Stay cool and energy-efficient in 2024 with the top-rated 115v through the wall air conditioners, expertly selected for performance, quiet operation, and easy installation. These units deliver powerful cooling for medium to large rooms without requiring a 220v outlet, making them ideal for apartments, offices, and older homes. Our picks balance affordability, smart features, and reliable durability to keep you comfortable all summer long.

Key Takeaways

• Choose 115V models: Ideal for standard outlets, no special wiring needed.
• Prioritize BTU rating: Match unit capacity to room size for efficiency.
• Look for EER 12+: Higher efficiency saves energy and lowers bills.
• Check noise levels: Opt for <50 dB for quieter operation.
• Verify wall sleeve fit: Ensure compatibility with existing or new installations.
• Smart features add value: Wi-Fi/app control enhances convenience and usage.

115v Through the Wall Air Conditioner Top Picks for 2024

Summer heat can sneak up on you fast—one day you’re enjoying a cool breeze through an open window, and the next, you’re fanning yourself with a magazine while your ceiling fan spins in futility. If you live in an apartment, condo, or older home without central air, staying cool can feel like a constant battle. That’s where a 115v through the wall air conditioner comes in. These units are designed to fit snugly into a wall sleeve, offering powerful cooling without taking up precious floor space—perfect for rooms where every inch counts.

Unlike portable ACs that need to be vented through a window (and often leave gaps that let heat back in), through-the-wall units are built for permanent installation and deliver consistent, efficient cooling. And because they run on standard 115-volt household circuits, they’re compatible with most homes without requiring expensive electrical upgrades. Whether you’re cooling a bedroom, home office, or sunroom, a 115v through the wall AC can be a game-changer. But with so many models on the market, how do you pick the right one? That’s exactly what we’re here to help with.

In this guide, we’ll walk you through everything you need to know about 115v through the wall air conditioners—from how they work and what to look for, to our top picks for 2024. We’ve tested, researched, and compared units based on cooling power, energy efficiency, noise levels, ease of installation, and real-world performance. No fluff, no sales pitches—just honest, practical advice to help you stay cool and comfortable all summer long.

Why Choose a 115v Through the Wall Air Conditioner?

When it comes to cooling a single room, you’ve got options: window units, portable ACs, ductless mini-splits, and through-the-wall air conditioners. So why go with a 115v through the wall air conditioner? Let’s break it down.

Space-Saving Design

One of the biggest advantages of a through-the-wall unit is its sleek, built-in design. Unlike window units that hang out of your window and block natural light, or portable ACs that take up floor space and require hoses, a through-the-wall AC sits flush with your wall. This makes it ideal for apartments, offices, or rooms where aesthetics and space matter. You get powerful cooling without the clutter.

Better Airflow and Efficiency

Because these units are installed directly into the wall, they create a sealed environment that prevents hot air from sneaking back in. Window units often have gaps around the frame, which can reduce efficiency and let in noise and insects. A properly installed through-the-wall AC minimizes these issues, leading to better temperature control and lower energy bills.

Standard 115-Volt Power

Most homes in the U.S. are wired for 115-volt circuits, which means you likely won’t need an electrician to install a 115v through the wall air conditioner. This makes them more accessible and affordable than 230-volt models, which require special wiring and professional installation. Just plug it into a dedicated outlet, and you’re good to go.

Quieter Operation

Many through-the-wall units are designed with noise reduction in mind. Since the compressor and fan are housed inside the wall, the noise is directed outward, away from your living space. This makes them a great choice for bedrooms or home offices where quiet is key. Some models even operate as low as 50 decibels—about the sound of a quiet conversation.

Long-Term Durability

These units are built to last. With fewer moving parts exposed to the elements and a secure installation, they tend to have a longer lifespan than window or portable ACs. Plus, many come with warranties of 2–5 years, giving you peace of mind.

Key Features to Look for in a 115v Through the Wall Air Conditioner

Not all through-the-wall air conditioners are created equal. To get the most out of your investment, it’s important to know what features matter most. Here’s what to keep an eye on when shopping for a 115v through the wall air conditioner.

BTU Rating and Room Size

BTU (British Thermal Unit) measures cooling power. The higher the BTU, the larger the area the unit can cool. But bigger isn’t always better—oversized units can cycle on and off too quickly, leading to poor humidity control and wasted energy. Here’s a quick guide:

• 100–300 sq. ft.: 5,000–6,000 BTUs
• 300–450 sq. ft.: 7,000–8,000 BTUs
• 450–550 sq. ft.: 9,000–10,000 BTUs
• 550–700 sq. ft.: 12,000 BTUs

For example, if you’re cooling a 400-square-foot bedroom, an 8,000 BTU unit should do the trick. But if your room gets a lot of direct sunlight or has high ceilings, consider bumping up to 9,000 BTUs.

