Stay cool and comfortable on your RV adventures with the best wall mount RV air conditioner—designed for efficient, space-saving climate control. These units offer powerful cooling performance, easy installation, and reliable operation, making them ideal for long trips or hot climates. Upgrade your mobile living space with a wall-mounted AC that delivers quiet, consistent comfort without sacrificing valuable floor space.

Key Takeaways

• Choose dual-hose models: Improves cooling efficiency and reduces energy use.
• Check BTU rating: Match to RV size for optimal cooling performance.
• Prioritize low-noise units: Ensures quiet comfort during rest and sleep.
• Verify installation requirements: Confirm wall thickness and electrical compatibility first.
• Look for smart features: Remote controls and timers enhance convenience.
• Ensure proper sealing: Prevents leaks and maintains indoor air quality.

The Best Wall Mount RV Air Conditioner for Cool Comfort on the Road

Imagine this: you’re parked at a scenic overlook in the middle of summer, the sun blazing down like a spotlight, and your RV feels more like an oven than a cozy retreat. You crank up the AC, but it’s struggling—maybe it’s an old rooftop unit that rattles all night or just can’t keep up with the heat. Sound familiar? If you’ve ever spent a sweltering night in your RV wishing for better cooling, you’re not alone. That’s where a wall mount RV air conditioner comes in—a sleek, efficient, and surprisingly powerful solution that’s changing the game for full-time RVers and weekend warriors alike.

Unlike traditional rooftop units, a wall mount RV air conditioner is installed directly into the side or rear wall of your rig. It’s quieter, more energy-efficient, and often easier to maintain. Plus, it frees up valuable rooftop space for solar panels, storage, or just enjoying the view. Whether you’re upgrading from an outdated system or building out a new RV setup, choosing the right wall mount AC can make all the difference in your comfort on the road. In this guide, we’ll walk you through everything you need to know—from how these units work to what to look for when buying—so you can stay cool, calm, and collected no matter where your travels take you.

Why Choose a Wall Mount RV Air Conditioner?

When it comes to cooling your RV, most people immediately think of rooftop units. They’ve been the standard for decades, and for good reason—they work. But they’re not perfect. Rooftop ACs can be noisy, prone to leaks, and a hassle to service. They also take up prime real estate on your roof, which is increasingly valuable if you’re adding solar panels or satellite dishes. That’s why more and more RV owners are making the switch to wall mount RV air conditioners.

Space-Saving Design

One of the biggest advantages of a wall mount RV air conditioner is the space it saves. By installing the unit on the side or rear wall of your RV, you free up your entire roof. This opens up possibilities for solar installations, roof racks, or even just a cleaner, more aerodynamic look. For tiny homes on wheels or compact travel trailers, every square inch counts—and a wall mount AC helps maximize your usable space.

Quieter Operation

Noise is a major complaint with rooftop units. The compressor and fan are right above your head, and even the best models can produce a constant hum that disrupts sleep or conversation. Wall mount RV air conditioners, on the other hand, are typically quieter. Since the compressor is often housed inside the RV or in a sound-dampened enclosure, the noise level drops significantly. Many users report sleeping through the night without even noticing the AC is running—something that’s nearly impossible with a standard rooftop unit.

Improved Energy Efficiency

Wall mount units are often more energy-efficient than their rooftop counterparts. Because they’re installed at ground level or lower on the wall, they don’t have to work as hard to circulate cool air throughout the RV. This means lower amp draw, which is especially important if you’re running off solar power or a generator. Some models even come with inverter technology, which adjusts cooling output based on demand—saving energy and reducing wear on the system.

Easier Maintenance and Repairs

Let’s face it: rooftop ACs are a pain to service. You need a ladder, tools, and sometimes a second person just to access the unit. With a wall mount RV air conditioner, most components are accessible from inside the RV or through an exterior panel at waist height. This makes routine maintenance—like cleaning filters or checking refrigerant levels—much simpler. And if something does go wrong, repairs are faster and less expensive.

