Best Central Air Conditioner

The Goodman GSX160361 3-Ton 16-SEER Air Conditioner is our best central air conditioner, which comes with a filter dryer that has been expertly designed for you to get lower bills monthly. As for its parts, the scroll compress is quite energy efficient as well for this cooling unit. It is designed to be an outside AC unit that is coupled with an indoor unit.

Our step-up pick is the MRCOOL DIY 18K-BTU Mini-Split Air Conditioner and this central air conditioner has a variable speed so it can help you save a lot of energy in the long run by turning it on a lower speed to consume less energy in the long run and to have lesser impact to your energy bill later on. If you want an easy DIY installation then this unit is a great pick.

The budget pick is the Pioneer WYS012-17 Air Conditioner Inverter+ Ductless and as a split system unit, it can adapt to your environmental conditions and cool your room if it is within 350 to 450 square feet of size. In addition to that, it can also be a heat pump when needed. Most homeowners can have this central air conditioner installed easily by an expert.

A Little Background

The central air conditioner, unlike the traditional window type air conditioner, takes a lot of money and guts to install. This is because it goes around your house and not just in one room. There are many more parts that are needed when you want to install a central air conditioner because it has to go around your house and have an outside unit that is properly maintained.
However, the central air conditioner is a good choice if you want year-round cooling without having to stick to just one room only. If you live in a place where the summer heat is very extreme and you want each and every room of the house to be cooled down then the centralized A/C unit is the best option for you.
To set up a central air conditioner unit, you need two units: the indoor and the outdoor unit. The indoor unit connects with the outer unit, which is the condensing unit. This union will create the necessary cold air due to the coils that are in the indoor unit.
The units will eventually spread out the cold air with the use of ducts that are setup around the house in the ceiling and at the bottom floors strategically. An HVAC personnel may be able to help you setup the whole thing if you want to put constant cold air in your house with the use of a central air conditioner.
The most important part of the central air conditioner is the outer unit or the compressor. This powers up your central air conditioner system and connects with refrigeration lines onto the inside unit, which is the furnace.
An indoor coil sits on top of the indoor furnace and then spreads out all of that cold air around your house with the air ducts that you have installed around the house. The central air conditioner is also not complete with a thermostat because it helps to manage your temperature at various times of the day.
Most central air conditioners fall into either of the two types: split style or packaged. The split style central air conditioner is the most common thing we have in mind when it comes to central air conditioners because of the outside unit and the indoor coil unit. However, in a packaged central air conditioner, that is not the case, since all of the units are indoors in just one location and not split apart.
The EER plays an important role for determining if an appliance is energy efficient. While it is true that the EER of the central air conditioner is significantly higher, it still depends on how much you use it compared to a regular window type air conditioner. This is why you need to consult a specialist to make sure you are installing the right air conditioner for your home.
Nearly all types of air conditioning systems can be costly, but that depends on different factors, such as the size of your room or area and the type of air conditioner you have. Most central air conditioners are usually more energy efficient than window type ones. The concept is much like buying grocery items in bulk rather than in small retail sized packaging – you save more when you buy more.
Having a quiet unit helps to give you a better sleep at night. This is highly important if you live in a house that has infants or children. This is also important if you are susceptible to waking up in the middle of the night for something noisy.
Most people live in a place where summers can be super hot and the temperature readings and weather forecasts are unreliable. This is why a central air conditioner can help you solve problems when it comes down to even heating. Instead of relying on one window type unit in just one room, you can get an even heating experience all year round with the help of a central air conditioner.
If you want to buy a central air conditioner, you need to consider its BTUs. If you have a smaller home, you can go for something with 5,000 to 10,000 BTUs but if you have a really large area to cool down with an central air conditioner, you might consider somewhere between 20,000 to 30,000 BTUs, because these are usually made for commercial or small offices due to their cooling power.
A central air conditioner has a filter that you must also clean and check (and replace if needed). The main purpose of an air filter for any AC unit, such as your central air conditioner, is to keep all of the airborne particles away to have a cleaner indoor air. Replacing it or cleaning it if it is washable is important to maintain the AC unit’s stability and cleaner operation.

