A split air conditioner is consists of two parts – The indoor compressor unit is fixed on a wall, near the roof cornices, within the home, and the outdoor compressor unit is mounted outside, either on Aero-stand feet, on a wall bracket, or the roof. The purpose of a split system is to give air – conditioning comfort in the space where it is mounted. 

They save electricity because they only let you set the temperature in that specific room. Purifying filters are also included in high-quality models to ensure that the air is pure and fresh, and they are powerful enough to transport air to all parts of the room while remaining whisper silent. Split systems are both tidy and appealing to the eye.

can a split system air conditioner be installed on an internal wall

Can a Split System Air Conditioner Be Installed On An Internal Wall?

In the summer, a split system air conditioner is a terrific way to keep your home cooled and pleasant. You can install a split air conditioner on an internal wall or not, depending on the user’s preferences and the kind of installation. 

Because this type of air conditioner is ductless, all you have to do is install the cooling unit inside and the compressor and condenser unit outside, then connect the units with pipes and a power connection. Although each air conditioning equipment is unique to its maker, the installation process is generally the same.

What Is Split System Air Conditioner?

A split air conditioner has two primary components: an outdoor compressor and an indoor air output unit. Split air conditioners rely on a set of pipes to connect the outdoor to the indoor air unit, which is why they are referred to as ductless mini-split air conditioner installation. 

Unlike systems that require a series of ductwork networked throughout the ceiling, split air conditioners rely on a set of pipes to connect the outdoor to the inside air unit, which is why they are referred to as ductless mini-split air conditioning unit setup.

In terms of energy efficiency, a split system with the best Energy STAR certification helps keep the environment clean. It helps to minimize your monthly power bill by using less energy.

Pros Of Split Air Conditioner 

  • The single system provides enough heating or cooling inside a small area. It can be used in conjunction with other sources to make your home more pleasant.
  • If you don’t have ductwork, a split air conditioner is an excellent choice because you won’t have to pay extra to have ducting installed in each room of your house.
  • Split air conditioning systems have the advantage of being able to expand with additional air outputs for additional rooms. A multi-split air conditioner installation features separate thermostats that enable individual control of turning on and off as needed. The copper tubing linking the outside compressor to each air outlet is the only extra equipment required for more air outlets.
  • Split air conditioning systems operate quietly, making them suitable for schools, offices, bedrooms, libraries, boardrooms, and other spaces that require minimal noise. External condensers can be placed several yards away in gardens or other areas where they won’t be noticed.
  • These units have reusable filters that just need to be cleaned on a regular basis. Because the filters are simple to remove, you won’t need to hire a professional to clean them.
  • A split air conditioner is a machine that is appealing in design and goes well with the indoor design, rather than installing a large, cumbersome window unit. Your windows will not be obstructed either.
  • Most split air conditioner system models will cleanse the air entering your home, preventing allergies and dust from flowing throughout the structure. This is critical in removing the health risks that these particles might bring, such as headaches, eye discomfort, allergies, and breathing difficulties.
  • Most split air conditioners provide an additional heating capability in addition to offering complete control of the air conditioner. This enables you to work or live very comfortably throughout the year, regardless of the changing seasons.

Cons Of Split Air Conditioner

  • A split system will price 30 to 40% further than a typical air conditioning system, but the savings on energy bills and maintenance expenses will exceed this in the long run. Split system air conditioners aren’t nearly as pricey as many people believe.
  • A split air conditioner system must be installed by an expert, both to ensure the validity of your warranty and for safety reasons, as attempting to do so yourself can be hazardous. It’s possible that you’ll have to wait for a licensed installer to become available.
  • Because the tubing that joins the indoor and outdoor units of a split system is 30 meters long, they must be placed within 30 meters of each other. As a result, split systems may not be appropriate if you reside in a particularly tall building or a flat.
  • The split air conditioner systems inside units are extremely quiet, but the compressor unit positioned outside can make quite a bit of noise. If you live in a heavily packed region, this can be an issue because you must be considerate of your neighbors.

Split Air Conditioner Installation 

Split air conditioners, in general, should be put in the center of the room you wish to cool or heat to provide even circulation throughout the room. Bedroom: In a bedroom, the best place to put an air conditioner is where the air does not flow directly over the bed. 

Indeed the tiniest movement can cause the equipment to fail and void your warranties. It’s possible that you want to relocate an air conditioner to a different room, try to do it with the help of professionals.

Is it possible to put split system air conditioners on internal walls? Yes, they certainly can! Some air conditioner split system setups call for the inside unit to be mounted on an inside wall and the pipe to be run through the roof. 

