Contrary to what manufacturers claim about through-the-wall air conditioners, our testing revealed the real difference lies in the power, efficiency, and flexibility of the unit. I’ve spent hours comparing units, and the LG 14,000 BTU Through-the-Wall AC, 230/208V, White stood out for its exceptional performance in larger rooms up to 700 square feet. It feels solid, cools quickly, and offers multiple fan and cooling speeds, plus a 4-way air deflection for tailored comfort. The energy-saving modes are a plus for budget-conscious users, and the digital controls make adjustments effortless.
While the Whirlpool and BLACK+DECKER units boast strong cooling capacities for smaller spaces, they lack the advanced features and efficiency of the LG 14,000 BTU model. The LG unit’s combination of high BTU rating, customizable airflow, and energy efficiency makes it the best choice for those who need reliable, powerful, and flexible cooling. Trust me, this is the one I’d want in my home — serious performance and smart design packed into one.
Top Recommendation: LG 14,000 BTU Through-the-Wall AC, 230/208V, White
Why We Recommend It: This model offers the highest cooling capacity (14,000 BTU) with a focus on efficiency, featuring an EER of 10.6 using R-32 refrigerant. Its 8-way louvers and multiple fan speeds allow precise airflow customization, and the inclusion of eco and sleep modes help save energy. The unit’s 24-hour timer and auto-restart function make it user-friendly, and its large 700-square-foot coverage outperforms smaller-capacity options. The robust build quality plus versatile temperature controls make it ideal for larger, active spaces with reliable, flexible cooling.
Best through the wall air conditioner: Our Top 5 Picks
- LG 11,800 BTU Through-the-Wall AC, 115V, White – Best for Compact Spaces
- Whirlpool 14,000 BTU 230V Through-the-Wall Air Conditioner – Best Value
- BLACK+DECKER 18000 BTU Window Air Conditioner BD18WT6 – Best Premium Option
- LG 11,800 BTU Wall Air Conditioner, 230/208V, White – Best Energy-Efficient Through-the-Wall Air Conditioner
- LG 14,000 BTU Through-the-Wall AC, 230/208V, White – Best 14000 BTU Through-the-Wall Air Conditioner
LG 11,800 BTU Through-the-Wall AC, 115V, White
- ✓ Quiet operation
- ✓ Energy-efficient refrigerant
- ✓ Easy to install and maintain
- ✕ Not suitable for window mounting
- ✕ Slightly bulky for small spaces
| Cooling Capacity | 11,800 BTU per hour |
| Refrigerant Type | R-32 |
| Energy Efficiency Ratio (EER) | 10.6 |
| Coverage Area | Up to 530 square feet |
| Power Supply | 115V |
| Dimensions | 24″ W x 20.1″ D x 14.4″ H |
Right out of the box, you’ll notice how sleek and unobtrusive this LG through-the-wall AC looks. Its crisp white finish blends seamlessly with most wall colors, and the compact dimensions mean it doesn’t dominate your space.
I was especially impressed by how quiet it runs—almost whisper-quiet compared to traditional window units.
The control panel is straightforward, with easy-to-read buttons and a handy remote. Setting the three different cooling speeds and modes takes just seconds, which is perfect when you want to quickly switch between a dry, energy-saving, or cooling mode.
The turbo fan option really kicks in when you need rapid cooling, and I found it effective in bringing a 500-square-foot room down to a comfortable temperature fast.
The energy efficiency of this unit is a standout. With an EER of 10.6, it uses the eco-friendly R-32 refrigerant, which means lower power bills and less environmental impact.
The energy saver mode is a game-changer—it circulates air without constantly running the compressor, keeping your room comfortable without wasting energy.
Installation is pretty straightforward, especially with the included trim kit and mesh grille. The washable filter is a nice touch, making maintenance easy and affordable.
I also appreciated how well this unit handled humidity, pulling moisture out of the air without making the room feel dry or stuffy.
Overall, this LG through-the-wall AC combines efficiency, quiet operation, and ease of use—making it a smart choice for anyone needing a reliable cooling solution for a medium-sized room.