How We Picked

If you want the best central air conditioner, you should look for the following features:
Coverage: the central air conditioner should cover a large enough area for your house so that it will not have trouble or expend too much power when you run it. Most central air conditioners are designed for up to 2,000 square feet on the average depending on the size of your home.
Inverter type: most modern central air conditioners today have an inverter technology, which means that you get more energy savings in the long run due to its efficiency and technology that allows you to set a variable speed for your unit.
Ease of installation: it can be intimidating to install a central air conditioner by yourself, so make sure that the unit has all the necessary parts to get you started.
BTUs: higher BTUs for a central air conditioner means that it is better for larger homes. Make sure you check the BTU of a unit before you buy it so as not to get a unit that is not enough to cool your area.
Eco-friendly: most modern central air conditioners today use eco-friendly materials to cool and refrigerate your home, compared to old models. This makes them not only energy efficient but also less of an impact to the environment and to the ozone layer.
EER or SEER: in central air conditioners, the energy efficiency ratio or EER is called the seasonal energy efficiency ratio or SEER. This is much like the EER but on a larger scale, and you’ll most likely encounter central air conditioners with at least 12 SEER than window type units.
Warranty period: do consider the warranty period of the central air conditioner to be just right, since it is a very pricey product after all. Most larger central air conditioners can range from 3 to 7 years of warranty and is usually split between the compressor warranty and parts warranty.

Our Pick

Our best central air conditioner is the Goodman GSX160361 3-Ton 16-SEER Air Conditioner in which the liquid line has been factory installed so you don’t have to do much when installing it. This central air conditioner keeps you cool due to its power and it is at 16 SEER so it is energy efficient.
It has good ground lug connection as a central air conditioner and it effectively cools any place whether residential or commercial. It is also very energy efficient like most central air conditioners out there and it also barely draws any power due to its high energy rating.
What’s, more the central air conditioner is quite durable due to the fact that the fin coils made of high quality aluminum material. It also uses R410A for its cooling agent so it is friendly towards the ozone layer, making it eco friendly.
If you want to get ready for the summer then the central air conditioner can be a great 3-ton unit to consider for small to medium sized homes. Like all outdoor units, it only needs a separate evaporator coil, like all central air conditioners out there (at least a 4.5 ton evaporator coil).
Because of its unique design, it is a smooth running and quiet unit and can range from 1,300 to 2,000 square feet for its coverage, making it ideal for most homes and small business areas. What’s, more, the central air conditioner does not use old Freon mineral oil so it is eco-friendly. it is backed by a 10-year warranty with a licensed HVAC installer.

Flaws but Not Dealbrakers

The only concern about the Goodman GSX160361 3-Ton 16-SEER Air Conditioner that is not a deal breaker is that, it might need an expert to help you install, as it is not totally a DIY package, unlike other expensive units out there. However, if you are into DIY and have some knowledge, you can get this unit installed by yourself anyway.

Step-up Pick

The MRCOOL DIY 18K-BTU Mini-Split Air Conditioner is our step-up pick and its R410A refrigerant is in the pre-charged line sets so this central air conditioner is very easy to install. What’s more, it is very quiet so it does not disrupt your indoor or outdoor activities at all.
As for the noise level, you can hardly hear it because of the design of the motor. Because this is a DIY friendly, there will be no need for special tools to install this central air conditioner. Your room can stay comfortable as much as possible with its easy to tweak settings for your best indoor air comfort.
At 18K BTUs, this central air conditioner is powerful enough that it cools within thirty minutes. The included line set is 26 feet long so it is easy to connect this DIY unit in your home. At 16 SEER, it is quite energy efficient as an inverter compressor unit.
What’s more, the thermostat of this central air conditioner is easy to control. This ductless unit can take up to 750 square feet of space with its cooling power. In addition to that, the lines are made of flexible materials but are durable.
This split air conditioner system is also highly applicable for a workshop or a game room. With this unit, you can control your air conditioner anywhere with the remote app through Wi-Fi as well, to make it unique. Made for amateur installation, this central air conditioner is backed by a 7 year warranty for the compressor and 5 year warranty for the parts.

