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Writer's pictureAndrea Ryan

Upgrading Your Boat's Air Conditioning: When and Why to Consider a Split System

When it comes to boating, comfort and functionality are paramount. A well-functioning air conditioning system can make all the difference, particularly in warmer climates where heat and humidity can make a day on the water less enjoyable. If you’re considering an upgrade to your boat’s air conditioning system, it’s worth exploring the benefits of split system air conditioners. These systems, offered by top-tier brands like CTM and Dometic, provide a host of advantages that make them a compelling choice for many boat owners.


In this post, we’ll break down what split system air conditioners are, their benefits, and the scenarios in which upgrading to one might be the best choice for your vessel. We’ll also highlight how S & S Dockside Marine Supply can help you navigate your upgrade journey.


Choosing a split system a/c system for your boat can lead to the most comfortable rides and energy efficient system.

What is a Split System Air Conditioner?

Split system air conditioners consist of two main components:


  1. Condensing Unit: Typically installed in a remote, ventilated location like the engine room, this unit contains the compressor and condenser.

  2. Air Handler: Located in the living or cabin areas, the air handler includes the evaporator coil and blower, which distribute cool air.


The two components are connected via refrigerant lines and electrical wiring, making the system “split” compared to compact or self-contained units where all components are housed together.


Advantages of Split System Air Conditioners for Boats

Split systems offer a range of benefits that make them a superior choice for certain boating scenarios:


1. Superior Cooling Performance

Split systems are designed to provide efficient and effective cooling, even in larger or multi-cabin vessels. By separating the condensing unit from the air handler, the system can focus on delivering powerful, consistent cooling without overburdening the equipment. Brands like CTM Marine and Dometic are known for their high-performing split systems that keep even the most demanding environments comfortable.


2. Reduced Noise Levels

One of the standout features of split systems is their quiet operation. With the noisy condensing unit installed away from living spaces, you’ll enjoy a peaceful environment in your cabin or lounge area. This is especially beneficial for overnight stays on your boat, where the hum of a self-contained unit can disrupt sleep.


3. Space-Saving Design

By splitting the components, these systems can be installed in a way that optimizes available space. The condensing unit can be tucked away in an unused area, while the air handler’s compact design allows for seamless integration into cabins or other living areas. This makes split systems ideal for boats where space is at a premium.


4. Customizable Cooling Zones

Split systems allow for multiple air handlers connected to a single condensing unit. This means you can create distinct cooling zones within your boat, tailoring the temperature in different areas to meet varying comfort needs. For example, the cabin can stay cool while the galley remains at a slightly higher temperature.


5. Energy Efficiency

Split systems are often more energy-efficient than self-contained units. By placing the condensing unit in a ventilated location, the system can operate more efficiently, reducing strain and energy consumption. Leading brands like Dometic have engineered their split systems to maximize performance while minimizing power usage.


6. Durability and Longevity

The separation of components reduces wear and tear, as each unit operates in an optimal environment. This not only extends the lifespan of the system but also lowers maintenance costs over time. CTM Marine split systems are renowned for their robust build and long-lasting performance, even in harsh marine conditions.


When Should You Upgrade to a Split System?

While split systems offer numerous advantages, they’re not always the right choice for every boat. Here are some scenarios where upgrading to a split system is particularly beneficial:


1. You Own a Larger Vessel

For boats with multiple cabins or large interior spaces, self-contained units may struggle to provide adequate cooling. Split systems excel in larger vessels, offering zoned cooling and higher BTU capacities to handle the increased load.


2. You Value Quiet Operation

If noise is a concern, particularly during overnight trips, a split system’s quiet operation can significantly enhance your onboard experience. This is especially important for family trips or when entertaining guests.


3. You Need Customizable Cooling Zones

Boats with multiple living areas can benefit from the ability to set different temperatures in various zones. For example, a split system allows you to cool the helm area while keeping other areas warmer, reducing unnecessary energy usage.


4. Your Current System is Outdated or Inefficient

Older self-contained units may lack the energy efficiency and cooling power of modern split systems. Upgrading can lead to noticeable improvements in comfort and reduced operating costs.


5. You Have Limited Space for Equipment

If space constraints are preventing you from installing a more powerful self-contained unit, a split system’s flexible design can offer a practical solution. The remote placement of the condensing unit frees up valuable onboard space.


Choosing the Right Split System

When selecting a split system air conditioner, it’s essential to consider:


  • BTU Capacity: Ensure the system has enough cooling power for your boat’s size and layout.

  • Energy Efficiency: Look for systems with high energy efficiency ratings to reduce operating costs.

  • Reliability: Choose reputable brands like CTM Marine or Dometic for proven performance and durability.

  • Installation Requirements: Consult a professional to determine the best placement for the condensing unit and air handlers, as well as the feasibility of refrigerant line runs.



Why Choose S & S Dockside Marine Supply for Your Upgrade?

Upgrading to a split system air conditioner is a significant investment in your boat’s comfort and functionality. At S & S Dockside Marine Supply, we’re committed to helping you make informed decisions about your marine HVAC needs. With a wide selection of CTM Marine and Dometic products, we’re your trusted source for high-quality marine air conditioning solutions.


Our experienced team can guide you through the selection process, ensuring you choose the right system for your vessel. Whether you’re a seasoned boater or new to the marine lifestyle, we’re here to provide expert advice, top-notch products, and unparalleled customer service.


Final Thoughts

Upgrading your boat’s air conditioning system to a split system offers a host of benefits, from improved cooling performance and quiet operation to energy efficiency and customizable comfort. Whether you’re navigating warm coastal waters or enjoying a weekend on the lake, a split system can elevate your onboard experience.


When you’re ready to make the switch, turn to S & S Dockside Marine Supply for the best in marine air conditioning systems. With our extensive selection of CTM Marine and Dometic products and our commitment to customer satisfaction, we’ll help you upgrade your boat to the comfort level you deserve.


Ready to get started? Visit S & S Dockside Marine Supply today to explore our offerings and take the first step toward enhanced onboard comfort!


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