Difference Between Window AC And Split AC: Window AC Vs Split AC

Planning to buy a new AC? If you are a new buyer, you must be confused between the Window AC vs Split AC. Right? Well, that’s the confusion that many people have. So why not clear that confusion. Let’s settle the battle of Split AC vs Windows AC.

What Is A Split AC?

As the name suggests, split AC is a two-unit AC where the compressor, condenser, and other related parts will be in one unit, and the evaporator is in another unit.

The unit with compressor and condenser should be assembled outside of the room, and the unit with evaporator should be inside the room.

Difference Between Window AC And Split AC
Split AC

What Is A Window AC?

As the name suggests, this type of AC should be assembled in the windows. Unlike Split AC, windows AC has only one unit with a compressor, condenser, and evaporator. The complete unit needs to be assembled in a window. Only the evaporator faces the room.

Difference Between Window AC And Split AC
Window AC

Differences Between Window AC Vs Split AC

We will find the differences between window AC vs split AC based on the following criteria, and then we will decide which one to choose based on your requirement.

  • Energy Efficiency
  • Space Consumption
  • Cooling Capacity
  • Noise Level
  • Looks and Aesthetics
  • Safety
  • Comfort and Convenience
  • Pricing
  • Brand
  • New Technologies

Energy Efficiency

In simple words, the energy efficiency of an AC can be defined as the amount of cooling it provides per unit of electricity it consumes. This is called Energy Efficiency Ratio( EER)

The more the value of ERR, the better the AC is, and the better the AC is, the less amount of money you need to spend on your electricity bill.

In India, the energy efficiency of AC is defined by star rating value. The Bureau Of Energy Efficiency (BEE) is the central body for certifying the energy efficiency of AC.

BEE has made it mandatory for all manufacturers to print an energy efficiency label ( Star Rating) on all air conditioners. The more star rating an AC has, the better energy-efficient the AC is.

bee star rating
Sample Star Rating Card: Credit- Samsung

Star Rating values vary from one star to five stars. Five stars are the best rating, and one star is the worst. If the AC is five-star rated, then it would be the most energy-efficient.

Both Split AC and Windows AC come with a 5-star rating. But in the case of Window AC, there are very few options with a 5-star rating. On top of that, all new technologies are mostly implemented in Split ACs.

So even though both Window AC and Split AC with 5-star ratings consume almost the same electricity, split AC has an Edge due to the wide variety of options and new technologies.

Space Consumption

Since Windows AC is a single-piece unit, it consumes less space in your room. You need to find a place next to your window to install the window AC.

In the case of Split AC, you need a good amount of space inside your room. On top of that, there will be pipes connecting to the outer unit of the AC.

You may need to drill through the wall for those pipes to pass through. So not only Split AC takes up more space, but it also makes space cluttered.

Well, we learned that Window AC is better if we talk about space Consumption. But does it really a viable option?

We Indians live in apartments with a very minimum gap between two apartments. If you place an AC in a window, there is a chance that your AC may hit your neighbor’s window. So think about that.

You may also need to have a specially designed window grill just to fit the window AC. Split AC does not need a window cutout.

Also, the outdoor unit of the Split AC is smaller than a Window AC. So your neighbor won’t complain due to your AC hitting their window.

So in terms of space Consumption, window AC is a better choice, but if you think practical, then Split AC makes more sense.

Cooling Capacity

The tonnage defines the cooling capacity of an AC. More the tonnage better the cooling capacity of the AC. For a medium to a large room, 1-2 ton AC is more than enough unless you stay in cities like Delhi, Mumbai, or Chennai.

Split AC’s are available in the range of .5 ton to 2.5 ton. However, getting a 2-ton window AC is difficult. In that sense, Split AC is a more viable option in terms of cooling capacity.

Due to the various new technologies available in split AC’s, they can give better cooling capacity than similar tonnage window ACs.

Noise Level

Since the compressor and the condenser of a window AC are in a single unit and assembled in your window, you will hear a lot of noise. Although during the daytime you may not feel the noise, it is more annoying at night.

Split AC usually has its outdoor unit way out of your room. Usually, it is installed on top of your window roof or attached to the wall using some bracket. So unless you open your window, you won’t be able to hear the compressor sound.

