Top 5: What is the quietest central air conditioner? Noise Analysis and Comparison | soundproof zen (2023)

Opting for the quietest central air conditioner you can find will dramatically improve overall noise levels. Of course, you have to make sure you weigh noise against efficiency and cooling performance.

That's where this guide comes in. Below I'll review my top picks for the quietest central air conditioners. However, let's take a look at what we mean by rest first so we know what to look for.

How quiet is the central air conditioning?

A quiet central air conditioner may have a noise level of 50 dB. A normal air conditioner might be in the 70s or 80s, which is four times as loud in terms of perceived noise level.

In "real world" noise terms, 50 dB is roughly equivalent to moderate rain. City traffic is about 70 dB (if you walk on the street next to it), just like a vacuum cleaner, and 80 dB is about the same as your garbage collection.

Remember that decibel values ​​go down to alogarithmic representation. This means that a 10 dB increase results in a doubling of the perceived loudness of a sound. So a 20dB noise margin may not sound like much, but it's a 400% difference.

55dB is certainly not too loud for an air conditioner. You will find that the smaller or portable models are quieter, mainly because they are not as powerful. But a quiet air conditioner can be around 55 db, which is pretty quiet.

It is important to note that most manufacturers (should) include a decibel rating in their product specifications. Although not everyone always pays attention to noise levels, they are generally taken into account when purchasing air conditioners. They are a product that most people consider noisy and therefore having noise levels has become common.

What causes noise in an air conditioner?

There are many sources of noise in a central air conditioning system. Below are the main culprits, followed by a short section on features that will help you combat these noises.


An air conditioner has fans in the outdoor and indoor units. Even new fans are noisy, but older fans can whine and rattle if not properly maintained.

There isn't much you can do to completely soundproof the fans of an air conditioner. However, to solve this problem, more and more noise-reducing fan blades are being used.


An AC compressor does most of the work. Here the refrigerant is compressed from a gas to a liquid, hence the name. You will find the compressor in the outdoor unit.

It has many moving parts that make noise. But noises like knocking and screeching indicate problems with the compressor, such as with the pistons. If you hear this, you need to have your compressor checked.

channel system

The ducts of an air conditioner don't make any noise by themselves, but they carry noise surprisingly well. Eventually, you'll have lots of surfaces for sound waves to reflect off of, essentially making it an echo chamber.

Therefore any noise from the outdoor unit may seem much louder when it reaches your room. You can of course avoid this by having a quiet air conditioner, but also by using itflexible lines and insulation.


Finally, there is the thermostat. It makes a clicking sound when turning on and off. Again, there's not much you can do here, but compared to the sounds the compressor makes, there really isn't much to worry about.

Top 5: What is the quietest central air conditioner? Noise Analysis and Comparison | soundproof zen (1)

How to reduce AC noise

There are many things you can do to reduce the decibel rating of your air conditioner. Some refer to the features of the device, while others refer to proper maintenance and location.

Noise reduction features are the first thing to consider. Your outdoor unit should have built-in insulation that will help dampen and muffle the noise generated by the compressor. It won't completely soundproof you, but it will help reduce the volume you're listening to.

Another feature to consider is energy efficiency. I'll talk about that later, but the bottom line is that an energy efficient device either runs below maximum capacity or has better control over its parts. Both result in quiet operation simply because the device isn't working as hard.

Once you've installed your quiet air conditioner, make sure you take proper care of it. Have it checked and cleaned at least once a year. This ensures that worn parts (that could be making noise) are replaced or repaired before they become a problem.

Top 5 Picks for the Quietest Central Air Conditioning

Of course, when making my top picks for the quietest central air conditioners, I will focus on noise levels. But I balance this against capacity and energy efficiency, as these factors influence the overall noise level of an AC unit.

1. Best Choice: Ruud EcoNet UA20

  • variable speed compressor
  • coolingTapa.: 24 a 60 kBTU
  • Energy Rating: 20.5 (MONDAY)
  • heating effect:No heater.
  • Noise level:
    54dB minimum
    72dB max
  • Guarantee: 10 years on compressor
Top 5: What is the quietest central air conditioner? Noise Analysis and Comparison | soundproof zen (2)

La EcoRed de RuudAir conditioning is my first choice because it balances noise levels and energy efficiency. There are different sizes in the range, so the values ​​given here vary greatly.

