving modes like 'Energy Saver' and 'Sleep' to help reduce power usage further. Noise level is moderate at 56.5 dB, which means it’s noticeable but generally not disruptive for everyday use or sleep in a bedroom.
Rating
9.8
Cooling Capacity (BTU)
Energy Efficiency Ratio (EER)
Noise Level
Most important from
16 reviews
Top 10 Best Wall AC Units 2025 in the United States
#1
Winner
LG 7,800 BTU Through the Wall Air Conditioner, 115V, AC Wall Unit for Rooms up to 330 Sq. Ft., Perfect for Bedroom or Office, Wall Mounted AC Unit with Remote and 3 Cool & Fan Speeds, White
LG 7,800 BTU Through the Wall Air Conditioner, 115V, AC Wall Unit for Rooms up to 330 Sq. Ft., Perfect for Bedroom or Office, Wall Mounted AC Unit with Remote and 3 Cool & Fan Speeds, White
Cooling Capacity (BTU): 7,800 BTU
Energy Efficiency Ratio (EER): 10.7
Noise Level: 56 dB
Installation and Maintenance: Wall setup; trim kit; washable filter
Additional Features: Remote, Filter Light, Dehumidifier, Saver
Chosen by 1490 this week
Keystone 14,000 BTU Wall Mounted Air Conditioner with Supplemental Heat and Dehumidifier Function, 230V, Wall AC for Living Room and Large Rooms up to 700 Sq.Ft., Quiet, High Efficiency AC with Remote
Keystone 14,000 BTU Wall Mounted Air Conditioner with Supplemental Heat and Dehumidifier Function, 230V, Wall AC for Living Room and Large Rooms up to 700 Sq.Ft., Quiet, High Efficiency AC with Remote
Cooling Capacity (BTU): 14000
Noise Level: 61.5 dB
Installation and Maintenance: Requires 230V outlet, includes trim kit
Additional Features: Remote, Filter Light, Heating, Fast Cooling, Dehumidifier
Keystone 12,000 BTU Wall Mounted AC Unit and Dehumidifier, 230V, Wall Unit for Bedroom, Bathroom, Nursery, and Medium Sized Rooms up to 550 Sq.Ft., AC Wall Unit with Remote, Quiet, High Efficiency AC
Keystone 12,000 BTU Wall Mounted AC Unit and Dehumidifier, 230V, Wall Unit for Bedroom, Bathroom, Nursery, and Medium Sized Rooms up to 550 Sq.Ft., AC Wall Unit with Remote, Quiet, High Efficiency AC
Cooling Capacity (BTU): 12000 British Thermal Units
Noise Level: 56.5 dB
Installation and Maintenance: Wall install, includes remote, filter, kit
Additional Features: Remote, 3 modes, 4-way louvers, dehumidifies
TCL H12T9XH 12,000 Smart Through-The-Wall Air Conditioner, AC Heater Unit with Fan & Dehumidifier, 550 Sq. Ft, Remote Control, Works with Alexa/Google Assistant, 12000 BTU, White
TCL H12T9XH 12,000 Smart Through-The-Wall Air Conditioner, AC Heater Unit with Fan & Dehumidifier, 550 Sq. Ft, Remote Control, Works with Alexa/Google Assistant, 12000 BTU, White
Cooling Capacity (BTU): 12000 British Thermal Units
Noise Level: 50 dB
Installation and Maintenance: Needs wall sleeve; 1.6 pints dehumidifier
Additional Features: Heating, Cooling, WiFi, LED, Sleep, Alexa
Keystone 12,000 BTU Through the Wall Air Conditioner and Dehumidifier, 230V, Quiet Through the Wall AC Unit for Medium Sized Rooms up to 550 Sq.Ft., Perfect for Bedroom, Bathroom, Nursery, with Remote
Keystone 12,000 BTU Through the Wall Air Conditioner and Dehumidifier, 230V, Quiet Through the Wall AC Unit for Medium Sized Rooms up to 550 Sq.Ft., Perfect for Bedroom, Bathroom, Nursery, with Remote
Cooling Capacity (BTU): 12000 British Thermal Units
Noise Level: 56.5 dB
Installation and Maintenance: Wall-Mounted, universal trim kit
Additional Features: Remote, Filter Light, Dehumidifier
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Keystone 8,000 BTU Wall Mounted Air Conditioner with Supplemental Heat and Dehumidifier Function, 115V, Wall AC for Small-Medium Sized Rooms up to 350 Sq.Ft. with Remote, Quiet, High Efficiency AC
Keystone 8,000 BTU Wall Mounted Air Conditioner with Supplemental Heat and Dehumidifier Function, 115V, Wall AC for Small-Medium Sized Rooms up to 350 Sq.Ft. with Remote, Quiet, High Efficiency AC
Cooling Capacity (BTU): 8000 British Thermal Units
Noise Level: 57 dB
Installation and Maintenance: Wall mount kit; filter reminder
Additional Features: Remote control; filter light; heating
AMANA PTAC 15,000 BTU Air Conditioner PTC153K35AXXX with 3.5 kW Heater 20 Amp Plug, White
AMANA PTAC 15,000 BTU Air Conditioner PTC153K35AXXX with 3.5 kW Heater 20 Amp Plug, White
Cooling Capacity (BTU): 14800 British Thermal Units
Energy Efficiency Ratio (EER): 14.0
Installation and Maintenance: Wall installation; pro installation recommended
Additional Features: Universal size, anti corrosion, Wi-Fi option
AMANA PTAC 12,000 BTU Air Conditioner PTC123K35AXXX with 3.5 kW Heater 20 Amp Plug, White
AMANA PTAC 12,000 BTU Air Conditioner PTC123K35AXXX with 3.5 kW Heater 20 Amp Plug, White