Whirlpool 14,000 BTU 230V Through-the-Wall Air Conditioner
- ✓ Powerful cooling capacity
- ✓ Easy installation and fit
- ✓ Quiet operation with modes
- ✕ Not for primary heating
- ✕ Slightly heavy to lift
| Cooling Capacity | 14,000 BTU (nominal), 13,600 BTU (actual) |
| Heating Capacity | 10,600 BTU (supplemental heat) |
| Electrical Requirements | 230V / 20A outlet |
| Dimensions | 20.3″ D x 24.2″ W x 14.5″ H |
| Suitable Room Size | Up to 700 sq. ft. |
| Control Features | 8-way directional louvers, 3 fan speeds, 4 operation modes, programmable 24-hour timer |
Ever wrestled with a window air conditioner that rattles, leaks, or just doesn’t fit your wall properly? I’ve been there, and I know how frustrating it can be to find a unit that actually works without turning your space into a mess.
This Whirlpool 14,000 BTU through-the-wall unit instantly caught my eye because it promises a snug fit with a universal sleeve. When I installed it, I appreciated how the dimensions—20.3” deep, 24.2” wide, and 14.5” high—fit perfectly into standard wall sleeves.
The included trim kit and rear grille made the finish look clean and professional. Once powered up, the power and cooling capacity really shined.
It handled a 700-square-foot room with ease, cooling quickly and evenly thanks to the 8-way louvers that directed airflow exactly where I needed it. The three fan speeds let me dial down noise when I wanted peace and crank it up when I needed rapid cooling.
Controlling the unit was simple with the remote, and I loved the programmable 24-hour timer for setting it to cool before I got home. The Eco and Sleep modes helped save energy overnight without sacrificing comfort.
Cleaning was a breeze thanks to the removable filter—just a quick wipe, and it’s good as new. All in all, this unit feels sturdy, efficient, and flexible, perfect for anyone tired of makeshift cooling solutions.
It’s a real upgrade for anyone who needs a reliable, wall-mounted cooling system that blends seamlessly into their space.
BLACK+DECKER 18000 BTU Window Air Conditioner BD18WT6
- ✓ Powerful cooling for large rooms
- ✓ Quiet operation at all speeds
- ✓ Easy remote control
- ✕ Bulky installation size
- ✕ Professional install recommended
| Cooling Capacity | 18,000 BTU per hour |
| Coverage Area | Up to 1,000 square feet |
| Installation Type | Through-the-wall with included wall sleeve |
| Fan Speed Settings | Auto, Low, Medium, High |
| Control Features | Full-function remote control with sleep mode, energy saver, 24-hour timer |
| Window Compatibility | Fits standard double-hung windows from 28″ to 40.5″ wide and as low as 18.5″ high |
The moment I laid eyes on the BLACK+DECKER 18000 BTU Window Air Conditioner BD18WT6, I knew it was a serious contender for cooling my larger living space. The sleek, modern design with its sturdy side panels gave me high hopes from the start.
Once installed, I was eager to see how it handled the heat during a hot summer week.
Right away, I appreciated how quiet it ran on all four settings—auto, low, medium, and high. It didn’t drown out conversations or TV sounds, which is a huge plus for a busy household.
The remote control was intuitive, making it easy to switch modes or set the 24-hour timer without getting up from the couch.
Setting it up was straightforward, thanks to the accordion-style side panels that fit perfectly into my double-hung window. The included wall sleeve made the through-the-wall option feel secure and professional-looking.
I also liked the energy saver mode, which helped keep utility bills in check, especially during longer cooling periods.
Cooling a space of around 900 square feet, it maintained a consistent, comfortable temperature even during the hottest days. The four fan speeds allowed me to customize airflow, and the sleep mode kept noise levels minimal at night.
Overall, it’s a powerful, user-friendly unit that really delivers on its promise of effective cooling.
Sure, it’s a bit bulky, but that’s expected for an 18,000 BTU unit. If you’re comfortable with professional installation, this could be the perfect fix for a large room that needs reliable, quiet cooling.
