LG Air Conditioner Buying Guide

Need a new air conditioner but unsure how to get started on your search? Here, we offer you an extensive guide for getting you toward the ideal LG air conditioner for you. From Mini Split to Window Type to Portable, we’ll help you choose the one most suited for your lifestyle.
In the middle of the left window with a snowy landscape and the right window with a warm feeling of wood, warm wind comes out of the air conditioner. In the middle of the left window with a snowy landscape and the right window with a warm feeling of wood, warm wind comes out of the air conditioner.

Which type of air conditioner is right for you?

LG air conditioners offer a range of features to keep your home refreshed all summer long. Our products will be sure to deliver optimal air conditioning technology.

The three types to choose from are as follows:
*Mini Split
*Window Type

Mini Split

The cooling process of a Mini Split air conditioner uses an indoor and outdoor unit system. It is a typical choice for residential units or small commercial spaces.

Window Type

Built to fit your window frame, LG Window air conditioners offer stellar durability and performance with their modern panel design.


LG portable air conditioners are ideal for single rooms. They provide cool temperatures with energy savings, automatically remove condensation build-up, and are easy to install and store.

How to choose the right size air conditioner for your home

  • You must consider size of the air conditioner before selecting the perfect air conditioner for your place. By size, we do not mean the physical size of the system. Size here means the cooling capacity of your air conditioning unit.

    When an air conditioner is oversized relative to its surroundings, it can cause constant on/off sequences that result in either overheating or overcooling. When this happens, you’ll have hot spots throughout your home. This can leave some rooms cool, and others hot and humid. In contrast, air conditioners that are too small run for too long trying to reach your desired temperature.

    First, when choosing the right size air conditioner for your home, the most vital information you need is the size of the space to cool . You need to calculate the size of the room to decide on the ideal air conditioner capacity.

    Second, you need to understand how much cooling/heating is needed for the space. BTU stands for British Thermal Unit, a measurement of how much energy an air conditioner consumes to eliminate heat from your place within an hour. Correct BTU calculation ensures that the air conditioner will provide efficient cooling without piling up on your electricity bill.

    However, this calculation doesn’t stand true in every case because we didn’t take the ceiling height, number of windows and other such aspects into account. In case you get confused with calculations, seek help from a professional. They will analyze your place and will recommend you an appropriate air conditioner size.

Your guide to accurate installation

It is advisable to entrust a professional technician to install your air conditioner. Such an expert will set the ideal environment to ensure optimal air conditioner usage.

Before reaching out for help with installation, however, there are basic conditions you should make sure your chosen air conditioner type and its environment meet.
The repairman is repairing the air conditioner. The repairman is repairing the air conditioner.

Mini Split

Although Mini Split air conditioners can be installed on any wall, it is recommended to maintain the proper distance suggested by the manufacturer, for efficient operations, noise, and reliability.

Window Type

Since Window air conditioners rely on a power source to operate, heed the distance between the window and the nearest outlet. A certified technician should attend to parts that call for secure wiring.


Make sure to consider the distance between the window and the nearest outlet. The hose from the air conditioner should reach the other side of the window.


Once you've nailed down the appropriate type of air conditioner that fits your space and needs, it's time to examine features offered exclusively by LG.

Get cool faster with
DUAL Inverter Compressor

A yacht cruises in the middle of a sea of waves in the air-conditioned wind.
A compressor is at the heart of an air conditioner, which means having to fuss about its operations, effectiveness, or noise can be stressful and expensive. Among LG’s range of technologically advanced air conditioner offering is the LG DUAL Inverter Compressor air conditioner unit, which relieves you of such concerns. LG’s DUAL Inverter Compressor is topped with technology that distributes cool air speedily. Since it cools the air conditioner rapidly, you can enjoy prompt, comfortable cooling. Moreover, its consistent cooling and heating features are accompanied by reduced noise levels in addition to efficient, minimized energy spending.