Better Aesthetics

Let’s not overlook the visual appeal. A sleek wall mount unit blends into the side of your RV, giving it a cleaner, more modern look. No bulky domes or protruding units disrupting the lines of your rig. For RVers who care about design—or who just want to avoid looking like a moving appliance store—this is a big win.

How Wall Mount RV Air Conditioners Work

If you’re new to wall mount systems, you might be wondering how they actually function. Do they work the same as rooftop units? Are they harder to install? Let’s break it down in simple terms.

The Basic Components

Like any air conditioner, a wall mount RV air conditioner has four main parts: the compressor, condenser, evaporator, and expansion valve. The compressor pressurizes the refrigerant, which then flows to the condenser (where it releases heat), passes through the expansion valve, and enters the evaporator (where it absorbs heat from the air). The cooled air is then blown into your RV by a fan.

What makes wall mount units different is their layout. In a rooftop AC, all these components are stacked vertically in a single housing. In a wall mount system, they’re often split. The compressor and condenser might be housed in a separate outdoor unit (similar to a mini-split), while the evaporator and fan are inside the RV. This split design allows for quieter operation and more flexible installation.

Installation Process

Installing a wall mount RV air conditioner isn’t as simple as bolting on a rooftop unit, but it’s not rocket science either. Most systems require cutting a hole in the side or rear wall of your RV—usually around 14” x 14” to 18” x 18”, depending on the model. You’ll also need to run refrigerant lines, electrical wiring, and a drain hose between the indoor and outdoor units.

For DIYers with basic tools and some experience, this is a manageable weekend project. However, if you’re not comfortable with electrical work or cutting into your RV’s exterior, it’s best to hire a professional. Improper installation can lead to leaks, poor performance, or even damage to your RV’s structure.

Power Requirements

Wall mount RV air conditioners typically run on 120V AC power, just like rooftop units. However, because they’re often more efficient, they may draw fewer amps—sometimes as low as 8–10 amps on startup, compared to 12–15 for a standard rooftop AC. This is a big plus if you’re boondocking or relying on solar power.

Some high-end models also offer 12V DC options or compatibility with inverters, making them ideal for off-grid setups. Always check the manufacturer’s specs to ensure your electrical system can handle the load.

Cooling Capacity and BTUs

Just like rooftop units, wall mount RV air conditioners are rated by BTUs (British Thermal Units), which measure cooling power. For most RVs, a unit with 9,000 to 15,000 BTUs is sufficient. Smaller travel trailers might get by with 9,000 BTUs, while larger motorhomes or fifth wheels may need 13,500 or 15,000 BTUs—especially if you’re traveling in hot climates.

Keep in mind that BTU ratings can be misleading. A unit might claim 15,000 BTUs, but real-world performance depends on insulation, window coverage, sun exposure, and altitude. If you’re unsure, it’s better to go slightly higher than your estimated need rather than risk an underpowered system.

Top Features to Look for in a Wall Mount RV Air Conditioner

Not all wall mount RV air conditioners are created equal. With so many models on the market, it’s important to know what features matter most. Here’s what to prioritize when shopping.

Energy Efficiency (EER Rating)

The Energy Efficiency Ratio (EER) tells you how much cooling a unit provides per watt of electricity. A higher EER means better efficiency. Look for models with an EER of 10 or higher—this is especially important if you’re running off solar or a generator. Some premium units boast EER ratings of 12 or more, which can significantly reduce your power consumption.

Quiet Operation (Decibel Level)

Noise levels are measured in decibels (dB). For reference, a whisper is about 30 dB, normal conversation is 60 dB, and a rooftop AC can hit 65–70 dB. A good wall mount RV air conditioner should operate below 55 dB—quiet enough to hear your music or have a conversation without raising your voice.

Smart Controls and Thermostats

Many modern wall mount units come with digital thermostats, remote controls, or even Wi-Fi connectivity. This allows you to adjust the temperature from your phone, set schedules, or monitor energy usage. Some models even integrate with smart home systems like Alexa or Google Home—perfect for tech-savvy RVers.