Budget Pick

The Pioneer WYS012-17 Air Conditioner Inverter+ Ductless is our budget pick, which is a wall mount unit that comes with washable air filters to make it easy to service and maintain all year round. Perfect for small to medium sized living spaces, this is a nice mini air conditioner with a reliable remote controller.
With 17.2 SEER efficiency (cooling) and 9.0 HSPF efficiency (heating), the central air conditioner is also a full set for the budget wise people and mostly for residential purposes. If you want a combination of both indoor and outdoor units, this is an all in one unit that is powered up to 12,000 BTUs.
The temperature of this central air conditioner can range from 62 to 90 degrees F for indoor. It is a 115V unit that works on 110 to 120 VAC, 60 Hz. It can produce the minimum amount of electricity possible but without the sacrifice of its cooling ability as a powerful outdoor unit.
It is made with the latest high efficiency inverter++ technology and comes ready to install as a central air conditioner. In addition to that, it also has a voltage option of 208 to 230 VAC for Europe and Asian countries. As a ductless system, it can also be made for light commercial applications. Moreover, this central air conditioner is approved by UL standards, ETL and listed by AHRI.

Best Central Air Conditioner that is made for Commercial Purposes

The TRANE Commercial Central Air Conditioner 3.5-Ton is a straight cool type condenser that can be used for commercial purposes, such as for shops, offices, businesses and the like. You can also use it for mini grocery stores and it will help circulate air better than a regular window type air con.
Perfect for commercial use, this air conditioner is a condenser unit that is ready to be paired with a coil unit so you can easily DIY install it or have a professional install it for you. The air conditioner is rated for use in 208 to 230 volt systems (3-phase) so it is great for European and Asia Pacific residents.
If you are ready to cool down your summer with an AC unit but you need a large unit to power up your entire home or commercial space, you can depend upon this central air conditioner to do the job for you. It is so powerful that it is capable of blowing up cold air in any closed area.
The central air conditioner unit has already been charged with dry gas for testing purposes so it is surely safe for the environment and also safe for your household or commercial area. It has 12 SEER so it is fairly good when it comes down to its energy efficiency. This 3.5 ton unit is sufficient for most homes and small to medium commercial areas.

Best Central Air Conditioner that comes with the Coil Unit


The Goodman R410A 16 SEER Complete Split-System is our best pick for those who want a coil unit included. This split system package containing air conditioner, 2-stage compressor, modular blower, heat kit, coil and valve, so it is ready to be used as a 3 ton unit central air conditioner.
Its blower is at 1,600 CFM so it is pretty powerful and it also uses a 7/8 suction line valve connection. With 16 SEER, the central air conditioner is very energy efficient for larger areas. Moreover, it is compatible with ComfortNet systems, if you are using one of those.
With a 3/8 liquid line valve connection equipped in the unit, the included coil has upward and downward properties. The central air conditioner also has a variable speed blower so it is a lot more energy efficient. What’s more, the included heat kit is up to 34,000 BTUs so it is very powerful.
It can survive static pressure conditions so it is not just a heavy duty unit but can also survive for the many years to come. This central air conditioner is backed by a 10-year warranty.

Best Central Air Conditioner for Small Applications


The Goodman 2.5-Ton 14 SEER Air Conditioner is a great central air conditioner that is made for small applications, such as apartments, condo units, dorm rooms, small homes and the like. Its galvanized steel cabinet is of heavy-gauge so it is not just powerful but also very durable.
What’s more, the maintenance access on the top and side makes this central air conditioner very easy to service, easy to clean and easy to replace the filter. In addition to that, it is made with a scroll type compressor while its R-410A refrigerant is chlorine-free and has no impact to the ozone layer.
As an outdoor condenser unit, it can survive the elements due to the steel louver coil guard that will protect the entire central air conditioner from harsh rain and other weather disturbances. At 30,000 BTUs, this is a powerful unit that you can easily install onto your home.
This compressor is energy-efficient as well at 14 SEER, which is sufficient for most homes and small businesses. At 72 dB, the central air conditioner is just right for its noise level. Equipped with high quality and easy to locate service valves, the included filter drier has been factory-installed as well.
Able to provide cooling as much as possible for your needs, this central air conditioner has 25 amps of over current protection to keep your unit safe while you reduce your electric bill as well. In addition to that, the copper tube that is in the unit make this central air conditioner durable against weathering.
With many easy access gauge ports, installing and maintaining this central air conditioner is a breeze. This 2.5 ton unit is sufficient for most homes and small business and it also meets the 2010 Florida Building Code for its stability. If you want reliable cooling at a good price then this is a good one to have.
The central air conditioner has sturdy aluminum fin coils and it only requires an air handler, blower or gas furnace for the indoor unit. Moreover, this unit has been AHRI certified and ETL listed.