Energy efficiency that's worth your time

Click below for energy efficient practices to save on power bills and our planet
  • Reduce concerns over energy spending with DUAL Inverter

    LG’s DUAL Inverter technology does this by adjusting compressor speed according to temperatures. With Inverter-topped air conditioners, save up to 70%* more of your energy consumption than with non-inverter air conditioners. In addition, the DUAL Inverter Compressor Technology provides a 10-year warranty on the compressor for lasting, maximal performance.
    A woman watching the air conditioner in the cool breeze in the thick forest.
  • *Testing by TUV shows LG inverter air conditioner(US-Q242K*) saves up to 70% more energy than LG non-inverter air conditioner(TS-H2465DAO).
    A woman watching the air conditioner in the cool breeze in the thick forest.
  • Active Energy Control grants you effortless control

    With a simple touch of the remote, activate the AEC (Active Energy Control) feature to adjust energy spending to your needs. You can control energy consumption via four levels (which consist of normal, 80%, 60%, and 40%), either on your own or as a family. Other settings like fan speed, temperatures, and such can also be adjusted to your needs. Such energy control enables you to take into account how crowded a room is at the given moment.
    A family sitting on a couch and spending time in the cool air conditioner breeze.
  • Energy monitoring with ThinQ

    From wherever, even from afar, keep track of and maintain a firm hold over your energy consumption levels from the LG ThinQ app. You can easily monitor energy usage through the ThinQ app, whether for daily maintenance or specific purposes like identifying sources of high energy spending to adjust and lower your energy levels, and you name it.
    The connection between the air conditioner and the smartphone in the house
  • *ThinQ functionality may vary by country and product.
    The connection between the air conditioner and the smartphone in the house

Enjoy a new level of fresh air

Air conditioning in the process of turning inhaled air into cool air
Comprised of five thorough steps to trap and get rid of both big and ultra-fine dust, as well as bacteria, allergens, and the like, LG's Complete System for Aircare is a surefire way to freshen up your space.
*The filters configured by country are different.

  • Fill your space with purified air

    Ultrafine Dust Remover eradicates harmful micro-dust in the air, down to microscopic particles as small as 0.1μm*. A micro-structured HAF (High Airflow Filter) captures minute particles without limiting outflowing air, while the Electrostatic Surface Filter collects unwanted dust.
    Filter on top of air conditioning to suck in contaminated air
  • *TUV has verified that the PM 0.1(0.1㎛) particle removal efficiency is 99.9%. (Model S3NM12JA1YB, Particle Size PM 0.1, Result 99.9% in 109 min.)
    *KCL has verified that the PM 0.1(0.1㎛) particle removal efficiency is 99.9% (Model:S3-Q09JA1YA, Particle Size:PM0.1(100nm), Result:99.9% in 65 min.)
    Filter on top of air conditioning to suck in contaminated air
  • A clean fan for a clean breeze

    When the inside of an air conditioner is not well-maintained and uses a fan that contaminates the wind, it'll never blow clean air. New UV LED technology is applied to LG DUALCOOL to keep your fan 99.99%* bacteria-free.
    It sterilizes the cool air emitted by UV LED technology once again.
  • *Verified by TUV Rheinland and KTR that 99.99% of staphylococcus aureus, staphylococcus epidermidis, and Klebsiella pneumoniae were removed from the air conditioner blower fan after being exposed to 4 hours of UV LED lights.
    It sterilizes the cool air emitted by UV LED technology once again.
  • An internal clean that’s automatic

    Regularly checking your air filter is an essential for air conditioner maintenance. A dirty air filter reduces the efficiency of an air conditioner by restricting airflow. For optimal performance, the filter needs to be cleaned every two weeks. Meanwhile, LG DUALCOOL air conditioners have an Auto Cleaning function that automatically dries the AC interior when you turn it off for more convenient air conditioning management.
    Automatically ventilates to remove moisture inside the air conditioner

Simple, easy control

Using a smartphone to control the air conditioner outside.
Stay connected to your air conditioner regardless of your location through the ThinQ app. The smart LG ThinQ application connects remotely to ThinQ-compatible appliances, enabling you to keep tabs on how your devices are running even from outside your household premises. From virtually anywhere, maintain control over your air conditioner by turning it on/off with a simple tap. In addition, you can adjust temperatures, fan speed, and other such settings straight from your smartphone or tablet.
*ThinQ functionality may vary by country and product.

Effective heating solution

A woman sitting on a sofa in her house in the cold winter and warming up in the warm air conditioner wind.
Gone are the days of waiting around for your heater to warm up, or for your air conditioner to cool your environment. LG Air Conditioners satisfy your heating needs while consuming less energy, by heating a wider space in a shorter period of time to create a warm and comfortable living environment. In addition to providing powerful, fast heating, their air circulates and distributes evenly, allowing the entirety of your space to be kept warm.