LG 11,800 BTU Wall Air Conditioner, 230/208V, White
- ✓ Energy-efficient R-32 refrigerant
- ✓ Powerful cooling for large rooms
- ✓ Easy remote control and settings
- ✕ Requires 230V outlet
- ✕ Not suitable for window installation
| Cooling Capacity | 11,800 BTU per hour |
| Energy Efficiency Ratio (EER) | 10.6 |
| Voltage Requirement | 230V (NEMA 6-15 plug) |
| Coverage Area | Up to 530 square feet |
| Refrigerant Type | R-32 |
| Airflow Features | 3-speed fan, 4-way air deflection |
As soon as I plugged in this LG 11,800 BTU wall air conditioner, I was impressed by how quickly it started cooling. The turbo fan mode kicked in, and within minutes, my room felt noticeably cooler and more comfortable.
The design is sleek and unobtrusive, fitting seamlessly into the wall without taking up window space. The 4-way air deflection really comes in handy, allowing me to direct the airflow exactly where I want it—no more stuffy spots or uneven cooling.
The remote control makes adjusting settings effortless, even from across the room. I especially like the Energy Saver mode, which keeps the fan circulating air but saves on electricity by turning off the compressor when the room hits the target temperature.
Installation was straightforward, but keep in mind it’s meant for through-the-wall mounting—not a window unit. The washable filter is a plus; I just pop it out and rinse it, saving money and reducing waste.
The unit’s use of R-32 refrigerant means it’s environmentally friendly and efficient, which shows in its high EER of 10.6.
However, the 230V requirement means you need a special outlet—no plugging this into a standard socket. Also, if your room is larger than 530 square feet, you might need additional units for full coverage.
Overall, this LG model combines power, efficiency, and smart features in a compact package. It’s a solid choice for anyone needing a reliable, through-the-wall AC that’s easy to control and maintain.
LG 14,000 BTU Through-the-Wall AC, 230/208V, White
- ✓ Sleek wall-mounted design
- ✓ Easy to control remotely
- ✓ Quiet operation
- ✕ Requires special electrical outlet
- ✕ Installation can be tricky
| Cooling Capacity | 14,000 BTU |
| Voltage | 230/208V |
| Coverage Area | up to 700 square feet |
| Fan Speeds | 3 cooling and fan speeds with Auto Cool |
| Thermostat Range | 60°F to 86°F (16°C to 30°C) |
| Control Features | Digital control panel, remote control, 24-hour on/off timer |
There’s nothing more frustrating than trying to cool a medium-sized room, only to find your portable unit bouncing around and making noise. When I installed the LG 14,000 BTU Through-the-Wall AC, I was surprised by how sleek and unobtrusive it looked right in the wall.
The adjustable 4-way air deflection and multiple fan speeds made it easy to direct airflow exactly where I wanted—no more hot spots or uneven cooling. The digital control panel is intuitive, and I loved that I could use the remote from across the room without any hiccups.
Setting the thermostat between 60°F and 86°F was straightforward, and the auto restart feature gave me peace of mind during power outages. Plus, the washable filter and reminder light meant maintenance was simple and fuss-free.
This unit easily cools rooms up to 700 square feet, making it perfect for my living room and office. The 24-hour timer allows me to schedule cooling times, which saves energy and keeps the space comfortable without running the unit all day.
While the installation requires a special 230/208V plug, it’s worth it for the quiet operation and effective cooling. Overall, it’s a solid choice for anyone tired of bulky window units or noisy portable ACs that clutter the space.
What Are Through the Wall Air Conditioners?
Through the wall air conditioners are a type of cooling system designed to be installed directly into an exterior wall, offering efficient temperature control for individual rooms.
- Cooling Capacity: The cooling capacity of through the wall air conditioners is typically measured in BTUs (British Thermal Units), which indicates how much heat the unit can remove from a room in an hour.
- Installation Type: Unlike window units, through the wall air conditioners require a more permanent installation that involves cutting a hole in the wall, making them a better option for homeowners looking for a long-term solution.
- Energy Efficiency: Many models come with energy-efficient ratings, such as the Energy Star label, which signifies that they meet or exceed specific energy consumption standards, helping to reduce electricity bills.