They range from 17.3 to 60.5 kBTU of cooling capacity, giving you a lot of flexibility depending on the size of your home.

The decibel rating is between 54dB and 76dB. The quietest air conditioner in their line is the 4-ton model (A2048) with intermediate noise levels54 y 72dB. The range includes models between 2 and 5 tons.

These are variable speed air conditioners that run between 25% and 100% capacity, but typically around 60%. There are numerous features to reduce noise, such as swept-wing fan blades and ferrite rings on the power module. Ferrite rings concentrate the power's magnetic field and reduce high-frequency noise. Curved fans also reduce noise by reducing air turbulence.

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The UA20's SEER rating is 20.5 for all models. This is well above the Energy Star certification rating of 16, making it an efficient and quiet air conditioner. While excellent, it falls far short of the best in this class, which has a SEER of 26.

The main disadvantage is the lack of heating (it is not a heat pump). You will need to pair it with a gas stove to compensate. If you're looking for an all-rounder, check them out.Ruud UP20instead of this. It is a heat pump with the same refrigerating capacity and a little noisier (between58dB y 73dB).


  • Solid SEER rating of 20.5.
  • Good tonnage for domestic use.
  • Right balance between noise and efficiency.


  • SEER is good, but it is far from the best.
  • No heater.

2. Heil Ion 19 WAS9

  • variable speed compressor
  • coolingTapa.: 24 a 60 kBTU
  • Energy Rating: 19 (DRY)
  • heating effect:No heater.
  • Noise level:
    56dB minimum
    75dB max
  • Guarantee: 10 years on compressor
Top 5: What is the quietest central air conditioner? Noise Analysis and Comparison | soundproof zen (3)

Salvation HVA9The air conditioner is smart, which means you can control it from your smartphone or the wall panel that comes with it. While it's not a necessary feature, it can be useful if you want your home to be fresh when you return from work.

As for the noise level, it is 56 dB in low mode. It tops out at 75dB, making it a bit quieter than the previous Ruud. Like the Ruud, it is a variable speed AC, so it rarely reaches its upper sound levels.

It has weather and dirt protection, which is always a plus. You can place it pretty much anywhere outdoors without worrying about damaging it. However, a protective cover never hurts!

The Salvation has a SEER rating of up to 19, putting it just below the Ruud. It's still Energy Star certified though, so you know you're getting an efficient model. It's available in 2 to 5 ton (24,000 to 60,000 BTU) models, so you'll need to find a model that's right for your home.

In terms of cons, it's another small one. The Heil HVA9 does not have a heating function, so you have to rely on a gas stove in winter temperatures. If heating is a necessity, whichHello HVH8it is the equivalent heat pump of the Heil range. It has a similar cooling capacity and noise emission (56 dB min).


  • Noise level of 56 dB in low mode.
  • Variable speed compressor.
  • Competitive price.


  • SEER is the lowest on this list.
  • Without heat pump.

3. Lennox SL28XCV

  • variable speed compressor
  • coolingTapa.: 23.2 kBTU
  • Energy Rating:26 bis 28(DRY)
  • heating effect:No heater.
  • Noise level: 59 dB min.
  • Guarantee: 10 years on compressor
Top 5: What is the quietest central air conditioner? Noise Analysis and Comparison | soundproof zen (4)

East Lennox SL28XCVIt is another variable speed air conditioner. Its lowest decibel rating is 59dB, making it a bit louder than the others. But your SEER rating can go as high as 28, which is incredibly efficient. It means you can potentially save more than 50% compared to the minimum federal requirement for energy efficiency.

Like the Salvation, it has smart connectivity, but you'll need the Lennox Smart Thermostat to take advantage of it. So if you want smart features but don't want a dedicated infrastructure to do it, Salvation is a better choice.

There is a 10-year warranty on all parts, including the compressor. It's pretty standard in the industry. You can always expand it if you want more coverage.

The outdoor unit has several durability features. One of them is the aluminum spiral, exclusive to Lennox air conditioners. In short, this means that the cooling coil will not rust in the open air, helping to extend its life.

Like the Heil and Ruud, the Lennox SL28XCV does not have a heat function. The company manufactures a comparatively efficient heat pump (theSL25XPVwith a SEER rating of 24).


  • Market leading SEER rating of up to 28.
  • Smart features.
  • Rust resistant cooling coil.


  • Without built-in heater.