Safety against voltage fluctuations

Air conditioning outdoor unit impacted by current on the floor but safe appearance
LG air conditioners withstand rough voltage fluctuations without breaking down the way conventional air conditioners tend to. Boasting a significantly broader operational range, the retain stellar functionality even with voltage variations rated at (220/110V) ± 25%.
*LG Internal Test Result : Cooling Mode, Setting Temp. 19℃, Room Condition 32℃(Indoor)/48℃(Outdoor), Voltage Range 220/110V ± 25% Test Model : S4-Q09AA31C, S4-W12JA31A
*The voltage at which the product operated normally as intended behavior is within ±15% of the rated voltage(Guaranteed Voltage). Continuous operation is possible in the voltage range of ±15% or more, but the product's performance may be degraded

Gold Fin™ technology for a performance & longevity boost

Gold Fin inside of out-door unit
The Gold Fin™ ensures that the surface is more resistant to corrosion and enhances the durability of heat exchanger for a much longer period. Furthermore, The boosted performance is also long-lasting, thanks to TUV-verified and upgraded fin technology.

Less Noise

The air conditioning noise is 42dB, as quiet as the library.
Appliances shouldn't get in the way of stillness. LG Inverter air conditioners equipped with quality components and compressors operate at low speeds, producing less noise than non-inverter air conditioners as a result. With such air conditioners that perform exceptionally without disturbing your peace, you can fully relax without missing out on either appliance quality or performance.

Air Conditioner FAQ


What is a suitable temperature setting for my air conditioner?

When you turn on the air conditioner for the first time, set it to a low temperature and use a strong wind setting to quickly lower the temperature in the room. Once your room has cooled sufficiently, 25℃ is the optimal temperature to maintain a cool house and save energy.

What is the difference between an inverter air conditioner and a non-inverter air conditioner?

Inverter air conditioners operate more efficiently than non-inverter air conditioners. Non-inverter air conditioners have compressors spinning at the same speed regardless of temperature, turning off when the desired temperature is reached and turning on again when the temperature rises. Inverter air conditioners operate by adjusting the compressor faster at higher temperatures and slower at lower temperatures, which means they save more energy than non-inverter air conditioners and enable faster cooling and quieter operation.

What is a smart air conditioner?

A smart air conditioner is an air conditioner that can be controlled and monitored through an application using a smartphone or smart speaker with an internet connection. You can control and monitor the air conditioner remotely without being restricted by time or place.
The various useful smart functions of LG DUALCOOL are available through the LG ThinQ smart app. Conveniently turn the LG air conditioner on and off with your smartphone or control the temperature setting and mode remotely without having to be in the same room! Furthermore, energy monitoring allows you to view and manage your energy usage, allowing you to make smarter energy choices. (*This function may not be available in some countries).

How can I clean and manage the air conditioner?

For optimal performance, the filter needs to be cleaned every two weeks. Wash the outer surface of the pre-filter with water or use a neutral detergent for an occasional deeper clean. After washing with water, dry the pre-filter in the shade away from direct sunlight. Clean the UltraFine Dust Filter with a vacuum or a soft brush, but do not clean with water.

How can I save energy while using the air conditioner?

You can save energy by selecting appropriate temperatures when cooling and heating and by regularly cleaning the filters to reduce unnecessary energy wastage.

Can the air conditioner heat my house too?

When cooling, the air conditioner sends cold air indoors and hot air outdoors. During heating, the refrigerant flow direction can be changed to send warm air into the house to heat it. The LG DUALCOOL’s heat pump is more powerful and uniform than other heating appliances, such as radiators or electric heaters, because the DUAL Inverter Compressor™ installed in the LG DUALCOOL heat pump optimizes and operates according to the indoor environment. Therefore, if you own this model of air conditioner you don't need to buy a separate heater.

How do I install the air conditioner?

Among the various types of air conditioners, a professional engineer must install Split type air conditioners because the installation process requires drilling through walls to connect outdoor and indoor units. Window, Wall, and Portable air conditioners do not require pipe installation due to the built-in outdoor unit, so you can install them yourself.