Understanding the Basics of a Ductless AC System

March 7, 2023
Ductless Mini-Split in Royal Oak, MI

Homeowners are always looking for ways to keep their homes comfortable during the hot summer months. One of the most popular solutions is a ductless air conditioning system, or a “mini-split” system. But what exactly is a ductless AC system? How does it work? And why should you consider one for your home? Let’s take a look at what these systems are and how they can help make your home more comfortable.

What Is a Ductless AC System?

A ductless air conditioner, also known as a mini-split system, is an easy way to heat and cool one or multiple rooms in your home without the need for extensive ductwork installation. It consists of two main components: an outdoor compressor unit and at least one indoor air handler unit that mounts directly on the wall or ceiling. The outdoor compressor unit houses the condenser fan, evaporator coil, expansion valve, and other important components that are necessary for cooling your home.

The indoor air handler contains the blower fan, evaporator coil, thermostat, heating element (for heating), temperature controls, filter(s), drain pipe, etc. This air handler can be installed in any room of the house to provide cooling and/or heating to that space independently from all other rooms.

How Does It Work?

A ductless AC system works much like any other type of air conditioning system in that it uses refrigerant to move heat from inside your home to outside where it can dissipate into the atmosphere. The difference with a ductless AC system is that there are no large ducts running throughout your home like with traditional central air systems. Instead, there’s just a small line connecting each indoor air handler with its respective outdoor compressor unit.

When you turn on the thermostat in one room of your home (or multiple rooms if you have multiple indoor units installed), the compressor will kick on outside and force refrigerant through this line into the indoor unit(s) where it will then be used to cool down or heat up the area depending on which mode is selected. Once this process has been completed and all desired areas have been cooled/heated appropriately, then the indoor units will shut off while only leaving the outdoor compressor running until more cooling/heating is needed again.

The Benefits of a Ductless AC System

Ductless AC systems are becoming increasingly popular due to their wide range of benefits. Let’s look at some of the reasons why a ductless AC system might be just what you need.

Low Maintenance

One of the most attractive features of a ductless AC system is that it requires very little maintenance compared to traditional air conditioning systems. Since there is no need for bulky ductwork, there is less equipment and fewer components that need regular maintenance and cleaning. Additionally, since the components are more compact and contained within the same unit, they are better protected from dirt and debris buildup, which can lead to poor performance or breakdowns.


While initially they can be more expensive than traditional systems, over time, ductless AC systems can be more cost-effective due to their energy efficiency and the typically lower maintenance needs. This means that while you may pay more upfront for the unit itself, you will save money on your energy bills due to its superior efficiency rating. Furthermore, since there are fewer components involved in setup and installation, labor costs associated with installing a ductless AC system tend to be lower as well.

Quiet Operations

When it comes to keeping your space cool, ditch the noisy window AC unit and opt for a ductless AC System. Not only is it a cost-effective way to have complete control over the temperature in any room of your house, but it also offers quiet operation with its built-in filter system. This means you can have an undisturbed, peaceful environment while keeping cool. Enjoy maximum comfort without all the noise that comes along with a traditional window air conditioner.

Flexible and Adjustable

A ductless air conditioning system can be installed nearly anywhere in your home. The individual units are relatively small, making them ideal for rooms or areas where traditional air conditioning systems won’t fit. They also usually require less installation time than other types of air conditioners, meaning you won’t have to wait long before your home becomes more comfortable.

Another advantage of a ductless AC system is that it can be adjusted to meet the needs of specific areas in the home. Because each unit is independently controlled, temperatures throughout the house can be adjusted easily according to individual preference. This helps reduce energy costs by only cooling or heating areas that are being used at any given time.

Adaptable and Efficient

A ductless AC system is incredibly adaptable, making it a great addition to any home. Ductless units come with both an indoor and outdoor unit that can be split apart to suit your needs. From bedrooms to sunrooms, these systems can be easily installed into almost any space and achieve efficient cooling without having to pour valuable resources into expensive ducts.

Furthermore, fewer components make them more efficient than traditional AC systems, so you will be saving not only money but also energy in the long run. All in all, when considering a cooling solution for your home, a ductless AC system should certainly be on the table due to its vast flexibility, efficiency, and affordability.


Keeping your ductless AC system properly maintained is essential for it to work at its best and maximize the energy efficiency of your home. If you want to ensure that your system is running optimally, you should have it professionally maintained by someone who is experienced in this type of system — an HVAC technician.

A professional can help identify any potential problems before they occur, such as leaks in the lines, blocked coils, or a build-up of debris, and repair them as quickly as possible. They can also check the refrigerant levels and make sure they are at their optimal performance level, so you won’t be unnecessarily wasting energy. Maintenance also includes cleaning off any dust buildup or dirt on the unit’s casing and on the filters to prevent any issues with indoor air quality.

Get in Touch With Professionals Today!

At C & C Heating & Air Conditioning, we know that having reliable cooling, heating, and indoor air quality services matters to you. That’s why we proudly serve Detroit and surrounding communities in Macomb County, Oakland County, Washtenaw County, and Wayne County with 24/7 emergency services. Whether you need an urgent repair or replacement for a system in your home or business, you can count on us to respond quickly so that you can get back to comfort and safety. We achieve this by having an experienced team of technicians who are well-versed in the latest technologies and techniques. With each service call, we offer reliable solutions at competitive rates while providing excellent customer service as well. Call C & C Heating & Air Conditioning today to learn more about our services.

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