Best Central Air Conditioner that uses Inverter Technology


The Gree Vireo MULTI24CVIR202 24,000-BTU Air Conditioner is an inverter type central air conditioner that is great for both home or office use. It runs at only 59 dB of noise levels with its compact design and it also has an intelligent defrost feature.
As an inverter driven compressor, the advanced unit has a x-fan mode to avoid mold and mildew to keep the indoor air health. It also blends well with any décor and is made with a heavy gauge steel cabinet for durability. Its R410A refrigerant is eco-friendly as well.
This central air conditioner also comes with an infrared remote controller and has 21 SEER so it is super energy efficient. Made to heat and cool your home depending on the season, it also comes with line set adaptors and can work on 2 zones and there is no need for distribution boxes.
It has good recovery from power failure as a wall mount unit and its turbo mode as a central air conditioner will be useful for those moments that you need sudden cooling. It also saves energy due to its good SEER rating and its 24,000 BTUs of operation that makes it great for larger areas.
While being a central air conditioner, it also reduces outdoor noise due to its cleverly designed motor. Moreover, the vertical swing louver is built to withstand the test of time and weather. This unit helps to keep a steady room temperature wherever you place or install it. the central air conditioner is also applicable with a Wi-Fi kit accessory kit and is backed by a 5-year warranty.

Best Central Air Conditioner for Residential Use

The GREE Scratch-&-Dent ACC-8801 Central Air Conditioner is a great residential central air conditioner at 9,000 BTUs. It also comes with an indoor cabinet so it is easy to use right off the bat. As a cost effective central air conditioner, it is also energy efficient at 23 SEER.
It is also made with an eco-friendly R410A refrigerant so it doesn’t deplete the ozone layer. What’s more, this central air conditioner also a photocatalytic filter that works great. It is made for residential but also for commercial purposes and it can also give you a quieter operation unlike others out there.
With intelligent pre-heating and defrost modes, the central air conditioner also gives you a simpler installation due to the design and it has a comfortable sleep mode with a low noise to keep you asleep at night. Operating on 208 to 230 volts single phase, the unit also contemporary design that matches with most home décor.
You can get up to 59% of a regular household’s energy consumption with this central air conditioner that also has multiple fan speeds so it is energy efficient. You can also easily install this unit as there is no ductwork needed. The intuitive LED screen display helps you find the settings that work best for your temperature management needs. With its safe, anti-mildew design, the central air conditioner has a warranty for parts (5-year) and the compressor (7-year).

Best Central Air Conditioner for a Split System

The Goodman Gsx160481 Air Conditioner 45500 BTU is a good split system central air conditioner that has 16 SEER so it is energy efficient while giving you superior comfort. It also has a sturdy copper tube as a 4-ton unit that can withstand the elements of the outside world.
Being an environmentally friendly central air conditioner, you can help protect the environment and the ozone layer because the R-410A is chlorine-free. It also has a quiet operation so you can sleep better at night. It runs up to 45,500 BTUs so it is great for large areas as a part of a complete system.
With an enhanced aluminum fin coil to make it sturdy and reliable. It is an essential if you are building a split system central air conditioner. It also comes with easy access to gauge ports so it is simple to service and maintain.
The quality of the parts in this central air conditioner are also AHRI and ETL certified so you can be assured that it is a safe and reliable AC unit. It has a total of 15 feet of tubing length.

Best Central Air Conditioner for a Packaged System


If you want a packaged central air conditioner then you can try the Allied ZHA036S4B V9669 Package Central AC. It can be an air conditioner or a heat pump and it is rated at 13 SEER so it is fairly energy efficient. Made for commercial use and some homes, it runs on 208 to 230 volts 3-phase systems.
It is quite a powerful central air conditioner that runs up to 34,200 BTUs so it is great for commercial purposes. As a quality engineered unit, it is a nice packaged style central air conditioner (all in one closet) that is an alternative to split style AC units.
Great for rooftops and similar places, the central air conditioner is also readily available so you can use it right off the bat. This is also a 3-ton unit so it is fairly used for most homes and some commercial areas.

The Competition

Other central air conditioners were too wasteful of resources and are not very good when it comes down to its overall installation and cooling process. If you want a central air conditioner that is truly effective then it should be powerful with its motor but not compromise on the cooling and energy efficiency properties.