Built-in Air Filtration

Air quality matters, especially in dusty or pollen-heavy environments. Look for units with washable or replaceable filters that capture dust, allergens, and odors. Some models include UV-C lights or ionizers to kill bacteria and mold—great for people with allergies or respiratory issues.

Durability and Weather Resistance

Your AC unit will be exposed to the elements, so it needs to be built to last. Check for corrosion-resistant materials, sealed electrical components, and UV-resistant housings. If you’re traveling in extreme climates—desert heat or coastal humidity—make sure the unit is rated for those conditions.

Warranty and Customer Support

A good warranty is a sign of a manufacturer’s confidence in their product. Look for at least a 1-year parts and labor warranty, with some brands offering up to 5 years on compressors. Also, check reviews for customer service responsiveness—because when something goes wrong on the road, you want help fast.

Installation Tips and Common Mistakes to Avoid

Installing a wall mount RV air conditioner can be a rewarding DIY project—but it’s not without its challenges. Here’s how to do it right and avoid the most common pitfalls.

Plan Your Installation Location

Before you grab a saw, think carefully about where to install the unit. Ideal locations are on the side or rear wall, away from windows, vents, or structural supports. Avoid areas near the kitchen or bathroom, where moisture and grease can affect performance. Also, consider airflow—make sure the indoor unit can distribute cool air evenly throughout the RV.

Seal All Openings Properly

One of the biggest mistakes DIYers make is failing to seal the installation properly. Gaps around the unit can let in hot air, moisture, or even pests. Use high-quality silicone sealant and foam insulation to create a tight seal. For the refrigerant lines and electrical conduit, use rubber grommets or compression fittings to prevent leaks.

Level the Unit

Even a small tilt can cause drainage problems or strain the compressor. Use a level during installation and shim the unit if necessary. Most manufacturers recommend a slight outward tilt (about 1/4 inch) to ensure proper condensate drainage.

Test Before Finalizing

Once the unit is installed, run a test cycle before sealing everything up. Check for leaks, unusual noises, or error codes. Make sure the thermostat responds correctly and that cool air is flowing. If something’s off, it’s much easier to fix now than after you’ve resealed the wall.

Don’t Overlook Electrical Safety

Always turn off the power at the breaker before working on electrical connections. Use the correct wire gauge and ensure all connections are tight and insulated. If you’re unsure, consult an electrician—RV electrical systems can be tricky, and a mistake could lead to fire or damage.

Consider Professional Help

If you’re not confident in your skills, don’t hesitate to hire a professional. A qualified RV technician can install the unit correctly, ensure it’s up to code, and often provide a warranty on the work. It might cost more upfront, but it could save you headaches—and money—down the road.

Top Wall Mount RV Air Conditioner Models to Consider

With so many options on the market, it can be hard to know where to start. Here are a few standout models that balance performance, efficiency, and reliability.

Model	BTU Rating	EER	Noise Level (dB)	Key Features
Dometic Penguin II Low-Profile	13,500	12.0	52	Low-profile design, quiet operation, optional heat pump
Airxcel 48204C876 (Coleman)	15,000	11.5	55	High cooling power, durable construction, easy maintenance
Advantage Air 15K Wall Mount	15,000	10.8	54	Compact design, built-in thermostat, affordable price
RecPro 13.5K Mini-Split	13,500	13.5	48	Ultra-quiet inverter technology, Wi-Fi enabled, energy efficient
KoolAir 12K Wall Mount	12,000	11.0	53	Lightweight, easy install, good for smaller RVs

Each of these models has its strengths. The Dometic Penguin II is a favorite among full-timers for its quiet operation and low profile. The RecPro Mini-Split is ideal for off-grid RVers thanks to its inverter technology and Wi-Fi controls. And the Airxcel Coleman model offers solid performance at a budget-friendly price.