4.Best Choice for Two-Stage AC: Coleman AC19 Echelon

  • two stage compressor
  • coolingTapa.: 24 a 60 kBTU
  • Energy Rating: 19.75 (Monday)
  • heating effect:No heater.
  • Noise level: 67 dB min.
  • Guarantee: Compressor life
Top 5: What is the quietest central air conditioner? Noise Analysis and Comparison | soundproof zen (5)

With a minimum decibel rating of 67 dB,der Coleman AC19It's a bit noisier than previous variable speed models. But as I explain below, this is a symptom of two-tier drives.

However, you have to make up for this with the lower ticket price. And with a SEER rating of 19.75, it really isn't too far behind the Ruud. The model has a tonnage range of 2 to 5 tons (24,000 to 60,000 BTUs) and therefore should be suitable for homes of all sizes.

Also, the Coleman AC19 is not a heat pump. It means that it is only good for cooling and cannot reverse its cycle for heating.

In terms of durability, the compressor unit is salt spray resistant and powder coated, meaning it's ready for all outdoor conditions. Better yet, it comes with a limited lifetime warranty on the compressor, which is much better than the aforementioned air conditioners.

The compressor unit has several features to reduce the noise level. Like the Ruud, it features a swept-wing fan to reduce airborne noise. It also has a composite base that dampens vibrations before they can become sound waves.

Although the AC19 is a two-speed drive, it gets the same efficiencies as a variable speed drive. Two-stage air conditioners are also generally cheaper, so the AC19 strikes a good balance between price and efficiency.

Again, the AC19 is just an air conditioner. The equivalent heat pump isHC19. It emits 66dB min, which means that its noise level is very close to AC19. Additionally, the HC19 is compatible with an additional gas stove in case you need flexibility between gas and electric.


  • SEER rating of 19.75.
  • Lifetime compressor warranty.
  • noise reduction features.
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  • The decibel rating of 67dB is higher than that of variable speed compressors.

5.Best Choice for Single Stage Air Conditioners: Lennox ML14XC1

  • single stage compressor
  • coolingTapa.: 18 a 60 kBTU
  • Energy Rating: 17 (DRY)
  • heating effect:No heater.
  • Noise level: 74 dB min.
  • Guarantee: 10 years on compressor (with product registration)
Top 5: What is the quietest central air conditioner? Noise Analysis and Comparison | soundproof zen (6)

Lennox makes a pretty decent air conditioner, so it's not a surprise.ML14XC1it's my first choice for single level units. Its decibel index is 74 dB. While this is loud, it is in line with the top levels of previous variable speed models. As I explain below, this is because of how a single stage AC works.

Despite being an entry-level product, the ML14XCI still has a SEER rating of 17. This may be the lowest on this list, but it's actually not too far behind the Coleman and Heil models. Energy Star certification is 16 or higher and meets these criteria.

The ML14 range includes air conditioners from 1.5 to 5 tons, which corresponds to 18,000 to 60,000 BTUs. Unsurprisingly, as a basic device, it has no heater.

As you'd expect, it's not overloaded with features. The device features a Permaguard coating (meaning a UV-resistant and hydrophobic coating) for increased durability and comes with a 5-year limited warranty. Again, it's the lowest on this list, but what can you expect from a basic product?

That's the only real downside to the ML14XCI. It lacks functionality compared to variable speed models. It turns on and off, so it doesn't offer amazing temperature control. However, if you need a (relatively) cheap air conditioner, it's a good option.


  • Single stage AC with a SEER rating of 17.
  • Energy Star Certification.
  • Comparatively cheap option.


  • Noise level of 74 dB.
  • missing functionality.

Other characteristics to take into account in a silent air conditioner

So what else should we look for, besides noise level, when choosing the quietest air conditioners? These are the factors that I think are most important when choosing air conditioning units.


All air conditioners work with the same basic technology: the outdoor unit has a compressor, a condenser, and a fan. The indoor unit includes the evaporator, a fan and ducts for air distribution throughout the building.

The principle is the same as for mini-split air conditioners and refrigerators. A refrigerant is used to extract heat from the interior and transfer it to the exterior. You can do this by following what is called avapor compression cycle.

However, there are several options for how compressor technology works that affect noise levels (and efficiency).

a stage

A single stage compressor is on or off. When it is on, it runs at 100% speed. This affects the noise level, since it is only on the highest setting. It is also the least efficient type, only using 100% of its energy.

