February 20, 2023
Ductless AC System in Sacramento, CA

Ducted and ductless mini-split air conditioning systems are climate control options in residential and commercial buildings. They offer efficient and reliable temperature regulation, but key differences make one more suitable than the other in certain circumstances. Ducted air conditioners are ideal for large-scale, centralized systems throughout the building. Air is collected from the space and cooled before being distributed to individual rooms through ducts.

Ductless systems are suitable for smaller areas such as single rooms or apartments. These mini-split units consist of an outdoor compressor and one or more indoor air handlers connected by conduit and tubing. The main factors to consider when deciding between a ducted and ductless air conditioner are cost, energy efficiency, climate control, and installation requirements.

Ducted Air Conditioning Systems

Ducted air conditioning systems provide a cost-effective and energy-efficient solution to cool or heat homes or commercial buildings. These systems feature an indoor unit connected to an outdoor compressor installed outside the building. They use ductwork that branches out from the indoor unit, allowing air to be distributed throughout the building.

Ducted systems are quieter than other air conditioners and require less maintenance than other cooling and heating systems. Many ducted air conditioning systems have additional features such as temperature zoning, humidity and air quality regulation, and energy-saving modes. These features allow users to customize their climate control experience to suit their needs.

Different Types of Ducted Air Conditioning Systems

There are various types of ducted air conditioning systems, each with advantages and disadvantages. Common types include the split system, central system, and multi-split system.

Split System

Split system air conditioning is becoming increasingly popular due to its energy efficiency, ease of installation, and ability to provide zoning control. Split systems comprise two units: an outdoor condenser unit and an indoor evaporator unit. These are connected by copper piping for a tailored cooling experience. Split systems are great for cooling individual rooms or particular areas, meaning that you don’t have to cool the whole house like you would with ducted air conditioning systems. Split systems are less expensive than Installing other systems, which require connections from every room involved. Split systems can also be installed on external walls as part of a home renovation or in low-roof spaces as part of smaller construction projects.

Central System Central systems are a type of ducted air conditioning system designed explicitly for large households and commercial buildings. The system consists of a single outdoor condenser unit connected to multiple evaporator units inside the building. Central systems are highly effective in efficiently distributing cooled air throughout the home or structure, as each indoor unit is designed to circulate refrigerant gas to cool its designated area. This setup uses less electricity with fewer outside condensing units than traditional split system models with multiple outdoor units. Central systems can also be more efficient regarding zoning, allowing different temperature settings within each room even when they are all connected through one system.

Multi-Split System

Multi-split systems provide it all — the convenience of a central air conditioning system and the flexibility of multiple indoor units. Multi-split systems are an excellent option for larger areas needing temperature control, as these systems have multiple outdoor condenser units that connect to multiple indoor evaporator units. Multi-split systems also offer greater design flexibility than traditional ducted systems, making them suitable for many applications. They allow homeowners to tailor their heating and cooling requirements to specific zones in their homes or businesses while lowering running costs and energy consumption. Multi-split air conditioning systems offer the ideal solution for any large space that needs efficient climate control.

Pros and Cons of Ducted Air Conditioning Systems

Let’s explore the pros and cons of having ducted AC systems.


Ducted air conditioning systems are incredibly energy efficient, allowing you to save money on your electricity bills. They also operate quietly and won’t disrupt the peace of your home or office environment. With ducted air conditioning systems, you can control the temperature in different zones of your house separately, so everyone is comfortable no matter where they are in the building. Additionally, ducted air conditioners are designed with longevity in mind and will last longer than most other HVAC solutions. If properly maintained throughout their lifetime by professional technicians who know how to keep them running at peak performance levels all year round.


Ducted air conditioning systems can be costly, and installation can be complex due to the need for large ducts to be installed throughout the home. They also have limited control compared to other systems, such as split-systems, multi-head, and wall-mounted systems.

Ductless Air Conditioning Systems

Ductless air conditioning systems, also known as mini-splits, are an efficient and cost-effective way to keep your home comfortable. They provide the same cooling capabilities as traditional central AC units but without the need for bulky ductwork. Instead, they use a small outdoor compressor and multiple wall-mounted indoor units. Cooling is supplied directly to each area, offering more flexibility and zonal control than a ducted system. This flexibility makes them well-suited for renovations or additions to existing buildings, as they do not require any modification of the existing ductwork.

Types of Ductless Air Conditioning Systems

There are two kinds of ductless AC systems: wall-mounted and floor-mounted ones. Wall-mounted mini-splits are an increasingly popular type of ductless air conditioning system. They consist of a small outdoor compressor unit connected to multiple wall-mounted indoor units inside the home. Wall-mounted mini-splits offer a variety of features, such as a built-in air filter and dehumidifier, allowing you to customize the temperature and humidity levels in your home. They also come with multiple fan speeds, allowing you to adjust airflow based on individual cooling needs.

Floor-mounted mini-splits provide a perfect combination of convenience, comfort, and affordability with outstanding services. They look attractive with their ultra-slim profile design, and they can be concealed discreetly due to their sculptured design, making them superiorly versatile for both traditional and modern settings. Floor-mounted systems provide maximum cooling capacity and energy efficiency along with added features such as multiple operational modes, sleep modes, fan speed control, and more. They also offer excellent air conditioning and minimal maintenance costs, thus making it ideal for everyone who wants to save on air conditioning while enjoying all the advantages that come with it.

Pros and Cons of Ductless Mini-Splits

Here are the pros and cons of using ductless mini-splits.


Designed for flexibility, ductless mini-splits can be installed in any room and provide cooling or heating to the specific area where they are located. They also offer a reduced carbon footprint due to the absence of ducting and large condenser units. These systems utilize innovative technology, such as inverters, to enable the compressor to speed up or slow down per demand.

Installing a ductless system is relatively easy compared to other air conditioning systems and requires minimal disruption to walls or ceilings for it to work correctly. Additionally, with a ductless system, you can control the temperature of each room separately, allowing you to customize the climate in different areas of your home as needed without having to adjust settings throughout the entire house at once.


The indoor units are mounted on the wall and can be quite visible in a room. Also, the initial installation cost of ductless mini-splits is significantly higher than window units, central air conditioners, or packaged terminal air conditioners.

At Gallagher's Plumbing, Heating and Air Conditioning, we can help you decide which system is best for your needs. We specialize in both ducted and ductless air conditioning systems. Our team of qualified and certified technicians can provide you with quality installation, repair, and maintenance services for your heating and cooling needs. We also handle plumbing, water heaters, indoor air quality, and duct cleaning. We’ve proudly served the Northern Valley and the Greater Sacramento area for over 30 years. Contact Gallagher's Plumbing, Heating and Air Conditioning today to schedule an appointment.

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