Step-By-Step Guide On Buying the Right Air Conditioner

In this post, you will be guided with the step-by-step procedure on how to come up with buying the right air conditioner matching your needs. So, keep reading!

Looking for the right air conditioner, whether for your home or office, isn’t an easy thing. Instead, it would help if you were extra careful to find the best one. And because air conditioning plays a vital role in your place, choosing the one that would suit your cooling needs matters a lot. So, better follow the right path leading to the best air conditioner. 

Let’s get into the steps on how to buy the right air conditioner. 

Step 1. Choose the right type of air conditioner.

Of course, there isn’t just one air conditioner, but there are different types that you should consider. Are you familiar with these various types? If not, here they are, along with reviews of the top options you can choose from:

Window Air Conditioners

This one is the most common room air conditioner that is designed for double-hung windows. It is straightforward to install and also easy to remove. It pulls in the hot air from the room and runs it over the cooling coil before returning, blowing it back to the office. You can install this type of air conditioner permanently if you want to. 

The window air conditioner is best for people who want to enjoy cold air only in the cheapest way. It could cool a single room. You can choose from these top picks:

  1. LG LW8016ER Window Air ConditionerLG LW8016ER Energy Star Window Air Conditioner Review

This window air conditioner can cool a room of 340-square-foot, and it has energy-saving features too, along with plenty of settings you would surely love. This one has an 8000 BTU rating, and it could dehumidify a room by almost 2.2 points per hour. Said, this will not just make your room cooler, but it could also take some of the stickiness out as well. 


  • very affordable
  • energy-saving
  • rated for large rooms


  • a bit loud 

  1. Friedrich Chill Series CP08G10B Window Air ConditionerFriedrich Chill Series CP08G10B Window Air Conditioner

Another great option to consider is from Friedrich brand which ranges in BTU rating from 5200 to 24000 BTU. You can find one for your room whether 150-square-feet or 1400-square-feet. With regards to control, you could get round the clock timer so you can program run times and the four-way air-flow control. This unit comes with a remote control to change the fan or temperature setting. 


  • Energy Star Rating
  • remote control included
  • 24-hour timer
  • Affordable
  • Several BTU ratings


  • not as quiet as some

  1. LG 115V Dual Inverter Smart Window Air ConditionerLG 115V Dual Inverter Smart Window Air Conditioner

This window air conditioner comes in various sizing that ranges from 14000 BTU up to 22000 BTU making it so powerful to cool rooms from 800 to 120 square feet. It could definitely cool your entire living space if you live in a studio or a one-bedroom apartment. 

This is also an efficient option as it lowers the electricity bill by almost 25%. It has four cooling and fan speeds, and it features the Auto Cool function, which optimizes cooling. Plus, it features a 24-hour timer to set a schedule when you want the air conditioner to be off and on. 


  • remote app control
  • comes in three TU levers for bigger rooms
  • smart features
  • quiet
  • sleek-looking
  • Wi-Fi connected


  • a bit bulky
  • only suitable for large rooms
  • a bit pricey

Through the Wall Air Conditioner

Another type of air conditioner is the wall air conditioner. This one is practically similar to window units; however, you install it through a wall instead of a window. The unit would come with a sleeve used to support the unit’s weight inside the wall. 

It is a good option for people who want to maintain using the existing windows while having a cheap air conditioning system. Its newer technology allows it to give off more cooling power as well. 

Here are some best picks:

  1. Koldfront Through the Wall Air ConditionerKoldfront WTC8001W 8,000 BTU Through The Wall Air Conditioner with 3500 BTU Heater

This amazing air conditioning system, created by Koldfront, comes with remote control intended for an easy operation like changing speeds or turning the unit on and off. It has three fan speeds and 4-way air directional louvers plus 4 operation modes. It also features a sleep function wherein it could adjust to the temperature and return it to the set one after 6 hours. 


  • very quiet
  • 3 speeds to adjust to your needs
  • easy to use a remote control
  • sleep function 


  • instructions for this unit are not too clear

  1. Keystone Follow Me LCD Remote Control Through-The-Wall Air ConditionerKeystone KSTAT14-2HC 14,000 BTU Through-the-Wall Air Conditioner

With this one, cleaning the filter is a lot easier ever. There is just a need for you to pull out its filter, rinse and dry it. Or you could use a vacuum in eliminating all the dust. This, through the wall air conditioner, also features multiple options. It has 3 pre-programmed fan speeds and 3 cooling modes too. You can also save a lot on electricity costs because of the Energy-saver mode or the Auto Option to ramp up and down the fan speed. The remote control also has a thermostat, so you can always adjust the temperature anytime. 


  • easy to clean and maintain filters
  • easy to use and adjust
  • can cool the entire house
  • can save a lot of energy


  • grille might pop out after a while of using this unit

  1. Emerson Quiet Kool Through the Wall Air ConditionerEmerson Quiet Kool Through-The-Wall Air Conditioner

This is indeed an impressive option because of the programmable timer and sleep mode. Its sleep mode could always keep on adjusting its temperature, making sure that you are comfortable at night. It could also let you save a lot of energy. The programmable 24-hour timer could also be easily set with its remote control, onboard controls, voice controls, or the tablet or phone app. 