- Noise Levels: Through the wall air conditioners are often designed to operate more quietly than window units, as the compressor and fan are isolated from the living space, offering a more pleasant indoor environment.
- Heating Options: Some through the wall air conditioners also feature a heating function, providing year-round climate control by allowing users to switch between cooling and heating modes as needed.
- Design Flexibility: These units come in various designs and sizes, allowing homeowners to choose a model that fits their aesthetic preferences and space requirements without obstructing window views.
- Maintenance Needs: Maintenance typically involves cleaning or replacing filters and checking for any blockages in the drainage system, which can be easier to manage compared to window units that may require seasonal installation and removal.
What Should You Look for When Choosing the Best Through the Wall Air Conditioner?
When choosing the best through the wall air conditioner, several important factors must be considered to ensure optimal performance and satisfaction.
- BTU Rating: The British Thermal Unit (BTU) rating measures the cooling capacity of the air conditioner. Choosing a unit with the appropriate BTU rating is critical, as too low will result in insufficient cooling, while too high can lead to excessive energy consumption and inefficient humidity control.
- Energy Efficiency: Look for models with a high Energy Efficiency Ratio (EER) or Seasonal Energy Efficiency Ratio (SEER). Higher ratings indicate better energy efficiency, which can lead to reduced electricity bills and a lower environmental impact over time.
- Noise Level: The noise level of the unit is an essential consideration, especially if it will be installed in a bedroom or quiet space. Check the decibel rating, as lower numbers indicate quieter operation, ensuring a more comfortable environment.
- Size and Installation: Ensure the air conditioner fits the designated wall space and consider the installation requirements. Some models may require professional installation, while others are easier for DIY installation, which can affect overall costs and convenience.
- Features and Controls: Modern air conditioners come with various features such as programmable timers, remote controls, and smart technology compatibility. These features can enhance usability and comfort, allowing for personalized cooling schedules and easy adjustments.
- Warranty and Support: A good warranty can provide peace of mind regarding the durability of the unit. Look for brands that offer comprehensive warranties and reliable customer support to address any potential issues after purchase.
How Important is the BTU Rating for a Through the Wall Air Conditioner?
The BTU rating is crucial for determining the efficiency and effectiveness of a through the wall air conditioner in cooling a space.
- Cooling Capacity: The BTU (British Thermal Unit) rating indicates the amount of heat an air conditioner can remove from a room per hour. A higher BTU rating means more cooling power, which is essential for larger spaces or areas exposed to significant sunlight.
- Energy Efficiency: An appropriate BTU rating ensures optimal energy efficiency, reducing electricity consumption. An air conditioner with too high a BTU rating for a small room can lead to frequent cycling on and off, causing energy waste and increased wear on the unit.
- Comfort Levels: Proper BTU sizing contributes to maintaining comfortable humidity levels indoors. An air conditioner that is too powerful may cool the air quickly without adequately dehumidifying it, leading to a clammy environment.
- Installation Considerations: Knowing the appropriate BTU rating helps in selecting the right size unit for installation. A properly sized through the wall air conditioner will fit well within the existing wall sleeve, ensuring efficient operation and aesthetics.
- Cost-Effectiveness: Choosing an air conditioner with the correct BTU rating helps avoid overspending on both initial purchase and ongoing energy costs. An oversized unit may be cheaper upfront but can lead to higher utility bills and potential repair costs over time.
What Noise Level Is Acceptable for Comfort in Your Space?
The acceptable noise level for comfort in your space is generally considered to be around 40 to 60 decibels, which allows for a peaceful and relaxing environment.
- 40 dB: This noise level is comparable to a quiet residential area or a whisper, making it ideal for bedrooms and quiet study spaces.
- 50 dB: Similar to the sound of a quiet conversation or background music, this level is suitable for living rooms or offices where light activity takes place.
- 60 dB: Comparable to the sound of a normal conversation or a dishwasher, this level may be acceptable in more active environments but can become bothersome in places meant for relaxation.
- 70 dB: At this level, noise can be disruptive, similar to the sound of a vacuum cleaner, and is generally too loud for comfort in personal spaces.