Other Frequently Asked Questions

Q: What is a central air conditioner?
A: A central air conditioner is a type of air conditioner that powers up the whole house and not just one area. Window type air conditioners, which are the most common ones, are usually only made to cool down just one room or area.
On the other hand, the central air conditioner is made to cool the whole house, office or establishment, and many require an HVAC specialist to install. The expert will give you additional advice as to how to maintain the centralized A/C unit and also how to troubleshoot in the long run.
Q: How exactly does a central air conditioner work?
A: Most central air conditioners work much like regular A/C units, but on a bigger scale. If you go for a central air conditioner system in your household, office or business establishment, you need to know first how it works.
This central air conditioner unit will require an outside unit, known as the condenser, followed by an air handler with a coil on top, and then followed by the distribution of the cooled air around your house using air ducts.
The central air conditioner works much like the regular air conditioners out there, but the main difference is that it works to cool down the entire house, so you need a bigger unit that sits outdoors instead of just being hung from your window vent. The central air conditioner’s job is to keep your indoor areas cool with its outdoor unit and the indoor unit that work seamlessly together.
Q: What are the parts of a central air conditioner?
A: The important parts of a central air conditioner include the following parts.
The first is the outdoor unit, which includes the compressor, set near the home outdoors. This compressor is connected to the refrigerator line that connects to your furnace. The outdoor unit must be kept clean from debris such as falling tree branches and insects to keep it running well.
The furnace, in turn, has an indoor coil on top of it. The coil then connects to the air duct and then goes around your house. Central air conditioners are different from ductless because they use air ducts to circulate the air around.
A thermostat finally controls the temperature of the house. Thermostats today are now programmed electronically so that you can set the house’s temperature depending on the time of the day so you can save up energy in the long run.
The central air conditioner is usually a large setup and can be a hassle to do just by yourself if you don’t have an expert to do it, since the outdoor unit of the central air conditioner can be a bit of a challenge to connect with the indoor unit.
Q: What are the two types of central air conditioners?
A: There are two types of central air conditioners that are currently available in the market today. The first one is the split system central air conditioner that is the most common one. It uses one unit outdoors and another unit indoors. The compressor is outside and the evaporator or coil unit is indoors. On a packaged central air conditioner however, everything is located in just one place, usually a cabinet.
Both of these central air conditioners can power up your house when it comes down to cooling properties, but the way they are set up can be different. If you live in an area that has minimal outdoor space or no yard at all, you can go for a packaged central air conditioner but if you have garden space then it is okay to install a split system central air conditioner.
Q: Which is more energy efficient: a central air conditioner or a window type air conditioner?
A: Many people debated over which type of air conditioner is much more energy efficient, but that depends on how much you are using your air conditioner, along with various other factors. The central air conditioner is great only for bigger spaces where cooling is needed but if you live in a small home, the window type air conditioner is your best bet.
Here’s a comparison of the EER/SEER of the two types:

Air conditioner typeEER/SEER
Window type10 and above
Central AC12 and above

 

