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These are the major differences between window ac vs split ac

Things you need to know before buying window ac or split ac!

Want to know the best selling, best performing Ac’s to beat the heat? To combat the scorching sun, you need to understand the know hows of an air conditioner. There are thousands of ACs in the Indian market which is a blessing because you have a gigantic platter to select from. This piece is your go-to guide to comprehend the difference between window ac vs. split ac. This also can sometimes lead to confusion. In such a dilemma, Explore, Compare and Choose should be your mantra!

At present, one has to choose from three types of ACs

  • Split AC
  • Window AC
  • Centrally air-conditioned systems

At present, one has to choose from three types of ACs:  Split AC, window ACs, and centrally air-conditioned systems. For small homes and with an average household budget, there are only two feasible options. First being a split AC best ac brand in India and second a window AC. There are a lot of aspects to differentiate the two and one can select as per their needs and arrangements.

Reading it further will give you a fair idea about the nuances of the two ACs and their functioning. Speaking in general, split ACs are considered better than window ACs due to their cooling capacity and power consumption.

Window ac vs split ac – which is more efficient?

Split ACs create less noise and hence are quieter than window ACs. Their cooling effect is better, and they reduce the temperature of the room at a much faster pace. This is due to their better air distribution. The greater surface area of their condenser coil, which is present in its outdoor unit, helps in increasing its cooling efficiency.

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    Lloyd 1.5 Ton 3 Star Window AC

    Buy on amazon

    Windows AC: Economical and easy to install

    Capacity: 1.5 Ton. Suitable for medium sized rooms (111 to 150 sq ft)

    Energy Rating: 3 Star. Annual Energy Consumption: 1296.63 units. ISEER Value: 3.38

Talking about the number of equipment needed, one can broadly say that a window AC is comprised of a single unit that fits on a window. However, a split AC is divided into two units, one of which is placed outdoors while the other is placed indoors. The indoor unit is called an Evaporator, and the outdoor unit is referred to as a Compressor. These two units are connected through the wall. This affects the installation cost of both the ACs. Window AC, being single units, do not cost much, whereas getting two units fixed through the wall can cost you quite a bit.

Apart from cooling and installation cost, another critical factor to compare the air conditioners is by understanding the working of air conditioning regarding energy usage. To know which AC is the best, it is essential to understand that a window AC consumes 500 to 1,440 watts of electricity to run, whereas a 1.5-ton Split Ac consumes 1,425 watts /hr, 1.425kwh, of electricity. The energy consumed by split ACs may also vary depending on their capacity. One ton of split AC has the maximum load of 1,700 watt, which varies from manufacturer to manufacturer. It typically uses about 1,200 watts of electricity.

(For reader’s clarity: 1 tonne of cooling is the rate of heat removal required to freeze a metric ton (1,000 kg) of water at 0°C in 24 hours. As the enthalpy of fusion for water is 333.55 kJ/kg, a tonne to refrigerate consumes 13,898 kJ/h (or 3.861 kW)

Further, in this regard, it is important to understand that EER (Energy Efficiency Ratio) is the refrigerating capacity of the AC. That refers to the power consumed by it. The cooling capacity of 1 ton is equal to 3.517 kW of power. Both split and window ACs can have high EER ratios.  The major difference lies in the count of units. The window ACs have a single unit whereas split ACs have two (indoor and outdoor).

Inverter vs non-inverter AC

Post all the factors mentioned above, there is another crucial thing to take into consideration. ACs can be operated either with or without an inverter. The significant difference between an inverter and non-inverter AC is the variance in motor speed of the inverter compressor. On the contrary, the non-inverter compressor has a fixed speed. In simple terms, it means that either the compressor works at full or minimum speed.

So far, most of the nuances of an AC have been covered, yet a few aspects are to be acknowledged. Stabilizers are an important part of electrical equipment like ACs and refrigerators. ACs require stabilizers due to voltage issues. If voltage supply fluctuates too much in your area, then stabilizers are a must. The compressor of an inverter AC saves energy as compressor draws most of the power every time it starts since its central functioning never switches off.

5-Star rated ACs

There are other ways to energy saving. A 5-star rated AC is the best selling in India. Per watt of electricity used provides more cooling in such ACs. However, it is evident that even the best window AC in India doesn’t come with 4 or 5-star BEE (Bureau of Energy Efficiency) rating. But, one can easily find split ACs with that sort of ratings.

Confused about what to buy? Window ac or split ac? Read below!


To conclude, it can be said that a window AC unit is a less efficient medium of cooling as they consume more power and deliver less cool air.

Also Read: How to look for best split AC in India

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