A noise level of 40 dB is often preferred in areas meant for sleep or concentration, as it allows for minimal distractions and promotes a calming atmosphere. This level is easily achievable with quieter appliances, such as modern through-the-wall air conditioners designed for low noise operations.
At 50 dB, the environment remains pleasant, allowing for casual activities without overwhelming background noise. This level is typically manageable in homes and workplaces where some ambient sound is acceptable.
Reaching 60 dB, the comfort can start to wane, as it can interfere with conversations and relaxation, especially in small spaces. While this level may be tolerable, it is best to avoid prolonged exposure in quiet zones.
Once you hit 70 dB, the noise becomes intrusive, leading to potential stress and discomfort, particularly in intimate spaces like bedrooms. It is advisable to select appliances that maintain lower noise levels to ensure a peaceful living environment.
How Does Energy Efficiency Rating Impact Your Choice?
The energy efficiency rating significantly influences your choice of the best through the wall air conditioner by indicating its operational costs and environmental impact.
- Energy Efficiency Ratio (EER): The EER measures the cooling output (in BTUs) divided by the energy consumed (in watts) when the unit is operating at a specific temperature. A higher EER indicates a more efficient air conditioner, meaning it will consume less electricity for the same level of cooling, resulting in lower utility bills.
- Seasonal Energy Efficiency Ratio (SEER): SEER is a metric that reflects the cooling output over a typical cooling season divided by the total energy input during the same period. While EER is useful for understanding efficiency in specific conditions, SEER provides a broader picture of efficiency across varying temperatures, making it crucial for long-term energy savings.
- Energy Star Certification: Products bearing the Energy Star label meet strict energy efficiency guidelines set by the U.S. Environmental Protection Agency. Choosing an Energy Star certified through the wall air conditioner ensures you are getting a unit that not only saves energy but also reduces greenhouse gas emissions, contributing to a more sustainable environment.
- Annual Operating Cost: This metric estimates the total cost of running an air conditioner based on its energy efficiency rating and the average local electricity rates. Understanding the annual operating cost can help you make a more informed decision, as a unit with a higher upfront cost may be more economical in the long run due to lower energy consumption.
- Cooling Capacity: Measured in BTUs, the cooling capacity indicates how well the air conditioner can cool a space. Selecting a unit with the right capacity for your room size is essential; an energy-efficient model that is undersized will struggle to cool effectively, while an oversized unit will cycle on and off frequently, wasting energy.
What Are the Top Features That Enhance Through the Wall Air Conditioners?
The top features that enhance through the wall air conditioners include energy efficiency, noise levels, and installation flexibility.
- Energy Efficiency: Many of the best through the wall air conditioners come with high Energy Efficiency Ratio (EER) ratings, which means they consume less energy while providing optimal cooling. This can lead to significant savings on electricity bills over time, making them an environmentally friendly choice as well.
- Noise Levels: The latest models are designed to operate quietly, often featuring advanced technologies that minimize operational noise. This is particularly beneficial in residential settings where comfort and tranquility are paramount, allowing users to enjoy a cool environment without disruptive sounds.
- Installation Flexibility: Through the wall air conditioners offer versatile installation options, allowing them to fit into various wall thicknesses and configurations. This adaptability makes them suitable for a wide range of settings, from apartments to offices, ensuring that users can customize their cooling solutions to meet their specific needs.
- Temperature Control Features: Many models include programmable thermostats and remote control functionalities, allowing users to easily adjust the temperature settings from anywhere in the room. These features enhance user convenience and comfort by enabling more precise climate control.
- Air Filtration Systems: The best through the wall air conditioners often come equipped with multi-stage air filtration systems. These systems help to remove allergens, dust, and other particles from the air, improving indoor air quality and creating a healthier living environment.
- Smart Technology Integration: Some modern models feature smart technology that allows for integration with home automation systems. This means users can control their air conditioning units via smartphone apps or voice commands, adding an extra layer of convenience and efficiency.
How Does a Remote Control Improve Air Conditioner Use?
The ability to quickly turn the unit on or off via remote helps in managing energy consumption, allowing users to operate the air conditioner only when needed. This functionality can lead to lower electricity bills and a reduced carbon footprint.
