5 Best 18000 BTU Air Conditioners


Have you been looking for the best buying guide for the best 18000 BTU air conditioner? Welcome to the right page.


This Powerversity guide will ensure that it dishes out valid and accurate information. Also, for ease of understanding, this guide will be in sections.

An air conditioner is an electronic equipment that helps to keep a cool environment and remove heat from the environment. This equipment uses three main features: work and the resultant heat, which becomes cool air.

Furthermore, these pieces of equipment are the condenser coil, the evaporator coil, and the compressor. They work hand in hand to convert the gas to liquid and otherwise, and in the process, it absorbs the heat inside the room to release cool air.

However, it is advisable to use the AC only sometimes, The air conditioner might be so beneficial, but it has its limitations. This is because too much air conditioning can cause your skin to be left without moisture, leading to dry skin, skin breakage, dry lips, and other skin irritations.

In addition, you need to know that air conditioners come in different types, and sizes. They have both general and additional features.

Let us have a look at what we will see in different sections.

Firstly, I will give the features and factors to consider when buying an air conditioner. Thus, you will know what to worry about and what not to worry about.

Next, there will be a tabular representation of my Best 18000 BTU air conditioner stating their specifications. In addition, I will explain each of these products giving valid details on them, and state their pros and cons.

In other words, each product’s benefits and likely limitations. Finally, I will dish out answers to some relatable questions.

Then, I will give my final thoughts.

Best 18000 BTU Air Conditioner: Features And Factors To Consider



One of the features of an air conditioning system is the dehumidifier. As the name implies, the dehumidifier helps to reduce the moisture around the environment.

It can work to cool the environment and do multiple tasks like drying wet clothes, running your bath, and others. Hence, it is of more advantage.


Secondly, we have filters. Filters in the air conditioner help to prevent dust, dirt, or any form of microorganism from entering the air conditioner talk less of entering the room.

Moreover, all air conditioners feature a removable and washable filter, which means cleaning is very easy, and cleaning from time to time is advisable to avoid blockage or any damage.


The compressor is one of the three features that work inside the air conditioner to produce cool air. This is the part that converts the gas into liquid.

Furthermore, it can convert the gas from a low-pressure to a high-pressure gas leading to a high-temperature level.

Condenser coil

The condenser coil is another feature of an air conditioner that works with the compressor. However, the condenser coil helps to cool the gas with high pressure and converts it back into a liquid, while the evaporator uses the result from this process to work.


From the details in our condenser coil, the evaporator has to be connected to the condenser coil. Interestingly, it is connected to the condenser coil with a very thin pipe.

Also, the evaporator converts the high-pressure gas into a low-pressure liquid from which the refrigerant takes the heat to cool birth air.


The thermostat in an air conditioner helps retain the temperature of the cool air and the heat in the system. Subsequently, you can set it manually apart from the auto feature.

Factors To Consider

Cooling Capacity

One of the factors to consider is the cooling capacity of the air conditioner. The BTU – British Thermal Unit lets you know the cooling capacity. More so, to know what right capacity you must get, you must consider the size of the room.

Hence, you will not have any form of complaint about the air conditioner not working when you have an air conditioner with less capacity compared to how large the room is.

Energy Efficiency

Another important factor to consider is the energy efficiency of the air conditioner. You will want to avoid any issues where your electricity bill will be so high, leading to unexpected and extra expenses.

Also, it is suitable and advisable to get an air conditioner that is energy starred to be sure that you are not getting a product that will lead to your frustration due to the extra power it uses.

Installation And Maintenance

Going further, installing the air conditioner in the wrong way can limit its performance and functionality of the air conditioner. Therefore, if you cannot install them yourself, it is advisable to get a professional person to do so.

More so, it is important that you know what it would take and require to maintain the air conditioner. Again, you must always follow the instruction manual to maintain the air conditioner to avoid any form of damage.

Cooling Speed

Subsequently, the cooling speed is another factor to consider when purchasing an air conditioner. One of the things that can lead to a high electricity bill is the speed and level of temperature.

However, the thermostat allows you to set the temperature by either increasing or reducing it so that you can always increase or reduce the speed to avoid a high electricity bill.


Finally, we have the price as the last factor to consider. ACS comes in different brands, sizes, capacities, and features. Therefore, their price range differs.

