Air Conditioning

Stay Cool Wherever the Road or Water Takes You

Whether you're parked in the desert heat at a summer campsite or anchored in a sun-drenched harbor, a reliable air conditioning system is essential to comfortable life aboard an RV or boat. Unlike residential units, RV and marine air conditioners are purpose-built to withstand the vibrations of the road, the corrosive effects of saltwater, and the power constraints of shore power or a generator. Choosing the right system means understanding BTU capacity, installation type, energy efficiency, and how each unit fits your specific vessel or rig.

How RV & Marine Air Conditioning Works

Air conditioning systems for RVs and boats function similarly to home units — they remove heat and humidity from the interior air using a refrigerant cycle — but they must do so in compact, lightweight packages designed for mobile environments. Rooftop air conditioners are the most common RV solution, mounting over a standard 14"x14" roof vent opening and distributing cooled air through a ceiling assembly or duct network. Marine systems, on the other hand, often use self-contained water-cooled units that draw cooler seawater or lake water to reject heat — a highly efficient approach well-suited to boats and yachts.

Cooling capacity is rated in BTUs (British Thermal Units), and matching the right capacity to your space is critical. More powerful air conditioners are needed for larger RVs with more internal space , and it is not uncommon that larger RVs may need more than one air conditioning unit to cool the entire vehicle. For marine applications, two key factors to consider are performance and energy efficiency.

Key Considerations When Shopping

• BTU Rating: Match cooling output to your interior square footage. Most RV units range from 11,000 to 15,000+ BTU, while marine systems can scale much higher for larger vessels.
• Ducted vs. Non-Ducted: Ducted systems distribute air through ceiling vents for even cooling throughout; non-ducted units blow directly into the space below, ideal for single-zone setups.
• Heat Pump Option: Many units double as heat pumps, providing year-round climate control without a separate heating system.
• Profile Height: Low-profile rooftop units reduce aerodynamic drag on the road, improving fuel efficiency.
• Power Supply: Consider your available power source — shore power, generator, or even off-grid battery systems — when choosing an appropriately sized unit.

Top Brands in RV & Marine Air Conditioning

Dometic is the dominant name in both RV and marine air conditioning. Dometic's air conditioner dominance of the marine AC market is the result of more than 60 years of experience building units in America under the Cruisair and Marine Air brands. On the RV side, the brand's Brisk Air, Penguin II, and FreshJet product lines cover everything from standard rooftop units to ultra-low-profile designs. Dometic provides complete climate systems, available in a variety of capacities, all of which are designed for fast and easy retrofitting.

Furrion has quickly established itself as a technology-forward challenger in the RV AC market with its Chill product line. Engineered with cutting-edge variable speed compressors, the Furrion Chill Cube RV air conditioner revolutionizes cooling efficiency and minimizes operational noise. All Furrion Chill models are reinforced with Climatesmart™ and Vibrationsmart™ technology to withstand extreme temperatures and rough terrain.

Coleman (Coleman-Mach) is one of the most storied names in RV climate control. Starting with the first RV air conditioners produced by the Coleman Co. in 1967, the Coleman-Mach brand has a proud heritage of quality, service, and innovation, earning a reputation for producing high-quality products with long-lasting consumer value. Coleman-Mach air conditioners can be installed on all kinds of recreational vehicles including Class A, B, and C motorhomes, 5th wheels, towable trailers, pop-ups, and truck campers, as well as specialty vehicle and marine applications.

GE Appliances brings its household brand recognition and appliance engineering expertise to the RV air conditioning market, offering rooftop units that include heat pump capability and appeal to RVers who appreciate a familiar name backed by broad service support.