It also lacks noise definitely keeps the house quiet. Two air exhaust vents could be combined with the 3 fan speeds and help you achieve the 8-way flexibility. 


  • easy to use
  • very flexible
  • works very quietly
  • energy saver
  • multiple methods timer


  • a bit expensive

Portable Air Conditioner

Mobile and portable. The Portable air conditioner is a floor system, particularly with wheels, which cool rooms down by removing the heat from the air and dehumidifying it, returning the air a lot cooler into the same space. It is an air conditioner intended for homes wherein building regulations or window configurations prevent the installation of the window units. 

Some best options are the following:

  1. Whynter 14,000 BTU Dual Hose Portable Air Conditioner (ARC-14S)Whynter ARC-14S 14,000 BTU Dual Hose Portable Air Conditioner, Dehumidifier, Fan with Activated Carbon Filter

This one offers a bit large BTU of 14000, making it capable of cooling more space like over 700sq.ft. It works in a way that requires no room air for it to work with a condenser. Its dual hose design also makes it better than the single hose system since it lets its own air circulation. 

It also saves you the stress of having to drain the water buckets. The unit is engineered to automatically drains water exhausted from the room air automatically and saves you both manual labor and time. This is referred to as the Auto-Evaporation System. Plus, this unit is very flexible because of the thermostat and the 24-hour remote control. 


  • good thermostat turning the machine off if the temperature drops to a certain degree
  • very flexible and efficient
  • environmental-friendly
  • saves more electrical bills


  • a bit expensive
  • a standard level of noise

  1. Honeywell MN10CESBB 10,000 BTU Portable Air ConditionerHoneywell Black MN12CESBB Portable Air Conditioner

This is another great option for portable air conditioner type. It is a new type of cooling appliance with modern features having a full-function remote control to operate the unit even from a distance. It also comes with 10000 BTU that can cool a room with a size of 400 square feet. 

It works as a humidifier too. It dehumidifies at about 75 pints of water every day in a moist environment. It also has a programmable timer or a caster wheel, which aids mobility, and the auto-drain system, draining the water through the evaporation system. 


  • very versatile product
  • very quiet unit
  • uses less power or energy
  • easy installation


  • only a single hose system leading to loss of efficiency
  • the machine provides a surge of noise

  1. Shinco 10,000 BTU Portable Air ConditionerShinco 10,000 BTU Portable Air Conditioner

This is a portable air conditioner pick that comes with 10000 BTU which could keep the temperature of an area at about 300 square feet cool. It boasts its self-diagnostic function which could automatically diagnose itself and let you be guided on how to fix the problem. 

This unit works as an auto-evaporation system, which could automatically recycle the water exhausted from the room air and saves you from manual labor. Also, this one is designed with an anti-freezing system that would prevent the unit from forming ice. 


  • very economical option
  • easy to install
  • superb self-diagnostic feature


  • high noise level

Ductless Mini-Split Air Conditioner

This one is considered the most famous of all the other devices because of its high-efficiency mechanisms. This unit would give you the best features for your money. Ductless Mini-Split Air conditioners usually operate by having a main outdoor system with multiple mini hubs throughout the home to deliver cooling throughout. 

It features a wall-mounted coordinated system that allows every room to be climate controlled intended for maximum flexibility. It is also extraordinarily quiet and low profile. It could be placed in special strategic locations in the entire home. 

Here are some options for this unit:

  1. PIONEER WYS020GMHI22M2PIONEER WYS020GMHI22M2 Ductless Mini-Split Air Conditioner

This one is indeed an option with superb features and a unit that is definitely meant to last long. The unit features a small design along with a hidden LED display intended for ease of monitoring. You could meet your various cooling and even heating needs. The manufacturer also offers an excellent warranty on different parts of the unit 


  • very silent operation
  • controlled by a remote easily
  • compact design for small spaces
  • multi-speed fan motor
  • heavy duty galvanized metal for durability


  • tricky installation

  1. Innovair Air ConditionerInnovair ductless mini split Air Conditioner

For a versatile model, this one is your best choice. This model is considered one of the finest mini-splits out in the market today, and it is very famous for being an all-rounder. The said product comes with various modes to serve superb efficiency. It is also ETL-certified, which enhances its reliability. The unit boasts a user-friendly design allowing you to make certain adjustments by utilizing a wireless remote control. 


  • compact design and user-friendly
  • perfect for various applications 
  • wireless remote for easy control
  • energy efficient


  • not impressive customer service

  1. Senville SENL-24CD Mini-Split Air Conditioner Senville SENL-24CD 24000 BTU Ductless Mini Split Air Conditioner

This unit offers 24000 BTU and 15 SEER rated, making it capable of cooling a huge room or even a higher ceilings room than normal. It has a respectable BTU rating indeed. And this unit also operates on 220 VAC, and it uses an R410A refrigerant. Plus, the unit is also equipped with a heat pump. 


