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Can You Run Mini Split Lines in Wall? (Quick Answers)

We always put our electric lines and other plumbing lines in our drywall or finished wall. It’s always a good idea to put all the lines inside the wall before we block or close the drywall. It’s always included in the design of our house that we usually put everything inside it.

Sometimes, we also put gas lines & plumbing lines inside the wall, but that doesn’t mean you can put anything inside the wall. There is a structure that you cannot break anyway. So, let’s see what you can do with other lines and pipes.

Putting a mini split lines in wall

You can run your mini split refrigerant lines in the wall without damaging the wall. It would be better to put the mini split lines before closing the drywall. It will be safe to run the mini split refrigerant line into your walls; however, putting a mini split line in the wall has some cons. 

If you put your mini split lines in before building that wall, it will be safe, and there will not be any messy things. What if you put the split lines after completing your drywall? In this situation, you need to damage your drywall a little bit and then put that into the wall. 

It’s the only reason you should decide early or before making the wall.

Mini split line is mainly the refrigerant line that people mostly keep inside the drywall when they plan to build their house. If you forget to insert the split lines before finishing your drywall, you must repair the damaged wall. 

If you plan to insert the mini split lines in the wall, you must use PVC pipes or anything that can bear the pressure.

You will have pros and cons of putting a mini split line in the line that you must consider before. The best part of putting your mini split lines in the wall is that you will keep it safe, and the line or electric line will be safe there for a long time. You can avoid any electric hazard easily. 

Additionally, putting mini split lines in your drywall will save you extra cost and will not hinder any performance breakdown in your mini split refrigerator. 

When you put that line into your wall, you should always check that the line is in good condition so that it will not get bent or damaged due to putting it into the drywall.

If you already put that line in your unfinished drywall, there will be no cons, but to put the mini split lines into a finished wall will be time-consuming. You must break some part of your wall to insert the mini split inside the wall. 

Then, you must repair the damaged or broken wall with some drywall mud or anything that can fix it smoothly.  

When you finish the other walls, it will be an excellent decision to have some unfinished drywall parts. If you’re sure you will use a mini refrigerator and put your split lines into the wall, you should leave some unfinished walls. 

It will help insert mini split lines without damaging or breaking your finished walls.

In that way, you can save the structure of your will, and the finishing will be the same as your finished wall. 

Besides, you should follow some tips to insert the split lines in the division since there will be some tips and steps that will help you put the split lines comfortably and without blunder. 

How long can you run mini split lines in walls?

If your refrigerator has that long line, you can run 50 feet of mini split lines on your walls. In most cases, the mini split lines come with a 15 feet length that is enough to insert safely into your wall without damaging or turning the split lines into the wall. 

Remember, you should not buy mini split lines less than 15 feet.

When you plan to insert your mini split line inside your wall, your mini split lines must be bigger than the regular refrigerator lines. First off, you are not inserting the socket outside the wall that can manage if your mini split line is only about 2-5 feet long. 

Since you insert the line in your wall, it will consume more than half of the mini split.

Therefore, it’s better to choose or get a long mini split line that you can put on your wall safely. A 15 feet mini split line is common and safe, but a 50 feet mini split line will have some extra length outside the wall. 

So, choose the right mini-split line according to your wall size, and avoid using oversized lines.

Pros and cons of putting mini split lines in the wall

As explained before, you will find both pros & cons of putting a mini split line on your wall. They are described below.


You will find the below pros of putting mini split lines in the wall. They are:


The first advantage of putting your mini split lines in the wall is that running them outside will be much safer. It will be safe and remain in good condition for a long time. Moreover, you can avoid an electrical hazard by putting it inside the wall.

Organize your mini split line:

Another best part of putting your mini split lines on the wall is that you will keep them organized. You don’t need to think of keeping that outside and think of extra space. In a sense, it will save some space.


You should also consider some drawbacks or cons of putting mini split lines on your wall. They are:

Damaged Wall:

If you want to put your mini split in your finished wall, you may need to break some portions to insert the mini split lines. It will not be easy to repair the wall like before unless you use the same ingredients to repair it.

Lengthy Repairing Process:

If your mini split lines get damaged after long use, you must replace them with a new one. If you already put your lines in the wall, you need to break the wall again to put it out and then insert a new one. 

The process will be lengthy and tiresome. It’s another con of putting mini split lines on your wall.

What do you wrap a mini-split line with in the wall?

To begin, wrap the line with the insulation and secure it. After it is secured, peel off the protective film and firmly push the adhesive sides together until they adhere. 

This procedure becomes marginally more complicated when dealing with corners, insulation connections, and line termination.

Insulation should be cut at a 45-degree angle on both sides to create corners that are 90 degrees. After that, you can slide these together until they are properly aligned in the corner. After that, you should seal this junction with either air-sealing insulation tape or silicone caulk.

When working on connections, make sure to butt together the two pieces of insulation. Afterwards, secure the junction using the insulation tape by wrapping it around it tightly. 

The insulation will now be finished, and the joints will no longer be a potential source of trouble in the future.

How to run mini split lines in walls?

You should run mini split lines in walls by going to the instructions below: 

Obtain Entry Into Lines:

To begin, you must ensure complete access to both lines for the ductless mini-split system. Because the lines are usually in plain sight on an outside wall, this phase is typically a piece of cake to complete. 

To gain access to the line when it is set up in the attic, you may have to dig through insulation and enter unpleasant regions.

Cover Line:

It is fairly typical for the lines that connect the indoor unit to the outdoor unit to have a plastic or metal line cover tidily placed over them to keep them nice and tidy. These things make the line last longer and make the system look better. 

In most cases, screws or nails are utilized to secure line covers to the siding.

If the line cover is nailed in place, pull the nails loose with caution so as not to damage the siding or the line cover.

Retrieve, Reattach, Safeguard:

At this point, you should consider recovering, reattaching, or protecting the lines that have just been insulated. 

The increased thickness of the new insulation will frequently render the previous line cover unnecessary.

Final Thoughts

Although you can run your mini split lines on the wall, you must consider the pros & cons of it. You will love to keep your split lines safely inside your wall, but the repairing time and breaking would be some significant cons. Besides, the length of your mini split lines will be another concern.