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What is a Mini-Split Duct System?

a person turning on mini-split with a remote

Energy efficiency, dual capabilities, and easy installation are just a few of the benefits of mini-split duct systems. Perfect for homeowners living in a house without ductwork, mini-split duct systems offer a level of convenience that can’t be found anywhere else.

If you have questions about mini-split duct systems, ACS has your answers. With decades of HVAC experience, our local air specialists offer exclusive industry insight and top-quality air conditioning services to optimize your home’s indoor air quality. For those considering a mini-split duct system for their home, this blog is for you. Read below for our comprehensive guide on mini-split duct systems. 

What is a Mini-Split Duct System?

A mini-split system, also known as a ductless system, is an air conditioner offering heating and cooling capabilities. These systems consist of two components: an outdoor compressor/condenser and an indoor evaporator, which are connected by refrigerant tubing and electrical wiring. The indoor unit is typically mounted onto the wall and delivers air directly into a room without need for ductwork travel. 

Mini-split duct systems function similarly to central air conditioners, as they both transfer heat from inside the home to the outdoors. However, they differ in their distribution of air into the house. Central air conditioners use one centrally located indoor unit to deliver cool air throughout the entire home through ductwork. In contrast, a mini-split duct system’s indoor unit blows cool air directly into one living area. 

What are the types of Mini-Split Duct Systems?

There are two different types of mini-split duct systems. What sets these types apart is the number of indoor units configured to the system. Your choice of mini-split duct system will depend on your property type and its heating and cooling needs. 

Single Zone

A single-zone ductless system has one indoor unit corresponding to one outdoor compressor. This mini-split type is ideal for heating and cooling one specific space without access to air ducts, such as a new home addition or an exterior room like a garage or workshop. 


A multi-zone ductless system has one outdoor compressor corresponding to up to six indoor units. Each indoor unit is controlled by a wireless remote control, allowing you to heat or cool individual living spaces individually. This option is ideal if you want to control air throughout your entire property rather than just a singular space. 

What are the Benefits of a Mini-Split Duct System?

Mini-split duct systems offer several benefits for HVAC owners. By eliminating the need for air ducts, mini-split systems offer more control and convenience than their traditional counterparts. Below are some of the mini-split duct system’s top benefits:

Individual Control

Multi-zone ductless systems give you individual control of each room’s heating and cooling. Whether you have family members bickering about changing the temperature or rooms in your home that are rarely occupied, a mini-split duct system will give you the solution you need.


Ductwork is a high-risk area for air loss. From leaks and holes to poorly connected ducts, a traditional system with ductwork is susceptible to poor energy efficiency. Mini-split duct systems eliminate this risk. Not to mention, they also allow for energy savings with their temperature control for individual rooms.

High-Quality Air

By eliminating air ducts, ductless systems also eliminate the need for air duct cleanup. Cleaning air ducts typically requires scheduling professional services, which can often fall at the bottom of a homeowner’s to-do list. Meanwhile, a mini-split system has an air filter that the homeowner can easily replace on their own. As a result, mini-split systems owners often experience more consistent, high-quality air. 

HVAC Heating and Cooling with ACS

At ACS, we are committed to helping you get the most out of your heating and cooling systems. Whether it’s repairs, replacement, installation, or routine maintenance, no heating job is too big or too small for our team of certified HVAC technicians. Connect with our team today for premium HVAC maintenance in Covington, Milledgeville, and surrounding areas.