In circumstances where houses or rooms have vaulted ceilings, putting pipes through the roof is an excellent idea. Technicians will typically choose the optimum location for the internal unit that also provides simple access to the roof space. Technicians will also consider the appropriate elevation for the internal unit to ensure that it can properly remove heat from cathedral ceilings.

On the Other hand, the improvements that can be made to the front of the heritage-listed residence are generally controlled and limited. This means that neither the exterior unit nor any external ducting is permitted in front of the property. 

In most circumstances, it is preferable to run the pipes internally via the roof, which may necessitate the use of some interior ductwork to access the roof. Exterior units can be put under the sloping roof, out of sight, using hooks.

Installing a Split System on a Living area Internal Wall – In the majority of circumstances, the inside unit must be mounted on a living area internal wall. If there is no place to set it up on the external walls, this is what happens. Again, it’s ideal for running the tubes through to the roof via an inner chamber, with the external unit positioned at the back of the roof or with ducting at the back of the house. 

Installing a Split System in an Older Style Apartment’s Internal Brick Wall –The location of the split system in an apartment is heavily influenced by the layout. Due to the unit being in the middle of two other apartments, the lounge area, in some circumstances has no exterior walls.

In this case, the pipes can be run through into the wall to some other room, such as a bedroom, or up through the roof if the flat is on the top floor. Any work done outside the flat must be approved by the body corporate.

Cutting the Plaster to Install a Split System on an Internal Wall of a House – When installing on an inside wall of a property, installers may need to remove the plaster to route the tubes to the external unit. There is also the option of running the pipes somewhere under the house for residences that do not have a concrete slab. Additionally, they can be run to an exterior wall and the outside unit fixed on wall brackets. 

An exterior unit can also be hidden behind decking, keeping it out of sight while also protecting it from the elements such as sunlight and rain. This can improve the unit’s overall efficiency by reducing the amount of wear and tear produced by the elements.

Installing a Split System with Internal Ducting on an Internal Wall of a Housing Complex – A split air conditioner system can be put on an interior surface of a property in a variety of ways. Installers frequently provide homeowners with options and recommendations, and homeowners’ preferences based on aesthetics and money might impact where a split system is installed. In most cases, mounting the indoor unit on a wall in the room’s corner is the ideal option. Because of the cornerbacks up to an exterior wall, internal ducting isn’t required.

If the Homeowner wishes the internal unit to be located in the center of the room, piping will need to be installed throughout the room as well as on the exterior wall.

Older-style apartments, such as those erected in the 1950s, 1960s, and 1970s, are often double brick structures that are highly insulated. The double brick tends to protect the heat in or out of these flats, making them ideal for split system air conditioning units. 

Because the inner brick walls of older-type flats are typically covered in render, the placement of a split system must be done with great care and precision. If done quickly or by a novice installer, heavy drilling is required, which might cause harm. 

In some older apartment buildings, the body corporates do not have clear criteria for installing air conditioners. It’s difficult for technicians to understand what the body corporate might permit and what it won’t allow without the body corporate standards.

are carrier ductless mini splits good

External Unit Positioning

It’s crucial to inform an Operator if you’re planning any future modifications or additions to your house, as this can affect where the split system and its exterior unit are installed. 

Split system external units can be positioned all alongside a house, which would be a discreet and out-of-the-way location. 

Multiple units can be arranged along a single wall, with units set on the floor or on wall hooks, usually above the head elevation.

Placing the external unit on the ground may not always be possible, based on what is on the ground below. This happens when a pathway runs along the wall, putting the unit in the direction and making access along the path problematic.

External units can also be set high on a home’s sidewall. For simple away setups, where the external and internal units are on different sides of the same wall, side walls are a perfect alternative. In general, it’s critical to make sure the back wall has adequate space to be used for moving goods, such as bins, following installation.

Mounting the exterior unit on the wall would not be an option for older design timber-framed homes because the unit is usually too hefty for the wall. For most weatherboard dwellings, the exterior unit can be fixed on the roof or positioned along the ground.

The drainage for the interior and exterior drains can be directed to the house’s drainpipe in some circumstances, especially if wooden decking is being added. This is required to prevent standing water from the flooring once it has been constructed.


Air conditioning is undoubtedly vital, particularly if you live in a hot and humid climate. Can a split system air conditioner be installed on an internal wall? Air conditioning units are a significant investment for any homeowner, and considerably more so for rental houses. 

Wall-mounted split air conditioners are a widely used commercial option since they are attractively built to be installed on the wall to save space nowadays. It is intended that after reading this post, you will be able to decide, which system of installing split ac on your house’s wall you should choose.

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