  • superb BTU rating
  • inverter compressors that could run at different speeds
  • incredibly efficient 
  • very quiet


  • doesn’t come pre-charged with a refrigerant

Central Air Conditioner

And finally, this one could be your best whole-home solution. Central air conditioner pumps cool air through ducts to every room in the building. This type might be a bit expensive but it is much more convenient instead. This type also keeps the entire house cool. Along with zone controls, it combines the convenience or a whole house system having the localized controls of portable and window ACs. 

Also, it includes thermostats in every room so you can precisely manage the temperature anywhere. And this versatility could be handy for sunny or poorly insulated rooms. 

And for your options, consider the following:

  1. Lennox Signature Series XC25 Lennox Signature Series XC25

This unit is considered the most efficient split-system central air conditioner having a 26 SEER rating. It easily integrates with solar to reduce the need for energy being generated by coal-fired plants. A 10-year limited warranty covers all its parts. 


  • solar integrated
  • 10-year limited warranty
  • 26 SEER rating for superb efficiency 


  • no unit replacement coverage
  • costly and hard to get parts

  1. Amana AVXC20 & Daikin DX20VCAmana ASX14 Central Air Conditioner

These models are tied not just in terms of efficiency, but they are also the same. These units have a higher SEER rating, and they are variable-capacity air conditioners. Inverter technology is top-notch, and great warranties are also available. Amana would offer a lifetime warranty on its compressor and a 12-year unit replacement warranty on Daikin. 


  • lifetime warranty
  • inverter technology
  • very efficient


  • slight dependability

  1. Trane Central Air ConditionerTrane Central Air Conditioner

This one is another cost-effective solution if you are looking for high SEER units. Its generic parts could be fitted, making this a great choice for the majority. It is also average in terms of noise performance. The installation is also easy, so that you wouldn’t worry much about it. 


  • good all-rounders
  • low maintenance costs
  • good SEER ratings


  • a bit loud unit
  • not impressive customer service

Step 2. Physical and Structural Restrictions

Of course, now that you are familiar with the different types of air conditioners and already have top options to pick from, don’t forget that there are still numbers of factors to consider. Next in line is to consider both the physical and structural restrictions. 

Here’s what you should know:

Physical Space

Take note that several issues might happen if you put an air conditioner that is too powerful for a room in which it is placed. The unit would alternate between cycling on and off a lot often. Some of these issues include:

  • high levels of humidity in the room
  • consume higher amounts of electricity, early wear and tear of the machinery

Also, the room might not be properly cooled if the unit is underpowered and too small. It might as well increase energy costs. So, it is best to choose an air conditioner’s suitable size by measuring the room or space that you intend to place the unit in. 

Air Conditioner Size

To determine the right size of the air conditioner, you need a measuring tape. Follow these steps:

  • measure the room’s length and width in feet
  • multiply the numbers to get the square footage

After this, you can already shop for the right size of the AC. But, you still need to match the square footage to the correct BTU of the air conditioner. The higher the BTU number, then the greater the cooling power of the AC. 

Structural Restrictions

Based on the type of apartment or house you have, there is a certain legal restriction on the type of AC you could install. Some apartment complexes and residential zones might not allow you to install window air units since a part of it hangs out the window. 

You might also not install through the wall units or ductless mini-splits since these require structural changes to the walls. Well, portable air conditioners are allowed because they don’t hang out the windows, or there is no need for installation. 

Air Conditioner Buying Guide

Step 3. Identify the Short List of Needs

So, what do you exactly need for an air conditioner? Here are sets of questions to consider:

Q: Do you consider heavy installation?

A: Extensive installation might be needed by ductless mini splits and central air conditioners and must be done by professionals. Other types need minimal efforts like portable and window air conditioners

Q: Do you want an AC that could be moved easily?

A: For some, it is essential to have a cooling unit that could be easily moved and so the portable air conditioner is the only option for this. 

Q: Do you want to conserve much energy as possible?

A: If conserving energy is important, then choose a unit that keeps the expenses low. Take note that a central air conditioner is the one that costs most, and the cheapest ones are the through the wall and window air conditioners. Portable and ductless fall in the middle. 

Q: How about the level of noise?

A: The decibel scale differs widely in ACs. Central air conditioners are considered the quietest, followed by ductless mini-splits. Air conditioners are a bit tolerable through the wall and window because the noisiest parts are located in another room or outdoors. And portable air conditioners are considered the loudest and could be as loud as the vacuum cleaner. 

Final Thoughts

Now that you’ve learned important details about the various types of air conditioners, along with options to choose from, and you are as well provided with factors to consider, it is now the time for you to make your final decision on whether which air conditioner is the right one for you. Just don’t forget this guide and happy shopping!

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My name is Ryan. I have had a hard time dealing with my allergies. Happily, I found that an air purifier was effective to ease my allergy symptoms. I spent a lot of time researching the best air purifier. I know how hard it can be to find the suitable one. During the reading period, I also read a lot about humidifiers and dehumidifiers. I learned the mechanisms behind the technologies as well as the manufacturers and organizations within the industry. I now feel convinced that I have built a guide that shows you all you need to know about air purifiers, humidifiers, and dehumidifiers. So I came up with the idea of creating this website.

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