If you plan to use a campervan during the summer months, keeping the interior of your vehicle cool will be one of your top priorities. On a hot day, parking in the shade and opening the windows may not be enough to keep your van sufficiently comfortable. If you want to install an air conditioner in your campervan, there are many models and designs to choose from.
And if you’re not sure where to look, don’t stress—Van Builder HQ is here to help!
In today’s guide, we’re going to take a closer look at some of the best air conditioner units for a campervan and provide you with all the information you need to make the right decision for your build. Let’s get started!
Top Pick (Updated): Velit 2000R Series
Price: ~$1,829
BTU: Up to 8,000 BTU
Voltage Options: 12V, 24V, 48V
If you’re looking for excellent cooling performance and versatility at a more accessible price point, the Velit 2000R is now our top recommendation. This unit offers a great balance of performance, cost, and flexibility for off-grid setups.
Why we love it:
- Higher cooling capacity (up to 8,000 BTU)
- Multiple voltage options for different battery setups
- Lower price compared to the RTX 2000
- A compact Velit Mini version is also available, ideal for maximizing rooftop space with solar panels
⚠️ One caveat: Velit’s service network is not as established as Dometic’s. Parts may not be as easy to source, so consider this a high-value unit with potential long-term replacement needs.
Still a Great Option: Dometic RTX 2000
Price: ~$2,499
BTU: 6,824
Voltage: 12V
While the RTX 2000 is no longer our top pick, it still earns high marks for reliability and customer support. Dometic has a widespread service network, making it easier to find replacement parts or get repairs through certified RV dealerships. If you want peace of mind and know you’ll need support long-term, the Dometic remains a great choice.
How to Choose the Best Air Conditioner for Your Campervan
Efficiency
If you’re running off-grid power, 12V air conditioners like the Velit or Dometic RTX are your best bet. They connect directly to your battery bank, avoiding power losses from inverters. The Velit 48V model is especially efficient if you’re running a 48V system like the EcoFlow Power Kit.
Cooling Capacity (BTU)
More BTUs = more cooling. The Velit 2000R offers up to 8,000 BTU, while the Dometic RTX 2000 tops out at 6,824 BTU. For midsize to large vans, 7,000–8,000 BTU is a good range to aim for.
Noise Level
Both Velit and Dometic units run relatively quietly at low speeds. If nighttime comfort is a concern, consider adding insulation or using the unit’s eco-mode settings.
Durability
Dometic shines here due to its proven track record and easy-to-source replacement parts. Velit is newer to the market, so its long-term durability is promising but less proven.
Design and Size Considerations
Velit offers multiple unit sizes, including a Velit Mini with compact dimensions (26.4″ x 26″ x 6.5″)—perfect if you want to flank it with slim solar panels. Dometic, on the other hand, only offers one model size.
Pro Tip: Pair a Velit Mini with a Unaka Gear roof rack and two Rich Solar 200W slim panels (each 15.7″ wide) to fully maximize your rooftop real estate.
Ease of Installation
Both units require roof cutting and sealing, so proper planning is critical. Dometic provides robust installation support and documentation. Velit’s installation is straightforward, but documentation may be less detailed.
Types of Campervan Air Conditioners
Ducted Air Conditioners
Not commonly used in vans. If space and complexity aren’t concerns, the Cruise N Comfort 12V is a ducted option worth considering.
Non-Ducted Air Conditioners
The most common and recommended for vans. These self-contained units pull and return air internally. Both the Velit and Dometic RTX 2000 are top-tier non-ducted, 12V options.
Rooftop Air Conditioners
While many rooftop units are designed for larger RVs (requiring 120V), the Velit 2000R and Dometic RTX 2000 break that mold with 12V capabilities optimized for campervans. These units offer rooftop installation without the inefficiencies of a shore power-only setup.
Powering a Campervan Air Conditioner
If you’re off-grid:
- Go with a 12V or 48V unit like Velit or Dometic RTX
- Make sure your solar and battery setup can handle it (e.g., 300Ah+ battery bank)
If you’re plugged into shore power often:
- You can opt for 120V rooftop units, but remember they won’t run off batteries efficiently
For maximum off-grid performance, a 48V Velit system offers exceptional efficiency—ideal if you’re running a larger lithium system or a power kit from EcoFlow or Bluetti.
Maintenance Tips
- Inspect for leaks around the mounting seal at least once a year
- Clean condenser coils with foaming spray annually
- Check and clean air intake filters every 1–2 months to prevent icing
Tips to Keep Your Van Cool (With or Without AC)
- Install a roof vent fan to improve airflow
- Use portable 12V fans to circulate air
- Invest in quality insulation for walls and ceiling
- Cover windows with reflective, insulated window shades
- Park strategically—use tree shade and position to reduce sun exposure
FAQs
How quiet are campervan air conditioners?
Most fall between 35 and 75 decibels. Dometic and Velit units run quieter at lower speeds, especially in eco mode.
What types of AC units are best for campervans?
12V rooftop ACs like Velit and Dometic are the gold standard for off-grid use. Avoid 120V units unless you always have shore power access.
Should you run a dehumidifier with an air conditioner?
No. AC units already remove moisture from the air as they cool. Running both wastes energy unnecessarily.
What’s the best portable camper AC?
The EcoFlow Wave 2 is a solid portable option with a 4,000 BTU output and optional battery pack for off-grid use.
Can solar panels power a campervan AC?
Yes, but you’ll need a sizable solar array (600W–1,000W) and a large battery bank to run it consistently. For example, a 12,000 BTU unit may draw ~900W/hour.
Final Thoughts
Whether you go with the Dometic RTX 2000 or the newer, more budget-friendly Velit 2000R, both are excellent 12V rooftop air conditioning options for campervan builds. Your choice depends on priorities:
- Choose Velit for higher BTUs, lower cost, and flexible sizing
- Choose Dometic for peace of mind, reliability, and better service support
Whichever route you take, plan your rooftop layout carefully—solar, vents, and AC all compete for space—and install with care for the best long-term performance.
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