Maintaining Your Wall Mount RV Air Conditioner

Even the best air conditioner won’t last long without proper care. Regular maintenance not only extends the life of your unit but also ensures it runs efficiently and keeps you cool when you need it most.

Clean the Filters Monthly

Dirty filters restrict airflow, forcing the unit to work harder and use more energy. Most wall mount units have washable filters that can be removed and cleaned with mild soap and water. Let them dry completely before reinstalling. Set a reminder on your phone to check them every month—especially during heavy use.

Inspect the Outdoor Unit

The condenser coils on the outdoor unit can collect dirt, leaves, and debris. Use a soft brush or vacuum to gently clean the coils. Avoid using a pressure washer, as it can damage the fins. Also, make sure there’s at least 12 inches of clearance around the unit for proper airflow.

Check the Drain Line

Condensation from the evaporator coil drains through a hose, usually exiting near the bottom of the unit. Over time, this line can clog with algae or mold. Flush it with a mixture of water and vinegar every few months to keep it clear. If you notice water pooling inside the RV, the drain may be blocked.

Schedule Annual Professional Service

Once a year, have a technician inspect your system. They’ll check refrigerant levels, test electrical connections, and ensure everything is running smoothly. This is also a good time to recalibrate the thermostat or replace worn parts.

Winterize Properly

If you store your RV in cold climates, protect your AC unit from freezing temperatures. Cover the outdoor unit with a breathable cover to prevent ice buildup, and disconnect the power. Some owners also use a small heater or insulation blanket for extra protection.

Final Thoughts: Is a Wall Mount RV Air Conditioner Right for You?

Choosing the right cooling system for your RV is a big decision—one that affects your comfort, energy use, and even your travel lifestyle. A wall mount RV air conditioner offers a compelling alternative to traditional rooftop units, with benefits like quieter operation, better efficiency, and more usable roof space. Whether you’re a full-time RVer, a weekend camper, or building your dream tiny home on wheels, this upgrade could be exactly what you need to stay cool and comfortable on the road.

Of course, no system is perfect. Wall mount units require more planning and installation effort, and they may not be compatible with every RV layout. But for many owners, the trade-offs are well worth it. With the right model, proper installation, and regular maintenance, a wall mount AC can deliver years of reliable, quiet cooling—so you can focus on what really matters: enjoying the journey.

So, is it time to make the switch? If you’re tired of noisy nights, high energy bills, or a cluttered roof, the answer might be yes. Take the time to research your options, consider your power needs, and don’t hesitate to consult a professional. Your future self—cool, comfortable, and relaxed—will thank you.

Frequently Asked Questions

What is the best wall mount RV air conditioner for hot climates?

The best wall mount RV air conditioner for hot climates is one with a high BTU rating (13,500–15,000), like the Dometic Brisk II or Advent Air models. These units provide powerful cooling and efficient performance even in extreme heat.

Can I install a wall mount RV air conditioner myself?

Yes, many wall mount RV air conditioners are designed for DIY installation with clear instructions and mounting hardware included. However, professional installation is recommended if you’re unsure about electrical or structural requirements.

How does a wall mount RV air conditioner differ from a rooftop unit?

A wall mount RV air conditioner saves rooftop space and reduces wind resistance, while rooftop units require roof penetration and can affect aerodynamics. Wall-mounted models also offer easier access for maintenance and quieter operation.

Are wall mount RV air conditioners energy efficient?

Yes, many modern wall mount RV air conditioners feature Energy Star ratings and variable-speed compressors to reduce power consumption. They’re ideal for use with solar setups or generators due to their lower amp draw.

What size wall mount RV air conditioner do I need?

Choose a unit based on your RV’s square footage: 13,500 BTU for up to 250 sq ft and 15,000 BTU for larger spaces. Always check the manufacturer’s sizing guide for optimal performance.

Do wall mount RV air conditioners work in humid conditions?

Yes, high-quality wall mount RV air conditioners include dehumidifying features to maintain comfort in humid environments. Look for models with adjustable thermostats and moisture control settings for best results.