Window AC vs Split AC: Which air conditioner is best for home? Before buying, know the complete mathematics of cooling, electricity bill and noise.


During the scorching and scorching summer season, when you go to an electronics store or online website to buy a new AC for your home or office, you usually see two main options – wall mounted Split AC and fits easily in the window Window AC.

Often people choose AC only on its external look, attractive design or on the advice of shopkeepers. However, the decision of choosing the right AC should not be based only on its beauty. It completely depends on how big is the size of your room, what is the ventilation system and how you use that space. Let us understand in simple language which of the two ACs will be best according to your needs.

1. Room Size and Cooling Capacity (Room Size Matters)

The area of ​​your room plays the most important role while selecting an AC:

  • Split AC (Best for larger rooms): If the area of ​​your room More than 150 Sq Ft If so, then split AC gives more effective and uniform cooling. Its indoor unit is installed in the higher part of the room and spreads the cool air all around, while the heavy compressor remains outside. With this, a large room can be easily kept cool for a long time without putting much pressure on the machine.

  • Window AC (suitable for small rooms): If your room smaller than 150 square feet (like a small bedroom, child’s study room or a small cabin), then a window AC is an economical and great option. In this, all the necessary cooling components fit in a single square box (single unit), which cools small spaces in minutes.

2. Installation hassle and initial expense

  • More expenses in split AC: Installing a split AC is a bit complicated. The technician has to make a hole in the wall and connect the indoor unit to the outdoor unit placed outside through copper piping. Its fitting takes more time and installation charges are also higher. However, its big advantage is that your window remains completely open, due to which the flow of natural light and fresh air into the room is not obstructed.

  • Easy fitting in Window AC: Window AC is very easy to install and less expensive. It can be fitted in the frame made in the window or wall in a short time without much demolition. But its biggest drawback is that it takes up a lot of space in your window, blocking the way for outside light and air.

3. Quiet environment vs machine noise (Noise Level)

People often forget to pay attention to the noise level while buying an AC, but its importance is known when you are sleeping at night or working in a quiet environment:






type of ac Noise Level (Decibels) Experience and comfort
split ac 35 to 45 decibels Inside as the compressor is outside the room Absolute pin-drop silence (Peace) remains. Best for deep sleep and studying.
window ac 50 to 60 decibels Due to the compressor, blower and all the parts being in one compartment, when it runs relatively loud sound Comes, which may bother some people.

4. Electricity consumption and monthly bill (Power Consumption)

  • Inverter Split AC (Paisa Vasool Technology): Most of the split ACs coming in the market nowadays Inverter Technology (Inverter AC) Come with. They increase or decrease the speed of their compressor according to the temperature of the room. This keeps electricity consumption well controlled and in the long run your electricity bill comes down by 30-40%.

  • Non-Inverter Window AC: Normal window ACs usually operate at a fixed speed. Even after the room cools down, their compressor continues to draw full power, due to which their power consumption is slightly higher than that of split AC.

5. Maintenance and servicing costs

  • Window AC: Its cleaning and care is very easy. You can remove its air filter yourself at home and clean it with water. The annual cost of its maintenance is very low.

  • Split AC: This requires periodic deep-cleaning of both indoor and outdoor units and checking of gas pressure. For this you need a professional technician (AC Technician), due to which its maintenance cost is slightly higher.

final conclusion: Don’t just look for attractive looks or discounts while buying an AC. If your budget is good, room is big and you want a quiet environment, then inverter split ac Best for you. At the same time, if you live in a rented house, the room is small and you want a budget-friendly and less hassle option, then window ac Will prove to be the best deal for you.