Moreover, the price of the AC you are getting depends on all of these things. First, you should have checked the features and made a comparison, and when you have found just one, you can always compare it with your budget.

But, it is best to choose quality over budget if it is not so high than your budget. Thus, you will not have any form of regret after purchasing based on budget to find out that the one you left has more quality.

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Best 18000 BTU Air Conditioner: Specification And Comparison Table

ProductsDimensionsItem WeightsVoltagePower SourceBrand
OLMO Alpic 18000 BTU Ductless Air Conditioner‎41 x 19 x 37
‎129.7 pounds‎230 VoltsCorded ElectricOLMO
DELLA 18000 BTU Mini Split Air Conditioner‎37 x 8.82 x 12.44 inches‎26.5
230 Volts‎Corded ElectricDELLA
LG 18,000 BTU Air Conditioner26.22 x 25.89 x 17.72 inches110.2 pounds230 VoltsN/ALG
Pioneer Air Conditioner38 x 8.5 x 12.5
230 VoltsN/APioneer
Senville LETO Series Air Conditioner48 x 40 x 40
220 VoltsN/ASenville
Click here to buy any of the above-listed Split Air Conditioners

5OLMO Alpic 18000 BTU Ductless Air Conditioner


The “OLMO Alpic 18000 BTU Ductless Air Conditioner” is the 5th of my Best 18000 BTU Air Conditioners.

This air conditioner is a type of AC that does both cooling and heating of the environment. More so, while functioning, the air conditioner is very quiet, so it makes your sleep very convenient without disturbance.

However, to install this air conditioner, you must get a professional to prevent improper installation that will limit the performance of the AC. Additionally, the AC features a LED display, a self-diagnosis that will detect when the AC is faulty, a pre-heating mode, and a sleep mode that allows the AC to go off automatically when it is not in use.

Also, it features a defrost mode that helps to de-freeze the coil covered in ice when the outdoor unit is so cold for better functioning of the air conditioning. Again, it carries much weight, and it is a manageable size.

Finally, the compressor features a 5 years warranty. In contrast, the parts feature a 2-years limited warranty.


  • Multi-functionality.
  • Additional features.
  • Auto-sleep mode.
  • 5 years warranty.


  • It has weight.
  • Difficult to install.

4DELLA 18000 BTU Mini Split Air Conditioner

image from amazon

The “DELLA 18000 BTU Mini Split Air Conditioner” is the 4th of my best 18000 BTU air conditioners.

This air conditioner features a heat pump and a dehumidifier, which means the AC is a multi-function AC that does both cooling and heating. More so, installation is made easy with the provision of the full kit in the package.

Interestingly, this air conditioner features a smart sensor that can detect when the room temperature is not adequate and will also ensure that the room temperature is balanced for your convenience.

Most importantly, the air conditioner does not make noise while functioning. Thus, you will feel very comfy and not irritated by any noise during your sleep or work time.

Notwithstanding, the air conditioner will not make one part cool and leave the other part but will ensure that everywhere gets adequate cooling and otherwise. Again, it comes with a remote control for easy access to the AC.


  • Noise level.
  • Remote control.
  • Multi-functionality.
  • Comfortable.
  • Smart sensor for safety.


  • No stated warranty.
  • No instruction guide/manual.

3LG 18,000 BTU Air Conditioner


The “LG 18,000 BTU Air Conditioner” is the 3rd of my Best 18000 BTU Air Conditioners.

If you are worried that the air conditioner will make noise while it is functioning, then you do not have to worry anymore because this AC does not make noise while functioning.

Furthermore, it features an auto-sleep mode that allows the air conditioner to go off when it is not in use. Subsequently, this AC is energy efficient, which means it does not use much power.

Therefore, you do not have to worry about a massive increase in our electricity bill. In other words, it will save you energy and money.

Additionally, the LG air conditioner allows you to control your AC from anywhere with the use of Alexa and Google Assistant. Hence, you can change the settings, adjust the temperature level, change the mode, and others.

The cooling system is supported by the auto-cool mode and the four fans alongside their speed. Also, installation is quite easy for this air conditioner.

Finally, it features a 1-year warranty.


  • Easy to install.
  • Noise level.
  • Energy efficient.
  • Auto-sleep mode for safety.
  • Control with Amazon Alexa and google assistant.