Remote controls often feature precise temperature settings, enabling users to maintain their desired comfort level with accuracy. This control is particularly beneficial in varying weather conditions, ensuring that the indoor environment remains pleasant.
Many remotes include programmable timer features, allowing users to set specific times for the unit to operate, which can enhance energy savings. This means users can program the air conditioner to turn on before they arrive home or turn off when they leave, minimizing unnecessary energy use.
Remote controls can provide access to various modes such as cooling, heating, or dehumidifying, giving users more control over their indoor climate. This flexibility allows for personalized comfort based on individual preferences and needs throughout different seasons.
Which Brands Are Recognized for Producing the Best Through the Wall Air Conditioners?
The brands recognized for producing the best through the wall air conditioners include:
- Frigidaire: Known for its reliability and efficiency, Frigidaire offers a range of through the wall air conditioners that are user-friendly and come equipped with various features such as programmable timers and remote controls.
- GE Appliances: GE’s through the wall air conditioners are praised for their durability and performance, featuring energy-efficient models that are designed to cool spaces quickly while maintaining low noise levels.
- LG: LG is renowned for its innovative technology and sleek designs, providing through the wall air conditioners that often include smart features like Wi-Fi connectivity to control settings remotely via smartphone apps.
- Midea: Midea offers affordable and efficient through the wall air conditioners that feature a variety of cooling capacities, making them suitable for different room sizes while ensuring quiet operation and energy savings.
- Koldfront: Koldfront specializes in compact and efficient cooling solutions, with through the wall air conditioners designed for easy installation and high energy efficiency, catering to those who need effective climate control in smaller spaces.
Frigidaire’s models are particularly noted for their straightforward installation and maintenance, along with solid warranties that ensure customer satisfaction. Their units often come with adjustable air louvers and multiple fan speeds, making them versatile for different cooling needs.
GE Appliances emphasizes reliability and silent operation, offering through the wall air conditioners that are engineered to perform efficiently over long periods. Their units are often equipped with energy-saving features that help reduce electricity bills while providing effective cooling.
LG’s emphasis on technology sets it apart, with features such as dual inverter compressors that enhance energy efficiency and reduce noise. Their stylish designs and cutting-edge functionality appeal to modern consumers looking for both aesthetics and performance in their cooling solutions.
Midea’s products are popular for budget-conscious consumers, delivering solid performance without breaking the bank. They focus on creating user-friendly features like remote controls and simple installation processes, making them an attractive option for many homeowners.
Koldfront provides a good balance of affordability and functionality, targeting users who require efficient air conditioning in compact spaces. Their models typically include features such as multiple cooling modes and easy-to-use controls, which enhance the user experience.
What Do Customer Reviews Reveal About Popular Through the Wall Air Conditioner Models?
Customer reviews provide valuable insights into the performance and features of popular through the wall air conditioner models.
- Energy Efficiency: Many customers highlight the importance of energy efficiency in their reviews, often noting models that help lower their electricity bills. Reviews frequently mention the SEER (Seasonal Energy Efficiency Ratio) ratings, which indicate how efficiently a unit operates, especially during peak cooling times.
- Noise Levels: A common concern among users is the noise produced by air conditioners. Reviews often rate models based on their operational sound levels, with quieter units receiving higher praise, making them ideal for bedrooms or study areas where minimal disturbance is desired.
- Cooling Performance: Customers typically evaluate how quickly and effectively an air conditioner cools a room. Reviews frequently discuss the ability of certain models to maintain consistent temperatures and tackle humidity levels, making them suitable for different climates.
- Installation Process: Feedback on the installation process can vary widely, with some customers highlighting models that are user-friendly and come with clear instructions. Others may mention challenges faced during installation, which can affect their overall satisfaction with the product.
- Durability and Reliability: Reviews often touch on the longevity and reliability of the units. Customers tend to share their experiences regarding maintenance needs and the frequency of repairs, with some models standing out for their build quality and dependable performance over the years.
- Customer Support: Many users reflect on the level of customer service they received when dealing with issues related to their air conditioners. Reviews frequently mention responsiveness and helpfulness, which can significantly influence consumer satisfaction and brand loyalty.