GREE EcoCool 15K BTU
Van AC Installation
15,000 BTU of rooftop cooling — enough to tame a Sprinter 170EXT in an Arkansas August. Professional van AC installation with sealed roof cuts, dedicated electrical, and a unit purpose-built for van conversions.
Why Air Conditioning Matters for Van Life
A van without air conditioning is a van with a season limit. From May through October across the southern half of the United States — Texas, Arkansas, Arizona, the Gulf Coast, the entire Southeast — interior temperatures in an unventilated metal box climb past 120°F in direct sun. A MaxxAir fan helps move air, but when the ambient temperature is 98°F at midnight in Houston, moving hot air around is not cooling. You need mechanical refrigeration. You need actual AC.
Sleeping comfort is the most obvious reason — and the one most van builders underestimate until their first July night parked anywhere south of Denver. But there are others. If you travel with pets, AC isn't a luxury — it's a safety requirement. Dogs overheat fast in enclosed vehicles, and no amount of cracked windows or ventilation fans changes the physics. If you work remotely from your van, trying to focus on a laptop when your hands are slick with sweat and the cabin temperature is pushing triple digits isn't productivity — it's suffering. And if you're building a van that costs five or six figures, limiting it to fair-weather use because you skipped the AC doesn't make financial sense.
The right AC system transforms your van from a three-season vehicle into a genuine year-round home. Paired with an Espar or Webasto diesel heater for winter and a MaxxAir fan for shoulder-season ventilation, you have a complete climate system that handles every condition — from below-zero mountain mornings to August afternoons parked at a trailhead in the Ozarks.
GREE EcoCool 15K BTU — Built for Vans
The GREE EcoCool is a 15,000 BTU rooftop air conditioning unit that runs on standard 120V power — shore power at a campground, a generator, or a sufficiently sized inverter system. Fifteen thousand BTU is not a marketing number — it's the cooling capacity required to bring a large conversion van, including a Sprinter 170" extended wheelbase, from sweltering to comfortable in real-world conditions. Smaller units — the 5,000 and 8,000 BTU portable units that show up in van life forums — can take the edge off in mild heat, but they cannot overcome 100°F ambient temperatures in a metal-skinned vehicle parked in the sun.
The GREE EcoCool is purpose-built for the van and RV market. The compressor is a proven rotary design that handles the vibration, tilt angles, and temperature swings that vehicle-mounted units face — conditions that would destroy a residential window unit within a season. The low-profile rooftop housing minimizes the height addition to your van, keeping your overall clearance as close to stock as possible. This matters when you're navigating parking garages, drive-throughs, and campsite overhangs that weren't designed for vehicles with rooftop appliances.
The interior ceiling assembly distributes cooled air across the cabin through adjustable vents, and the integrated controls let you set and maintain a target temperature — not just blast cold air and hope for the best. The unit also provides dehumidification, which matters more than most people realize. In humid climates, removing moisture from the air makes a 78°F cabin feel dramatically more comfortable than 78°F with 90% humidity. It's not just about temperature — it's about livability.
15,000 BTU Capacity
Enough cooling power for the largest Sprinter 170EXT or Transit high-roof conversion. No compromises in triple-digit heat.
120V Operation
Runs on shore power, generator, or a properly sized inverter system. Standard 120V means no exotic electrical requirements.
Low-Profile Rooftop Mount
Minimizes height addition to your van. Navigate parking garages and campsite overhangs without worrying about clearance.
Vehicle-Grade Compressor
Rotary compressor engineered for vibration, tilt, and temperature extremes. Built for the road, not a bedroom window.
Thermostat Control
Set a target temperature and maintain it. Intelligent cycling that keeps the cabin comfortable without constant manual adjustment.
Built-In Dehumidification
Removes moisture while cooling. In humid southern climates, dehumidification is half the battle for interior comfort.
Shore Power vs. Inverter Operation
The GREE EcoCool runs on 120V AC power, which means you have two primary ways to feed it: shore power (plugging into a campground pedestal or any standard outlet) and inverter power (converting your 12V battery bank to 120V through an inverter). Each approach has its place, and understanding the trade-offs helps you plan your build and your travel style.
Shore power is the simplest and most common scenario. When you're parked at a campground, RV park, or any location with 120V outlets, you plug in and the EcoCool runs indefinitely — no battery drain, no power management, no limits. This is the setup most van owners use for extended stays, workweek parking, and any time you're near infrastructure. Many van lifers spend the majority of their nights at campgrounds or parking spots with shore power access, making the EcoCool a practical, straightforward cooling solution.
Running the EcoCool off an inverter is possible but requires a serious electrical system — a large lithium battery bank (typically 400Ah or more), a 3,000W+ pure sine wave inverter, and robust charging from solar and alternator sources. The unit draws approximately 12–15 amps at 120V during compressor operation, which translates to significant 12V battery consumption. This setup works for overnight cooling runs and targeted use, but it's not a replacement for unlimited shore power. During your consultation, we'll size your electrical system based on how and where you plan to use AC — and whether a 12V battery-powered unit like the Velit 2000R might be a better fit for your off-grid needs.