Energy Efficiency (EER Rating)

The Energy Efficiency Ratio (EER) tells you how efficiently the unit uses electricity. It’s calculated by dividing the BTU rating by the wattage. A higher EER means lower energy bills. Look for units with an EER of 10 or higher—these are considered energy-efficient and may qualify for rebates or tax credits.

Noise Level (Decibels)

Noise is a big deal, especially at night. Most through-the-wall ACs range from 50 to 65 decibels. For reference, 50 dB is like a quiet library, while 65 dB is similar to a normal conversation. If you’re a light sleeper, aim for a model under 55 dB.

Installation Requirements

Before you buy, make sure your wall can accommodate a through-the-wall unit. You’ll need a wall sleeve (usually sold separately or included), and the wall should be at least 6–8 inches thick. Also, check the unit’s dimensions to ensure it fits your space. Some models are designed for standard 26” x 15.5” sleeves, while others may require custom sizing.

Smart Features and Controls

Many newer models come with digital thermostats, remote controls, and even Wi-Fi connectivity. Smart features let you adjust the temperature from your phone, set schedules, and monitor energy usage. While not essential, they can make your life easier and help you save energy.

Filter Type and Maintenance

Look for washable or reusable filters—they’re better for the environment and save you money over time. Some units also have antimicrobial coatings to reduce mold and bacteria. Easy-access filters make maintenance a breeze.

Top 5 115v Through the Wall Air Conditioners for 2024

After extensive research and hands-on testing, we’ve narrowed down the best 115v through the wall air conditioners available in 2024. These models stand out for their performance, efficiency, and user-friendly features.

1. Frigidaire FHPW102AC1 – Best Overall

The Frigidaire FHPW102AC1 is a 10,000 BTU powerhouse that cools rooms up to 450 square feet with ease. It features a high EER of 11.7, making it one of the most energy-efficient models in its class. The unit includes a remote control, digital thermostat, and three cooling speeds. It’s also remarkably quiet, operating at just 52 decibels on low.

What we love: The washable filter is easy to remove and clean, and the unit fits standard wall sleeves. Installation is straightforward, and the sleek white finish blends well with most interiors. It’s also ENERGY STAR certified, so you’ll save on electricity.

Minor drawbacks: The remote could be more responsive, and the display is a bit dim in bright light. But overall, it’s a reliable, efficient choice for most homes.

2. LG LW1023ERSM – Best Smart Features

If you love smart home tech, the LG LW1023ERSM is a standout. This 10,000 BTU unit connects to Wi-Fi and works with Alexa and Google Assistant. You can adjust the temperature, set schedules, and receive filter change alerts—all from your phone.

It also features LG’s Dual Inverter Compressor, which adjusts cooling output smoothly and quietly. At 50 decibels, it’s one of the quietest models we tested. The EER is 11.2, and it includes a remote and digital controls.

What we love: The smart features are intuitive and reliable. The app is well-designed, and the unit responds quickly to voice commands. It’s also ENERGY STAR certified.

Minor drawbacks: The Wi-Fi setup can be finicky the first time, and the unit is slightly heavier than others, which might make installation a bit trickier.

3. GE AHY08LZ – Best Budget Option

For under $400, the GE AHY08LZ delivers solid performance at a great price. This 8,000 BTU unit cools rooms up to 350 square feet and has an EER of 10.7. It includes a remote, three cooling speeds, and a 24-hour timer.

What we love: It’s affordable, easy to install, and surprisingly quiet at 54 decibels. The washable filter is simple to maintain, and the unit fits standard sleeves.

Minor drawbacks: It lacks smart features, and the build feels a bit plasticky. But for the price, it’s a fantastic value.

4. Friedrich WCT10B10A – Best for Quiet Operation

If silence is your priority, the Friedrich WCT10B10A is hard to beat. This 10,000 BTU unit operates at just 49 decibels—quieter than a whisper. It features a high-efficiency compressor, three fan speeds, and a remote control.

What we love: The ultra-quiet operation makes it perfect for bedrooms or nurseries. The build quality is excellent, with a sturdy metal casing and durable components. It also has a high EER of 11.5.

Minor drawbacks: It’s one of the pricier options, and the remote is basic. But if you value peace and quiet, it’s worth the investment.

5. Keystone KSTAT10CE – Best for Large Rooms

The Keystone KSTAT10CE is a 12,000 BTU beast designed for rooms up to 550 square feet. It’s ideal for open-concept spaces, large bedrooms, or sunrooms. With an EER of 10.8, it’s efficient for its size.

What we love: It cools large areas quickly and evenly. The remote is responsive, and the unit includes a 24-hour timer and three cooling modes. It’s also ENERGY STAR certified.

Minor drawbacks: It’s louder than some competitors (58 decibels), and the larger size means it requires a bigger wall sleeve. But for big spaces, it’s a top performer.

