Window AC vs Split AC : Know The Difference?

Irrespective of where you live in the country, it is highly likely that it gets quite hot in your home and office during the summers. Because of this, a fan might not be able to keep you cool so that you can go through your daily chores without feeling hot. In such a case, getting an air conditioner is a must due to which there are many air conditioner models out there.

Surely, these different models offer all kinds of features and options to the user, but there is more to check while getting an air conditioner. You need to make sure that you are getting the right type of AC as per your room, as well as your needs and requirements.

This primarily includes windows ACs and split ACs. And if you are also in the market for a new air conditioner, then make sure to go through the following points to understand all of the important differences between window ACs and split ACs:

1. Form Factor and Design

Even though it does not affect the performance, a lot of people care a lot about the form factor and the design of a given air conditioner. If you live in a small home or a compact office space, you might not have a lot of space. As a result, a window AC will be preferred by a lot of users since all of its components are present inside a single unit.

On the other hand, a split AC has a total of two units where one is installed inside your room and the other one outside your room. Talking about the aesthetics and design, a split AC looks much better in modern home designs and office places, making it a better option.

2. Price

Before talking about the performance numbers offered by different air conditioners, you should also consider the price of these different types. Those of you who are on a budget should consider going with a window AC since it is going to be much cheaper than a split AC.

In fact, if you are buying a similarly powerful air conditioner, then a split AC is going to be almost twice as expensive as a window AC that offers similar cooling capacity.

3. Cooling Capacity

When you are talking about the performance of the air conditioner that you are going to buy, you need to check its cooling capacity. This tells you about the respective room size a given AC can properly cool.

You will find the cooling capacity of your AC given in ton, which includes various ratings like 0.75 ton, 1 ton, 1.5 ton, 2 ton, and even more. With a higher cooling capacity, you can easily cool a large room. If you want to choose an air conditioner with the right cooling capacity as per your room size, then you can refer to this:

Room SizeCooling Capacity
0 square feet to 80 square feet0.75 ton or higher
80 square feet to 120 square feet1 ton or higher
120 square feet to 190 square feet1.5 ton or higher
190 square feet to 300 square feet2.0 ton or higher

Generally, a window AC should be more than enough to cool your room irrespective of its size. This is due to the reason that window ACs are available in most sizes ranging from 0.5 ton to 2 ton, which can effectively cool any room of the different sizes mentioned above.

But, if you want to cool a larger room or hall which is larger than 300 square feet, then you will need an AC unit that has a cooling capacity of more than 2 tons. In that case, you will have to use a split AC as only they are available in cooling capacities higher than 2 ton. This means that if you want highly powerful air conditioners, then going with a split AC will be a safe bet.

4. Power Efficiency

While you might get a highly powerful AC for quickly cooling your room in a short period of time, the power consumption of your AC and your monthly power bills is something you should consider. Whenever you are using a highly powerful AC throughout the day daily, you will see your power bills getting increased by a lot.

Thankfully, this can be easily overcome by getting an air conditioner, which is more power-efficient. The easiest way to ensure this is to check the Bee Star rating of your AC. This star rating ranges from 1 star to 5 stars, where a higher rating results in better power efficiency. Another thing to consider related to this star rating is that the star rating label period should be as latest as possible.

This is because if you have two ACs with a 4-star efficiency rating, then an AC with the 2020 label will offer better power efficiency than the 2019 one. Another power efficiency rating found in ACs, which is similar to their star rating, is the EER rating. The EER rating of your AC tells you about the ratio of the heat removed for a given amount of electricity used.

Thus, a higher EER rating results in better power efficiency making a 4 EER AC better than a 3 EER one. To help you better understand the star ratings and EER ratings, here is a power efficiency chart of a typical 1.5 ton AC which gets used 8 hours in a day:

Star RatingEER RatingCooling CapacityInput PowerUnits Consumption/Day
12.75200 watts1926 watts15 kWh
22.95200 watts1793 watts14 kWh
33.15200 watts1677 watts13 kWh
43.35200 watts1576 watts13 kWh
53.55200 watts1486 watts12 kWh

Talking about window ACs and split ACs, you will generally find out that split ACs offer higher BEE star ratings and higher EER ratings compared to window ACs. Not only that, but most split ACs also come with inverter technology, which is absent in most window ACs. In other words, if you want an AC with low power consumption, then you should go with a split AC and not a window AC.

5. Noise and Sound

If you are going to use your air conditioner in your bedroom, then it is highly likely that you are going to use it at night as well when you are sleeping. But, this is only possible if your air conditioner stays silent during its operation throughout the night. Thus, make sure to check the noise and sound levels of your air conditioners.

Comparing window ACs and split ACs, it is highly likely that a split AC will run much more silent. This is due to a simple reason that all of the components of a window AC are present in a single unit, which combines to make a lot of noise. On the other hand, split ACs have most of their functional units in an external unit, making them almost silent in most cases, making them ideal for bedroom usage.

6. Maintenance

Once you have selected the right air conditioner type for your home or office, making sure that it will work flawlessly for a long time is also quite important.

Even though both window ACs and split ACs come with a warranty, you also need to regularly get them serviced to ensure that they keep working without any issues while offering proper cooling performance. This is where a window AC turns out to be better than split AC since it is much cheaper to get repair due to its low cost of maintenance.


Based on all of the factors mentioned here in this comparison, it is highly likely that a split AC is going to be a better performing option for you. These ACs also offer creature comforts like being silent, offering better power efficiency, and looking better in modern homes and offices.

On the other hand, if you are on a budget and want a low maintenance air conditioner that can fit in compact spaces, you should go with a window AC. Make sure to share your thoughts in the comments section. You can also post any questions down there if you have any!