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Where to Install Mini Split

Where to Install Mini Split

Jon Hubal
6 minute read

Are you considering getting a mini-split? First, you must learn where to install the mini split for maximum efficiency and comfort in your home. Ductless mini splits are becoming a more popular choice these days.

Minis provide near-infinite versatility in installation, allowing lots of flexibility regarding where the units go.

I Got a Mini-Split - Where Do I Put It?

Mini-splits take up significantly less space than their central air counterpart because they don't use ducts. How much space you can save going from ducted to minis is a case-by-case basis since every residence is different. It depends on how much ducting you require, but either way - mini splits save you an immense amount of room and are perfect for remodels.

DIY Ductless Mini Split Installation

Ductless mini installation is a great DIY project for anyone since they generally don't involve much construction or renovation. All you need is basic HVAC knowledge, electrical and plumbing skills, and voila! You have heat.  

Let's look at all the installation possibilities your ductless mini provides!

Where to Install Mini Split

Where to Install My Ductless Mini-Split

We'll assume you've already sized your situation and have the mini split you need (single, dual, multi). You can install the outdoor or indoor unit(s) first, but you may want to determine the units' location and connection lines before drilling. Essentially, you need to place your outdoor condenser and indoor air handlers and connect them with conduit and piping. 

Installing Ductless Mini Split with Small Holes and Precautions

The conduit, cables, refrigerant line, and condensate piping sound like a lot but usually only require about a three-inch hole or less – no need to worry about significant construction damage.

Remember to cut off electricity to the circuit before you start sawing! You don't want to earn a new hairdo because you forgot this step. DIY safely, friends.

Where to Install Indoor Mini Split

Indoor air handlers can be placed on floors, walls, and even on the ceiling – just about everywhere but the window. Efficiency, accessibility, and aesthetics (in that order) usually determine where you want to put it. Indoor units are installed where they're still accessible but retain high efficiency.

Where to Install Indoor Mini Split

Proper Placement for Efficient Heating and Cooling

Equal air distribution is a priority. Try to place the unit where it will effectively dispense hot or cold air. For example, if you are in a colder climate, you could place the unit so it dispenses warm air into the room. A low spot on the wall or floor would be good in this scenario. 

Place the indoor unit(s) surrounded by ample unobstructed space, where they can effectively condition the area and not be overworked. As recommended by HVAC experts, ensure there are at least two inches of space around it. 

MRCOOL DIY Easy Pro® 18k BTU Ductless Mini-Split Heat Pump Complete System

MRCOOL DIY Easy Pro® 18k BTU Ductless Mini-Split Heat Pump Complete System


MrCool DIY Easy Pro® 18k BTU Ductless Mini-Split Heat Pump Complete System The MrCool DIY Easy Pro® 18k BTU Ductless Mini-Split Heat Pump Complete System is a high-performance heating and cooling solution for your home. It features an 18,000 BTU… read more

Finding the Ideal Location

The unit should be accessible for convenience and easy maintenance, such as changing filters or cleaning the pipes. Make sure it's where you'd want to control it. Don't put it up high if you're not six feet tall. 

If possible, place the indoor unit where it is less visible. Keeping it relatively hidden can be a huge plus if you can swing it. Remember, you have to connect the indoor unit to the outdoor condenser, so try to keep the connection lines out of sight.  

Where to Install Your Outdoor Mini-Split Unit

Outdoor air condenser units can go essentially anywhere as well – ground, walls, and rooftops – but like the indoor units, you'll want to place them where they'll be most efficient. This means cooler locations, like the side of the building that receives the least sun or wherever the unit can be in a lot of shade. 

Where to Install Your Outdoor Mini-Split Unit

Tips for Outdoor Condenser Placement

This will help the unit work as a heat pump and generally operate more efficiently, as machines do at cooler temperatures. 

Like indoor units, place your outdoor condensers where they will receive unobstructed airflow, allowing the fan and venting to work. Avoid placing it near plants which will impede the flow.

Outdoor Unit Maintenance

Outdoor units are weather resistant and don't usually need to be covered, even in winter. But it can help your unit last longer, especially if you have snowy conditions.

Condensers can be installed using mounting brackets on exterior walls – particularly the backsides of buildings, a great way to keep them out of sight. If mounting on a wall, ensure ample space between the wall and the unit and at least 20 inches free above the unit. 

Once the condenser is mounted, connect the pipes, wires, and tubing from your indoor unit to the outside unit, hook it up to the primary circuit, and boom – you have climate control.  

Buck Cool Mini-Split EZ Connect 24K BTU Complete Installation Kit

Buck Cool Mini-Split EZ Connect 24K BTU Complete Installation Kit

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Where Will You Put Your Mini Split?

Ductless mini-split systems provide incredible flexibility with where you can install, much more than ducted systems, and can be a great option when ducting is impossible. While you can place indoor and outdoor units in many places, you'll probably want to prioritize operational efficiency, ease of access, and general aesthetics. 

Make sure to follow the manufacturer manual and all safety procedures, and if you're not confident in your placement, have a licensed professional check it before installing. It never hurts to have a second opinion!

Interested in Learning More About Mini-Splits?

To further expand your knowledge about mini-splits, be sure to check out our other related blog posts. We have articles that cover topics such as the benefits of mini-splits, how to properly maintain them, and their energy efficiency compared to traditional HVAC systems. Read more about the Best Mini Splits 2023: The Ultimate Guide, and if Mini-Splits Increase Your Home's Value. We also have  A Step-by-Step Guide for sizing your mini split system, and an Installation Guide on Where to Install Your Mini Split.

Our blog is a great resource for those looking to learn more about this type of heating and cooling system, and we're constantly updating it with new and informative content.

Contact The Trade Table 

Have questions about our Mini Split Installation Guide: Where to Install Mini Split? Or need help deciding what mini-split is perfect for you? Please feel free to contact one of our real representatives by chatting with the chat button in the bottom right, calling us at +1 (256) 633-6553, or emailing us at

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