Split AC’s also comes with technologies that keep the compressor sound very low. So if you are concerned about the noise level, you should definitely go for a Split AC.

Looks And Aesthetics

No doubt, split AC looks much better and is pleasing to your eyes. But the problem is that you need to arrange all wires and pipes in the proper place. Otherwise, it looks worse than a Window AC

Nowadays, Split AC’s comes in different colors and different designs. You may also see some floral skins on split AC’s that look really great and for sure enhances the elegance of a room.

In the case of Window AC, all you can see are the fins. Because the whole unit will be outside of your window, You may not see wires and pipes dangling around, but window AC won’t enhance the look of your room for sure.


Safety should be the main consideration that everyone should consider before buying an AC. Right? If you have a kid, then I would suggest you stay away from window AC.

The reason is simple. Window AC is easily accessible to kids. They can easily put their fingers inside the AC unit, which is a big safety issue.

They can even touch the wire inside. So stay away from Window AC if your kids do not know what he or she is doing.

Spilt AC’s are NOT easily accessible to kids and even though they can reach the AC, there is no such easy way to put their fingers in.

Comfort And Convenience

As I said before Split AC’s are much quieter than window AC. That adds to your comfort level. Right?

In the case of Window AC, those are way too louder and cause annoying sounds. But those are easy for servicing as service people don’t need to climb to service it.

Split AC’s are tough to service. The technician needs to climb to get the outdoor unit down and then service it. That is why Split AC servicing is always costly.


Pricing plays a key role in deciding which AC to buy. Windows AC’s are way cheaper than Split AC’s as window AC has everything in a single unit, reducing the production cost.

Split AC’s on the other hand, is very costly. However, you may get split AC for cheap if you buy from non-branded companies. If you want to buy something good, you have to shell out a good amount of money.

On top of that, if you want to buy a 5 star rated split AC, you may need to spend a minimum of 40K to 50K Indian rupees. Same tonnage and the same energy-efficient window AC you may get for 10K less.

So although spilt AC is costly it comes with a lot of benefits. For long-term investments spilt AC’s are the best.


Well, nowadays, many reputed brands have stopped making window ACs. People do not prefer window AC and companies make less profit by selling a window AC.

Companies also do not like to invest money and space in Window ACs. The same amount of space and money if they invest in other areas they can make more money

So if you are brand conscious then you have no option except to choose a split AC

New Technologies

You won’t see many new features in Window AC’s as companies do not like spending on a product that gives them less profit.

For example, inverter technology is an excellent technology for saving energy. But it is not available in window ACs. Samsung has recently launched a Wind free AC, which is also not available in window AC.

Numerous other technologies are available in split AC’s but not available in window ACs. So if you want to enjoy new technologies in your AC, then split AC is the best.

Split ACWindow AC
It comes in two unitIt comes in a single unit
Installation is toughInstallation is easy
Occupies less spaceOccupies more space
Multiple cooling units in a room is possibleThe number of units depends on the number of windows
Less noiseMore noise
Service is toughService is easy
Better cooling efficientPoor cooling efficient
New technologies are availableNo new technologies
Different capacity ( Tons) ACs are availableLimited capacity

The Verdict: Window AC Vs Split AC: Which one to buy?

  • If you bother about your electricity bill, choose a split AC
  • If you want to buy a high cooling capacity AC, then choose a split AC
  • If you want to enjoy new technologies in your AC, go for a split AC
  • If you want a quieter room and to want to enhance your room’s look, split AC is best.
  • If you have very little space inside your room, the windows AC is good.
  • If you are running short of money and want to buy an AC for the short term, window AC is the best choice.

Conclusion: Window AC vs Split AC

That’s all we have in this article to explain the differences between Window AC Vs Split AC. I hope I have enough insights to decide which AC is the best based on the different parameters mentioned. Still, if you have any questions or queries, write to me in the comment section, and I will be happy to help.

You may like to read: 10 Best AC In India



Rajib is the Co-Founder and the Lead Product Analyst of RiansTech. A BTech in Mechanical Engineering and a veteran in the Home Appliance industry with over 17 years of experience in designing appliances for industry leaders like GE and Whirlpool. He also runs a successful niche blog (RiansClub) on Mechanical Engineering