Shore Power Operation
Plug into any campground pedestal or 120V outlet. Unlimited runtime, zero battery drain. The simplest and most common use case for van AC.
Inverter Operation
Run off your 12V battery bank through a 3,000W+ inverter. Requires a large lithium bank (400Ah+). Best for overnight cooling runs and targeted use.
Van AC Options at a Glance
The GREE EcoCool is our go-to recommendation for van owners who spend time at campgrounds, use shore power regularly, or have a generator setup. It delivers the most cooling per dollar and can handle any van size. But it's not the only path to cool air — and depending on how you travel, a different unit might make more sense for your build.
The Velit 2000R is a 12V battery-powered AC unit designed for off-grid use. It runs directly from your lithium battery bank without needing an inverter, making it electrically simpler and more efficient for boondocking. The trade-off is cooling capacity — the Velit produces roughly 7,000 BTU, which is enough for a well-insulated smaller van but won't overpower triple-digit heat in a 170" extended Sprinter. It's the right choice if you're primarily dispersed camping and rarely near shore power.
The OutEquip Pro is a 12V unit that adds a heat pump function — cooling in summer and supplemental heating in shoulder seasons. It's a compelling option for van owners who want year-round climate control from a single battery-powered unit. Like the Velit, it trades raw BTU output for electrical efficiency and off-grid independence. OZK installs all three units, and we'll help you choose the right one during your consultation based on your van size, travel patterns, electrical system, and climate priorities.
GREE EcoCool 15K BTU
120V rooftop AC. Maximum cooling power for any van size. Best with shore power or generator. The brute-force solution for serious heat.
Velit 2000R
12V battery-powered AC. ~7,000 BTU. No inverter needed. Ideal for off-grid boondocking in well-insulated smaller vans.
OutEquip Pro
12V with heat pump. Cooling and supplemental heating from one unit. Battery-powered year-round climate control for off-grid builds.
Stop Sweating — Start Cooling
Tell us about your van, your travel style, and your climate needs. We'll recommend the right AC unit, size your electrical system, and install it with a sealed roof cut that won't leak a drop.
Why Professional AC Installation Matters
Sealed Roof Cut
Cutting a 14" x 14" hole in your van roof is not a drill-and-pray operation. Our team uses precision templates, proper metal-cutting tools, and a multi-layer sealing process — butyl tape, Dicor lap sealant, and compression gaskets — that creates a waterproof bond tested against driving rain, pressure washers, and years of thermal cycling. A bad roof cut leaks. A leaking roof rots your insulation, shorts your electrical, and destroys your interior from the inside out.
Dedicated Electrical Circuit
The EcoCool draws up to 15 amps at 120V — enough to trip a shared circuit and enough to start a fire on undersized wiring. We run a dedicated circuit from your distribution panel with properly rated wire, weather-rated connections, and a dedicated breaker. The electrical is integrated with your overall power system so your AC, inverter, and shore power input all play nicely together.
Integrated Climate Planning
Your AC placement affects your fan placement, your solar panel layout, your roof rack configuration, and your interior ceiling finish. We plan the entire rooftop as a system — the EcoCool, your MaxxAir fan, your solar array, and any other roof-mounted equipment are positioned to avoid interference and maximize performance. DIY installs routinely block fan openings, shade solar panels, or conflict with rack crossbars.
Warranty & Accountability
Professional installation protects your GREE manufacturer warranty and gives you a single point of contact if anything needs attention. If the unit develops an issue, if a seal needs reapplication after thermal cycling, or if you want to add a diesel heater later — one shop, one team, one phone call. No finger-pointing between your YouTube tutorial and a manufacturer's warranty department.
The Installation Process
Consultation & Sizing
We review your van model, insulation level, travel style, and electrical system. Based on your needs, we recommend the right AC unit and plan the electrical requirements — shore power hookup, inverter sizing, or both.
Roof Prep & Cut
Precision roof opening cut to manufacturer specs. Metal edges treated, sealed, and prepped with butyl tape and Dicor sealant. The cut placement is coordinated with your fan, solar, and rack layout.
Mount & Wire
The EcoCool unit is mounted and sealed to the roof with compression gaskets. Dedicated 120V circuit wired from the distribution panel with proper gauge wire, weatherproof connections, and breaker protection.
Test & Commission
Full system test — cooling output verified, thermostat calibrated, electrical load confirmed. Roof seal water-tested. You get a walkthrough of operation, maintenance, and best practices for your specific power setup.
AC installation pairs perfectly with Espar/Webasto diesel heater and MaxxAir fan installs — ask about a complete climate package.