  • Low warranty.
  • Slow in sleep mode.

2Pioneer Air Conditioner

Amazon image

The “Pioneer Air Conditioner” is the second of my best 18000 BTU air conditioners.

This air conditioner’s heat pump and inverter are energy efficient, which means they use little power to function. Therefore, it saves energy and money, which is an advantage.

Also, while functioning, the air conditioner does not make any noise that will cause any form of disturbance or irritation while sleeping or working. Thus, it is suitable for both personal and commercial use.

More so, it is a type of AC with multi-functionality. It does both cooling and heating. In other words, it dehumidifies and features a heating system able to defrost the cool environment when needed.

Moving forward, the air conditioner comes with everything needed for installation and every other piece of equipment for the AC, like the remote control. Finally, it features free tech support, while the compressor and the parts of the air conditioner feature a 5-year limited warranty.


  • Noise level.
  • Remote control.
  • Energy efficiency.
  • It is easy to install.
  • It is easy to use.
  • Multi-functionality.
  • Free tech support.
  • 5 years warranty.


  • Not available.

1Senville LETO Series Air Conditioner


The “Senville LETO Series Air Conditioner” is the first of my best 18000 BTU air conditioners.

This air conditioner does not only permit a remote control to have access to the air conditioner but also allows you to use the app control to control the air conditioner. However, the app for the AC is from the brand, so you can adjust the temperature and do other things while you are away as well.

Notwithstanding, it features a voice control as well that gives access to control the air conditioner just like the app control as well. More so, this AC features a 4-in-1 mini split system containing the heat pump, dehumidifier, fan function, and turbo function.

Also, the material and design of this air conditioner are made of top quality. First, the material is durable, which means it will last longer.

Next, the design is attractive and adds beauty to the room or environment. Thus, it is suitable for bedrooms, living rooms, and commercial places like restaurants, suites, and the like.

In the packaging of the AC, you will find an installation kit for easy installation, an air handler, a condenser, and a remote control. However, it is important that you get a professional to do the installation of the air conditioner.

Finally, it features a 5-year warranty on both the parts and the compressor.


  • Noise level.
  • Remote control.
  • Energy efficiency.
  • 5 years warranty.
  • Installation kit.


  • No manual\instruction guide.
  • Filters take work to clean.

Frequently Asked Questions

1. What Room Size Will A 18000 BTU AC Cool?

While an air conditioner of about 16000 BTU can cool a room of 700 to 800 square, an air conditioner of 18000 BTU will cool a room of 800 to 1000 square feet.

2. What Is The Power Consumption Of An 18000 BTU AC?

An air conditioner of 18000 BTU uses 1800 watts, which means it is energy efficient as long as you do not always have the temperature high. As a result, you can constantly tweak it from time to time.

3. Does High BTU ACs Use High Power?

In the case of an air conditioner, the higher the BTU, the more power the AC consumes due to its functionality, features, and internal system weight.

4. How Much Electricity Do ACs Use Per Hour?

An air conditioner’s electricity depends on how frequently you use it and how hot it is, but a 5-star AC will use 1.6 units per unit on average.

5. Will Higher BTU Make The Room Cooler?

The higher the BTU, the cooler the room becomes. However, excessive coolness or use of an air conditioner has drawbacks, such as causing skin irritations and damage, such as dry skin, skin breakage, and the like.

Best 18000 BTU Air Conditioner: My Final Thoughts

Above is my pick for the best 18000 BTU air conditioner, with its specifications, benefits, and likely limitations.

However, with all this information, I hope you can pick the best 18000 BTU air conditioner you want. Nevertheless, I strongly recommend the “Senville LETO Series Air Conditioner” as my best 18000 BTU air conditioner.

To make an easy purchase, I have created a button where you will find the link. Hence, when you click the link, you are going to the store.

I hope you found these best 18000 BTU air conditioner buying guides helpful. If you found the review helpful, kindly review this buying guide using the “Leave a Reply” form at the end of this page.

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Akin-Ojo Oluwatosin is a technical writer at PowerVersity.com. She is currently pursuing a Bachelor's degree in Criminology & Security Studies. Tosin enjoys both thinking and creativity. When she is not writing, she reads, sings, or watches musical programs. Tosin writes reviews, buying guides, and best-pick articles for PowerVersity.com