Single Zone vs Multi Zone Mini Split Systems

zone mini split
By | September 17, 2025
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With mini splits gaining traction, they’re becoming a popular choice when deciding which system to put in. Most are energy efficient and significantly cheaper than putting in a full on ducted system. But homeowners are often stumped with one question — to put in a single zone or a multi zone mini split system. Well, it all depends on what you’re going for. Things like your home’s size and layout play a big role. Hence, today we are breaking down the differences so you can make an informed decision. 

Diving Into Single Zone Mini Splits

When it comes to single zone mini split systems, it’s really just as it sounds. There’s one outdoor unit and one indoor unit. The 1 zone mini split is the mini split option for a small room or zone. More or less these units are great for studio apartments, garages, add-ons, home offices, and rooms of the like.

single zone mini split

Single zone systems are great because of their lower upfront cost. Especially good, if you only need to target a specific area. These units are also rather simple to install, which will also help save on upfront costs. Plus, since you’re targeting energy usage to one space, it could help you save on power bills down the line. 

Diving Into Multi Zone Mini Splits

Just as its counterpart, the multi zone mini split system, is also just like it sounds. It’s for multiple zones in the home. This set up also includes one outdoor unit, but can connect several indoor units to the one outdoor. Most on the market will house from two to five indoor add ons, but some can even support eight. 

multi zone mini split

The up-side in this situation is that each indoor unit can be separately regulated. So if someone prefers their bedroom to be cooler than you, it’s a win-win situation. Multi zone systems are great for multi story homes, especially if you’re looking to replace central AC. 

These systems can offer some benefits. For example, if compared to a ducted system, the mini split option tends to be more allergy friendly. When there are no ducts present, dust can’t collect deep in the unseen areas and overall air quality tends to be better. Plus, they tend to be easier to maintain. 

Trust Green Ductors for Expert Solutions

It’s ultimately up to you to pick the system that’s right for you and your space. If you want a more in-depth look of the different systems available and their pros and cons, have a look at one of our prior posts here

In summing up today’s thoughts, single zone mini splits tend to be cheaper and a good option for a single room or open space. They have a lower up front cost, and have one indoor unit with one thermostat. Multi zone mini splits on the other hand have multiple indoor units each with their own temperature control options. These are great for larger homes but have a higher installation cost. 

Our experts at Green Ductors will be happy to help you assess your home and discuss options for installation. Whether you’re looking for multi zone comfort or single room upgrades, we’re just a call away at 888-334-1612 Your comfort is our priority, so don’t hesitate and call today!

The founder, CEO, and author of articles for the Green Ductors blog. Dedicated to his work, Dmytro strives to make people more aware of the importance of maintaining the best possible air quality. By treating readers like friends, he communicates even the most complex information in an easy-to-understand way to make your reading experience not only useful but also enjoyable. Check out the articles written by the hand of our founder Dmytro.

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