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AC Buying Guide

Different Type of Airconditioners

ACs for Extreme Weathers

AC Capacity Guide

ACs for Polluted Cities

AC Maintenance Tips and Information

Smart AC Buying Guides

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Air Conditioners Information and Reviews

Last Updated on October 1, 2021 by Ashwini G

Like smartphones and computers, air conditioners have become a necessity in our everyday life. An air conditioner is a machine or system that treats air inside an enclosed area via a refrigeration cycle wherein warm air is removed and replaced with cold air. Whether at home, in a vehicle, or office, an ACs ultimate objective is to provide comfort to the user by altering the properties of the air.

It is essential to learn the basics of an air conditioning unit so that you can make an informed decision when it comes to purchasing a new one. Our detailed guide can help you to know the different types of air conditioning units, their features, and benefits along with their proper use.

Components of an Air Conditioning Unit

Most air conditioners have the following mechanical components –

  • Condenser
  • Compressor
  • Blower
  • Evaporator coil
  • Chemical refrigerant

Types of Air Conditioners


Central Air Conditioners

Includes an external condenser unit fitted outside the home expelling heat, and an evaporator coil that cools the air inside the home. These are further subdivided into the split central air conditioner and packaged central air conditioner.


  • Integrated with the furnace system taking advantage of the furnace filter.
  • Option to include any additional air purifying system.
  • Cost-effective solution in comparison to ductless AC.

Split Air Conditioner or Ductless Units 

Contain multiple heads or indoor units to cool the air. The refrigerant tubing, power cable runs, and condensate drain run between the outdoor unit and indoor heads.


  • Each head is allotted to separate rooms for cooling, which allows setting the different temperatures for each such location.

Portable Air Conditioners

Windowless air conditioner which requires venting to remove moisture and hot air generated by the unit.


  • Effective in instantly cooling a single room.
  • Easy and quick setup.
  • Portable from one room to another.

Window Air Conditioners

Fits in an open window frame in the room. Absorbs warm air from inside the room and runs it over an evaporator coil before throwing it back inside.


  • Easy to install and effective for cooling a single room.
  • Appropriate for older apartments.

Essential Features of Present Generation Air Conditioners

  • Anti-bacterial filter – Eliminate microorganisms such as dust mites, pet dander, bacteria, etc. and other harmful substances.
  • Heating and cooling – besides cooling, it also allows staying warm and cozy during the winter season with the built-in heater.
  • Dehumidifier – remove excess moisture in the air during monsoon season.
  • Auto-clean function – prevent the growth of microorganisms by keeping moisture away.
  • Sleep Mode – saves power bills by reducing cooling every hour.
  • Cool Coils – copper coils cool faster, are easy to maintain, and have a longer lifespan.

How to Select the Right Size?

Below we have listed certain factors that will help you in choosing the right sized air conditioner for your home.

  • Size of your home
  • The types of windows you have
  • Number of rooms in your home
  • Insulators in your walls and ceiling
  • Exposure of your home to external elements

Armed with this knowledge, it then becomes easier for an Indian consumer to select the right AC for their home or office.

Team at Rejure has already compiled a list of ACs that fit varying conditions, just dive into it to buy the perfect air conditioner.

Air Conditioners Information and Reviews

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