Where Should You Install A Split AC In Your House And Why?

Did you know that the placement of your split system air conditioner in your home has a significant impact on its energy efficiency?

That's right, a strategically placed air conditioning system doesn't only mean you achieve your desired results in terms of temperature control, but it also means lower electricity bills!

Let's take a look at all the factors you need to consider before you have your split air conditioner installed - so that you (and your wallet) can reap the rewards.

Factors To Consider Before Installing Split System Air Conditioners

Where Do You Need it Most?

The easiest way to figure this out is to think about the following questions:

  • Where do you (or your family) spend most of your time when at home?
  • Do you struggle to sleep on hot nights?
  • Do you work from home and spend hours in your office, or lounge?

This will help you to determine which room to pick. Most people tend to install the air conditioner in a room where their family spends a lot of time, like the lounge or office, or they choose to put it in their bedroom.

Do You Need to Cool/Heat Only One Room Or the Whole House?

But what if you need to cool or heat more than one room in your home?

If that's the case, your best option is to install your air conditioning unit in a central location in your home, this is usually somewhere in the lounge area.

And you'll need to make sure that you choose an AC that has enough power to cool your whole house.

What Is The Best Position For Your Air Conditioner?

The Best Position 

As a general guideline, the most appropriate place to put an indoor unit is:

  • High up on the wall, near the ceiling. Since hot air rises, your AC will counter this effect by ensuring the air higher up in the room is just as cool as the air closer to the floor.
  • In the centre of the room. This is to ensure that the cool air can spread evenly through the room, or through your house, and not collect in one specific area.
  • On an exterior wall. If the unit is on an exterior wall, it makes the installation much simpler, quicker and cheaper. Why? Less tubing and wiring are needed between the indoor and outdoor units, unlike having your AC unit mounted on an interior wall. That can make things a lot more complicated.


Obviously, it won't always be possible to meet all of the guidelines mentioned above, here are some obstacles that you might encounter:

No available exterior walls

  • You live in a duplex, or adjoined apartment
  • Your property features wall-to-ceiling windows instead of exterior walls
  • Some rooms have no exterior walls. If this is the case, the only option is to install your split system air conditioner on an interior wall - which will be more complicated and costly!


The following things could obstruct the airflow, and make you reconsider where you position your AC:

  • French doors
  • Half walls
  • Columns or pillars
  • Dividing walls

Nearby Appliances

This issue isn't very common but it's worth mentioning. If you install your air conditioner close to a room with electrical appliances (like the kitchen), the excess heat from cooking, for example, could trigger your AC's thermostat.

This would be unnecessary, and less energy efficient.

Where is the Best Place to Install the Outdoor Unit?

First of all, does it really matter? Yes!

The location of your outdoor unit will affect its ability to heat and cool efficiently, lengthen its lifespan, and energy usage.

Here are some tips for where to install the outdoor AC unit:

  • Place it in the shade. Avoid placing it in an area that receives a lot of direct sunlight
  • Make sure it's in a well-ventilated spot. It should be exposed to free-flowing air on all sides of the unit. Avoid shrubbery being too close.
  • Avoid an unstable surface. A concrete slab or a wall is best so that it won't vibrate.
  • Prevent corrosion. Install the system in an area where it won't be exposed to or damaged by corrosive substances.  If you do have a problem check out ac repair Las Vegas for their repair services.

To Wrap It Up

If you're thinking about installing a split system air conditioner in your home, it's crucial that you mount it in the right place.

Consider using a reputable high-quality service, like Sun City Air Conditioning in Brisbane.

Working with an aircon expert will guarantee that you pick the very best location to install your indoor and outdoor unit to get the results you seek and save on your energy bills at the same time.

*Collaborative post

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