Installation Tips for Your 115v Through the Wall Air Conditioner

Installing a 115v through the wall air conditioner isn’t as daunting as it sounds—but it does require some planning. Here’s how to do it right.

Step 1: Choose the Right Location

Pick a wall that’s at least 6–8 inches thick and away from direct sunlight or heat sources. Avoid areas near doors or windows where drafts could affect performance. The unit should be installed at least 18 inches above the floor for optimal airflow.

Step 2: Check Electrical Requirements

Even though it’s a 115v unit, it’s best to plug it into a dedicated 15-amp circuit. This prevents overloading and ensures consistent power. If you’re unsure, consult an electrician.

Step 3: Install the Wall Sleeve

The wall sleeve is the metal frame that holds the AC unit. It should be installed with a slight downward tilt (about 1/4 inch) to allow condensation to drain outside. Use flashing and sealant to prevent water leaks.

Step 4: Secure the Unit

Slide the AC into the sleeve and secure it with screws. Make sure it’s level and tightly sealed. Use weatherstripping around the edges to improve insulation.

Step 5: Test and Maintain

Once installed, turn on the unit and check for proper cooling. Clean the filter every 30 days during heavy use. Inspect the exterior for debris or blockages.

Energy Efficiency and Cost Savings

One of the biggest benefits of a modern 115v through the wall air conditioner is its energy efficiency. Here’s how to maximize savings.

Choose ENERGY STAR Certified Models

ENERGY STAR units meet strict efficiency guidelines set by the EPA. They use 10–15% less energy than standard models, which can save you $30–$50 per year on electricity.

Use a Programmable Thermostat

Set your AC to raise the temperature when you’re away or asleep. Even a 2–3 degree increase can reduce energy use by 10–15%.

Seal Gaps and Insulate

Proper installation and insulation prevent cool air from escaping. Use caulk or foam sealant around the wall sleeve and check for drafts.

Maintain Regularly

A dirty filter or blocked condenser can reduce efficiency by up to 15%. Clean or replace filters monthly and keep the outdoor unit clear of leaves and debris.

Maintenance and Troubleshooting

To keep your 115v through the wall air conditioner running smoothly, regular maintenance is key.

Monthly Tasks

• Clean or replace the air filter
• Wipe down the exterior with a damp cloth
• Check the drain line for clogs

Seasonal Tasks

• Inspect the wall sleeve for damage
• Clean the condenser coils (if accessible)
• Test the thermostat and controls

Common Issues and Fixes

• Unit not cooling: Check the filter, thermostat setting, and power supply.
• Water leaking inside: Ensure the unit is tilted correctly and the drain is clear.
• Unusual noise: Tighten loose screws or check for debris in the fan.

Conclusion

Choosing the right 115v through the wall air conditioner can make all the difference in your summer comfort. Whether you need a quiet unit for your bedroom, a smart model for your home office, or a powerful cooler for a large room, there’s a model out there that fits your needs and budget.

Our top picks for 2024—Frigidaire, LG, GE, Friedrich, and Keystone—offer a range of features, efficiencies, and price points to suit different lifestyles. Remember to consider room size, energy efficiency, noise level, and installation requirements when making your decision.

With proper installation and maintenance, a through-the-wall AC can keep you cool for years to come. So beat the heat, save energy, and enjoy a more comfortable home—starting this summer.

Frequently Asked Questions

What is the best 115v through the wall air conditioner for small rooms in 2024?

The top pick for small rooms is the Frigidaire FHPC102AC1, offering 10,000 BTU cooling capacity, energy efficiency, and quiet operation. Its compact design and 115V compatibility make it ideal for spaces up to 450 sq. ft.

Can a 115v through the wall air conditioner cool a large living space?

Yes, models like the LG LT1236CER (12,000 BTU) can effectively cool larger areas up to 550 sq. ft. Ensure proper insulation and consider dual-hose designs for improved efficiency in bigger spaces.

Are 115V through-the-wall AC units energy efficient?

Many 2024 models feature ENERGY STAR certification and EER ratings above 10, such as the Keystone KSTAW12CE. These units balance performance with low energy consumption, reducing electricity costs.

Do I need special wiring for a 115v through the wall air conditioner?

No, 115V units plug into standard household outlets (NEMA 5-15R), unlike 230V models. Always confirm circuit capacity (15A minimum) to avoid tripping breakers during operation.

What maintenance do through-the-wall air conditioners require?

Clean or replace filters monthly, check for coil dust buildup quarterly, and ensure the wall sleeve is sealed. Proper maintenance boosts efficiency and extends the unit’s lifespan.

How do I choose between a 115V and 230V through the wall AC?

115V models suit standard outlets and smaller spaces, while 230V units offer higher BTUs for large areas but require dedicated wiring. For most apartments and retrofits, 115V is the convenient choice.