Cooling Capacity (BTU): 12000
Energy Efficiency Ratio (EER): 14.0
Installation and Maintenance: Requires PTAC sleeve, rear grille, thermostat
Additional Features: Auto restart, defrost, remote, Bluetooth, app
Cooper & Hunter 15,000 BTU PTAC Packaged Terminal Air Conditioner & Heat Pump – Built-In 3.5kW Electric Heater – Includes Wireless Smart Kit, Remote & Power Cord – R-32 Refrigerant
Cooper & Hunter 15,000 BTU PTAC Packaged Terminal Air Conditioner & Heat Pump – Built-In 3.5kW Electric Heater – Includes Wireless Smart Kit, Remote & Power Cord – R-32 Refrigerant
Cooling Capacity (BTU): 14,700/14,500 BTU/h
Noise Level: 52.5 dB
Airflow (CFM): 1.25 tons
Installation and Maintenance: Requires wall sleeve, grille not included
Additional Features: Remote, WiFi, Heating, Cooling, Smart Kit
#10
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Buying Guide for the Best Wall AC Units
When choosing a wall-mounted air conditioning unit, it's important to consider several key specifications to ensure you select the best fit for your needs. Wall AC units are a great option for cooling specific rooms or areas in your home or office. By understanding the key specs, you can make an informed decision that balances performance, efficiency, and comfort.Cooling Capacity (BTU)Cooling capacity, measured in British Thermal Units (BTU), indicates how much heat an air conditioner can remove from a room per hour. This spec is crucial because it determines the unit's ability to cool a specific area. Units with lower BTU ratings (5,000-8,000 BTU) are suitable for small rooms up to 300 square feet, while medium-sized rooms (300-500 square feet) require units with 8,000-12,000 BTU. Larger rooms (500-800 square feet) need units with 12,000-18,000 BTU. To pick the right one, consider the size of the room you want to cool and choose a unit with an appropriate BTU rating to ensure efficient cooling.
Energy Efficiency Ratio (EER)The Energy Efficiency Ratio (EER) measures the efficiency of an air conditioner by comparing its cooling capacity to its power consumption. A higher EER indicates a more efficient unit, which can save you money on energy bills. EER values typically range from 8 to 12. Units with an EER of 10 or higher are considered highly efficient. To choose the right EER for you, consider how often you'll use the unit and your desire to minimize energy costs. If you plan to use the AC frequently, investing in a higher EER unit can be beneficial in the long run.
Noise LevelNoise level, measured in decibels (dB), indicates how loud the air conditioner will be during operation. This spec is important for maintaining a comfortable and quiet environment, especially in bedrooms or living areas. Noise levels for wall AC units typically range from 40 to 60 dB. Units with noise levels below 50 dB are considered quiet and are ideal for bedrooms or offices. If noise is a concern for you, look for units with lower dB ratings to ensure a peaceful environment.
Airflow (CFM)Airflow, measured in cubic feet per minute (CFM), indicates how much air the unit can circulate in a given time. This spec is important for ensuring even cooling throughout the room. Higher CFM values mean better air circulation. Small rooms may require units with 200-300 CFM, while larger rooms may need 400-600 CFM. To pick the right airflow, consider the size of the room and how quickly you want the air to be circulated. Higher CFM units are better for larger rooms or spaces with poor air circulation.
Installation and MaintenanceInstallation and maintenance refer to the ease of setting up the unit and keeping it in good working condition. This spec is important for ensuring that the unit operates efficiently and has a long lifespan. Some units come with easy-to-install kits and washable filters, making maintenance simpler. To choose the right unit, consider your ability to install and maintain the unit yourself or if you will need professional help. Units with user-friendly installation and maintenance features can save you time and effort.
Additional FeaturesAdditional features can enhance the functionality and convenience of the air conditioner. These may include remote controls, programmable timers, sleep modes, and smart connectivity. These features are important for customizing your cooling experience and improving comfort. To pick the right unit, consider which additional features are important to you. For example, if you want to control the unit remotely, look for models with smart connectivity. If you prefer to set the unit to turn on or off at specific times, a programmable timer would be beneficial.