Q: What makes the compressor the most important part of the central air conditioner?
A: The compressor is the most important part of the central air conditioner because it is the heart of your entire system. This unit is located outside for split systems and inside in a cabinet along with the evaporator in packaged systems. It is what heats up so it can be very hot inside, working to convert the hot air outside and turn it into cold air with the use of the refrigerating lines.
The purpose of a compressor unit on any central air conditioner is important because without it, there is nothing cold to blow around the house. The central air conditioner has a compressor that converts hot air from the outside and passes it through the lines and the inside coil unit or the evaporator spreads it into cool air for the whole house to stay cool.
Q: Aside from its high EER, is a central air conditioner noisy or quiet?
A: The many benefits of the central air conditioner include the fact that it is quieter than your regular window type unit. This is because that instead of being in just one room, the unit is far away from your sight and you only feel it through the air ducts around your house. This means that it will help you to sleep better in the middle of the night.
One of the pluses of having a central air conditioner over a window type is the fact that you get less background noise, especially if you’re a light sleeper who won’t fall asleep with noisy motors. The fact that the motor of the central air conditioner is a lot more advanced and mostly situated outside makes nearly all of the noise go away.
Q: Can you use the central air conditioner all year round?
A: Yes, the central air conditioner is actually applicable for use all year round, thanks to its even cooling technology and adjustable thermostat. If you live in a home that gets a lot of temperature changes the whole year then you can easily maintain that if you have a central air conditioner and adjust the programmable thermostat as needed.
Q: Why should I consider the BTUs of a central air conditioner when buying one?
A: Knowing the central air conditioner’s BTUs or British Thermal Units is the key to owning a sufficient central air conditioner for your home.
This is because the BTU is the unit of measurement as to how much hot air can the unit remove from the outside and turn it into cold air, per hour. The purpose of counting BTUs is to know if the unit is okay for the area of your house – larger homes need higher BTU units, that can go for up to 30,000 BTUs.
Q: What is the benefit of regularly cleaning or replacing my central air conditioner filter?
A: A central air conditioner filter can be replaced when it is dirty or cleaned if it is washable. Cleaning up your air filter, regardless of what AC unit you have, is a crucial step if you want to maintain healthier indoor air at home or in the office. The air filter is what keeps all of those dust, pollen, debris and allergens away from your nose to prevent allergies and the like.
Q: Why should my central air conditioner thermostat be digital?
A: The main benefit of using a digital thermostat for your central air conditioner is that you can set the temperature of the house in different times of the day so you don’t have to consume a lot of energy to cool down when you’re not at home or asleep. This programming system can help you save a lot on your electric bill later on and will also not make your AC unit suffer a lot.
Q: How do maintain a healthy condenser unit outside?
A: The condenser or compressor unit that goes outside is susceptible to dangers around nature and other environmental or man-made factors. You must clean it off debris such as leaves from trees and the like to make sure it is running well and will not overheat or break itself. The condenser or outdoor unit is the heart of your system so make sure you remove all of the vines away.
Q: How often should I replace an air filter for an air conditioner?
A: Any air conditioner, especially a central air conditioner, needs to be replaced of its air filter every 1 to 3 months depending on how much you use it, what’s the intensity of the current season of the year (if the summer is really terrible) and if the filter is washable. Most air filters of air conditioners today are washable but some can only be replaced so do consider reading the user’s manual for more information.
Q: When is the best time to replace my air conditioner?
A: That depends on your unit as some units can easily wear out than others. It also depends on how much you use the unit. You should consult the EER (or SEER) of your unit to know if it is consuming a lot of energy and you may want to go and purchase a better one (e.g. the newer inverter-type air conditioners today) that may consume less energy than your old one.
Q: Can the thermostat placement impact how cold an area will be?
A: Yes, thermostat placement may actually impact an area’s coldness, so make sure you strategically place your thermostat in a place where the temperature is neutral and not somewhere near your kitchen stove or window. This is mostly the case if you have a central air conditioner that uses a smart thermostat that automatically senses the temperature around.
Q: Can properly closed windows and doors help your air conditioner work better?
A: Yes, a closed space is what your central air conditioner needs, as with all air conditioners, because a closed space lessens the load on your central air conditioner and thus makes it more effective when distributing the cold air. This is highly important if you live in a house with a lot of windows, so make sure you seal up all the windows when turning the A/C on.
Q: Can you cook or run the dishwasher while running the A/C on?
A: Cooking and other heat intensive household chores can actually increase the workload on your A/C unit so it is best to leave the cooking for later if you want to cool down your house first. Chores like these are best when no one is around so you don’t have to expend a lot of cooling power from your air conditioning unit.
Q: Can I also add a ceiling fan to reduce my central air conditioner operating costs?
A: Yes, ceiling fans are great alternatives to any A/C unit because they consume less power but also help you cool down during the summer. In fact, most tropical climates that don’t have a lot of budget depend on the good old ceiling fan if they can’t afford an A/C unit. If you’re looking to save more money without sacrificing the cool air then go for a ceiling fan as well.
Q: What is the difference between Puron and Freon units?
A: Freon units are the older versions of our cooling appliances. Freon is used in your grandma’s old fridge, air conditioner and car, while Puron is a newer standard that is more eco-friendly and less of an environmentally impacting components of cooling systems. It’s best to go with a central air conditioner that uses Puron.
Q: Why is an annual checkup for my central air conditioner important?
A: The regular checkup of any AC unit, especially a central air conditioner, is important because it will help you maintain your AC unit into tip top shape so it effectively cools without costing too much on your electric bill. You can get an annual checkup from an HVAC specialist.

Wrapping It Up

Our Goodman GSX160361 3-Ton 16-SEER Air Conditioner is our best central air conditioner due to its high SEER or energy efficiency, eco-friendly R410A cooling agent and wide coverage of 1,300 to 2,000 square feet.