Best AC for Camper Van - Geotrek Vans

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When summer temperatures rise, having effective air conditioning in your camper van can mean the difference between chill summer nights and sticky, uncomfortable ones. Whether you’re living in your van full-time, taking it out for weekend adventures, or planning a cross-country road trip, choosing the right air conditioning system is an absolute van life essential.

In this guide, we’ll dive into how different types of camper van air conditioners work, explore the best options available, and share tips for staying cool without relying heavily on power.

A Quick Note on How AC Works

Air conditioning units work by removing heat from the air inside your camper van and expelling it outside, leaving the interior cool and comfortable. The process involves a refrigerant that absorbs heat from the air inside the van and releases it outside through a series of coils and a fan. This continuous cycle of heat absorption and expulsion is what keeps the air inside your van cool. Understanding this basic principle will help you make an informed decision when choosing the best AC unit for your camper van (and help you maintain and repair yours when the time comes).

Different Types of Camper Van AC Units

Each type of AC system has its own set of advantages and drawbacks, so it’s important to choose one that aligns with your van’s size, your power setup, and how you plan to use your van.

1. Roof-Mounted AC Units

Roof-mounted AC units are installed on the roof of your camper van. These units pull in warm air from inside, cool it down using a compressor and refrigerant, and expel the heat outside. The cool air is then circulated back into the van, effectively lowering the interior temperature.

Pros:

High Cooling Capacity: Roof-mounted units are powerful, making them ideal for larger vans or extreme heat conditions.
Space-Saving: Since they’re installed on the roof, they don’t take up any interior space.
Efficient Cooling: These units are designed for RVs and vans, so they’re efficient at cooling larger areas quickly.

Cons:

Installation Complexity: Installing a roof-mounted AC can be complex and may require professional help. It also involves cutting a hole in the roof…enough said there.
Cost: These units can be expensive, both in terms of the initial purchase and the electricity required to run them.
Height and Clearance: Adding a roof-mounted AC increases the overall height of your van, which might cause clearance issues under low bridges or garages.

Best For: Full-time van dwellers in hot climates who have access to shore power or a robust battery setup and don’t mind the added height.

2. Portable AC Units

Portable air conditioners are standalone units that can be placed inside your van. They work by drawing in warm air, cooling it using refrigerant, and expelling the warm air through a hose that goes out of a window or vent.

Pros:

Ease of Use: No permanent installation is needed. You can set them up and start using them immediately.
Flexibility: Portable units can be moved around, allowing you to direct cool air where it’s needed most.
Lower Initial Cost: They are generally less expensive than roof-mounted units.

Cons:

Space Usage: Portable units take up valuable floor space, which can be a downside in smaller vans.
Venting Required: You need to run a hose out of a window or vent to expel hot air, which can be inconvenient.
Lower Power: They may not be as effective as roof-mounted units, especially in larger vans or extreme heat.

Best For: Van owners who need a flexible, less permanent solution and have a smaller budget. Ideal for part-time use, mild climates, or those who normally do van life in the winter.

3. Window AC Units

Window AC units are designed to fit into a window opening. They draw in warm air, cool it using refrigerant, and then blow the cooled air into the van while expelling the heat outside.

Pros:

Affordability: Window units are generally more affordable than roof-mounted ACs.
Effective Cooling: They are efficient and can cool small to medium-sized vans effectively.
Easy Installation: If your van has a suitable window, installation is relatively straightforward.

Cons:

Space and Aesthetics: They take up window space and can block natural light. They can also affect the van’s aesthetic look and aerodynamic profile.
Security: A window unit may pose a security risk if not installed securely.
Limited Placement: Requires a window that can accommodate the unit, which limits where it can be installed.

Best For: Budget-conscious van owners who want a simple, effective cooling solution. Suitable for small to medium-sized vans.

4. 12V Swamp Coolers (Evaporative Coolers)

Swamp coolers use evaporative cooling to reduce temperature. They work by drawing in warm air and passing it over water-soaked pads. As the air passes through, it evaporates the water, which cools the air before it’s blown back into the van. Swamp coolers for van life aren’t your typical swamp coolers. They’re much smaller.

Pros:

Low Power Consumption: These coolers use much less power than traditional AC units, making them ideal for off-grid living.
Cost-Effective: They are generally cheaper to purchase and operate.
Easy Maintenance: Swamp coolers are simple in design and easy to maintain.

Cons:

Humidity Limitations: They are less effective in humid climates since they add moisture to the air.
Less Powerful: Swamp coolers don’t cool as effectively as traditional air conditioners.
Water Usage: Requires a supply of water to keep the cooling pads wet.

Best For: Van lifers in dry, arid climates looking for a low-power cooling solution. Ideal for off-grid setups.

The Verdict: What’s the Best Air Conditioner for Van Life?

We’ve been living in and designing RVIA-certified van conversions out of Colorado for years. Our team, and many, many others, are of the opinion that roof-mounted AC units are the best AC option for van life by far.

Our favorite, and the one we use in our Geotrek vans, is the Nomadic X2 AC Unit. A few things we love about it:

Designed to fit an 14 x 14 opening (industry standard)
Does not require shore power or to be hooked up to the engine
Lightweight (only 44 lbs)
Super quiet when operating

Honorable Mentions

The VELIT 2000R 48V is another great option that also doesn’t require shore power or engine hookup. It is a little bit heavier than the Nomadic X2 at 66 lbs, and delivers fresh air as high as 126 degrees out!

Tips for Staying Cool Without Consuming Power

Use roof vents, windows, and fans to promote airflow. Proper ventilation can seriously reduce the need for air conditioning by expelling hot air and bringing in cooler air.
Insulating your van is key to maintaining a comfortable temperature. Reflective window covers and insulated curtains help keep the heat out, making your AC work less.
Find shaded parking spots whenever possible. Parking with the van’s doors and windows facing away from direct sunlight can also help reduce heat buildup.
These shades can be placed on the windshield and other windows to reflect the sun’s rays, reducing the interior temperature.
Take advantage of cooler evening temperatures by opening windows and doors to allow fresh air to circulate.
Drink plenty of water to stay cool, and consider using cooling towels or portable fans for personal comfort.

Stay Cool with Geotrek

Choosing the best air conditioner for your campervan is crucial for comfort during hot weather. Whether you opt for a roof-mounted unit, a portable AC, or a 12V swamp cooler, understanding the pros and cons of each type will help you make an informed decision.

And remember, staying cool isn’t just about the AC—implementing simple strategies like proper ventilation, insulation, and smart parking can make a big difference in your overall comfort. Stay cool, stay safe, and enjoy your van life adventures!