An air conditioner is a device that cools and dehumidifies the air in a room or building.
Note: We might earn an affiliate commission on eligible orders when you purchase products using the below links. These links will redirect to external eCommerce websites.
It works by circulating refrigerant through a system of coils and a compressor, which removes heat from the air and transfers it outside.
Air conditioners can be used in residential and commercial settings and come in various types, such as window units, portable units, and central systems. They can also be used in vehicles.

Split AC, Window AC
There are two types of ACs available, Split and Window AC.
Split air conditioner:
A split air conditioner, also known as a “split AC” or “split system,” is a type of air conditioner that consists of two parts: an indoor unit and an outdoor unit.
The indoor unit typically installed inside the room or building contains evaporator coils and a fan to circulate the cooled air. The outdoor unit, typically installed outside the building, includes the compressor and condenser coils.
The two teams are connected by refrigerant lines, which transfer the cooled refrigerant between the two units. Split ACs are typically more expensive than window units but offer greater flexibility in terms of installation and can be more energy efficient.
Window air conditioner:
A window air conditioner, also known as a “window unit” or “window AC,” is a type of air conditioner designed to be installed in a window or a wall opening.
The entire unit is self-contained and sits inside the window or opening. The unit contains an evaporator, compressor, condenser coils, and a fan to circulate the cooled air.
Window ACs are typically less expensive than split systems, but they can be less energy efficient and may need to be more flexible in terms of installation.
Because the whole unit sits in the window, it blocks some natural light and can be unsightly. They are primarily used in single rooms or small apartments.
Selecting the best air conditioner.
When selecting the best air conditioner, there are several factors to consider:
- Room size: The room or area to be cooled will determine the appropriate cooling capacity needed for the air conditioner.
- Energy efficiency: Look for an air conditioner with a high SEER (Seasonal Energy Efficiency Ratio) rating. The higher the SEER rating, the more energy efficient the unit is.
- Type of air conditioner: Decide whether a window unit, portable unit or split system is best for your needs and space.
- Noise level: Consider the unit’s noise level, as some can be pretty loud, especially the window unit.
- Features: Some air conditioners come with additional features such as programmable thermostats, remote control, and air filters.
- Price: Determine a budget and compare the costs of different models to find the best value for your money.
- Brand: Research the brand, read reviews and check for the warranty on the product.
Ultimately, the best air conditioner for you will depend on your specific needs and preferences. It’s essential to consult a professional to help you figure out the best option for your space and budget.
Cooling capacity of an AC.
The cooling capacity of an air conditioner is measured in British Thermal Units (BTUs) per hour. The BTU rating indicates the heat the air conditioner can remove from the room or cooled area. The more excellent the BTU rating, the more influential the air conditioner is, and the larger the room or space it can cool.
As a general rule, the size of the room and the number of people occupying it are the main factors determining the cooling capacity required. As an available guide:
- A room up to 150 sq. ft. needs a unit with a cooling capacity of 5,000 to 6,000 BTUs.
- A room between 150 and 250 sq. ft. needs a unit with a cooling capacity of 6,000 to 8,000 BTUs.
- A room between 250 and 350 sq. ft. needs a unit with a cooling capacity of 8,000 to 10,000 BTUs.
- A room over 350 sq. ft. needs a unit with a cooling capacity of 10,000 to 12,000 BTUs.
It is important to note that these are general guidelines, and factors such as room layout, insulation, sun exposure and local climate should also be considered when choosing the cooling capacity of an air conditioner. It is always best to consult a professional to determine the best cooling capacity for your needs.
Shop Now:
Looking to purchase an air conditioner for home or office. Here is the list of best selling Air conditioners on e-commerce websites.
Before selecting an air conditioner the below points need to be checked. AC cooling capacity may vary depending on the place where you are staying.
ACs are available from a range of 1 ton to 2-ton capacities. Depending on the room size you need to select the product.
Blue Star 5-Star Air Conditioner IC518DBTU
1.5 Ton 5 Star Inverter Split AC |
Inverter, Dust filter, Auto adjustable, Dehumidifier |
Copper condenser coil |
Hitachi RSOG518HDEA
1.5 Ton 5 Star Inverter Split AC |
Inverter, Antibacterial coating, Dust filter, De-humidifier, Air purifier |
Copper condenser coil |
Sanyo SI/SO-15T5SCIC
1.5 Ton 5 Star Split AC, Dual inverter |
Inverter, Dust filter, De-humidifier, Air purifier |
Copper condenser coil |
Daikin FTKG50TV
1.5 Ton 5 Star Split AC |
Inverter, Antibacterial coating, Dust filter, Anti-microbial filter |
Copper condenser coil |
Panasonic CS/CU-NU18WKYW
1.5 Ton 5 Star Split AC |
Inverter, dust filter, antibacterial coating, dehumidifier, Wifi control, PM 2.5 Filter |
Copper condenser coil |
Voltas 185 LZH
1.5 Ton 5 Star Window AC |
Dehumidifier |
Copper condenser coil |
LG JW-Q18WUZA
1.5 Ton 5 Star Window AC |
Inverter, dust filter, wifi control, Digital LED |
Copper condenser coil |
LG LS-Q18GWZA 5-star Air conditioner
1.5 Ton 5 Star Split AC |
Inverter, Dust filter, Dehumidifier |
Copper condenser coil |
AmazonBasics PBAC18K5INV201
1.5 Ton 5 Star Split AC |
Inverter, Antibacterial coating, Dust filter, Dehumidifier, Air purifier |
Copper condenser coil |