The main advantage of single-tier systems is the price. They are the cheapest, so unless you are bothered by constant temperature fluctuations and on and off, the easiest way to start. However, you must weigh this against the increase in your energy bill.

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Top 5: What is the quietest central air conditioner? Noise Analysis and Comparison | soundproof zen (7)

two stage

Two-stage compressors have extra speed, typically 60-70% of capacity. It varies by model, though it shouldn't be hard to figure out. The air conditioner will generally work less when it is close to the desired temperature and only go up to 100% when it has work to do.

It is a more energy efficient option as it has some variation in performance levels. Unsurprisingly, this also has an effect on the noise level, as the fans have to accommodate this variation. You must follow the degree of compression of the refrigerant to remove more or less heat.

Top 5: What is the quietest central air conditioner? Noise Analysis and Comparison | soundproof zen (8)

different speed

You can probably guess what a variable speed compressor is. Depending on the brand, you can have up to 700 separate speed settings based on ambient temperature and airflow. You can also see it as a multi-level proven technology, but it's the same thing.

However, start-up costs are much higher. They are the most expensive and complex air conditioners, but also the most efficient. Most run at around 40% of their maximum capacity and maintain a more constant temperature than other models.


There are several ways to measure the performance of an air conditioner, but we'll focus on BTUs first before delving into tons. BTU stands for British Thermal Unit, which is a measure of heating (or cooling) power.

A BTU is the amount of heat needed to raise the temperature of 1 pound of water by 1 degree Fahrenheit. We also use it for cooling performance where the opposite is true.

The bottom line is that higher BTU ratings lend themselves to larger rooms. As an extension, they draw more power compared to AC units with a lower BTU rating.

Instead, you might see air conditioning, which is described as cooling by the ton. One ton is equal to 12,000 BTUs. So a 3-ton air conditioner has 36,000 BTUs of cooling capacity.

For central air conditioning, you need to know the square footage of your home to determine the required tonnage. Unlike a portable air conditioner that cools a single room, a central air conditioner cools the entire house.

You can usethis calculatorto determine the tonnage needed for your home's central air conditioning system.

I recommend choosing a model that is more powerful than you need. Variable speed air conditioners run below their maximum capacity, so theoretically choosing larger air conditioners means running them at a lower setting. This in turn means a quieter unit.


Energy efficiency is key to keeping bills low. We measure AC efficiency with the SEER rating. It stands for Seasonal Energy Efficiency Ratio, which is measured by dividing cooling capacity by power consumption in watt-hours.

Don't worry, you are not expected to calculate this yourself. Any air conditioner that claims to be efficient has a SEER rating. Anything higher than 13 is acceptable, but 16 or higher is a really efficient air conditioner. To earn Energy Star certification, an AC must have a SEER rating of15 or more.

In general, two-speed and variable-speed ACs have the highest SEER values. A single stage creates uneven cooling and is not good at reducing humidity, which keeps the SEER rating down.

But as you can see from the single stage AC above, this doesn't always mean poor efficiency. The right model can almost compete with expensive variable speed air conditioners.


The typical useful life of an air conditioning unit is 15 to 20 years. After this point, technological advances will overtake it, so it's usually not practical to fix it. Of course it could continue after that time.

So a good warranty for an air conditioner is at least 10 years. However, some manufacturers offer up to 20 years.

You will likely find that different parts have different warranties. For example, the fans are 20 years old while the compressor is only 10 years old. This is because it is more likely to break first. For this reason, in the list above, I have mainly included the warranty period of the compressors. In any case, pay attention to the annual inspection!

compressor installation

It's less about features when buying an air conditioner and more about installation tips. You usually need a professional to install your new device, so be sure to ask about noise-reducing mounts.

This can include housed spring bearings that dampen the sound waves emitted by the compressor. Alternatively, you can place the compressor in a sound trap or install it away from your windows.


We usually discuss the price of a product, either in comparison to the largest market or to other products on the list. This is not really possible with central air conditioners due to the way they are sold.

You will need to go to a registered dealer to get your new air conditioner and they will likely install it for you as well. As a result, prices can vary widely across the country.

The bottom line is that single stage air conditioners are usually the cheapest and variable speed air conditioners are the most expensive. The more features it has, the higher the price.

Alternatives to Central Air Conditioning

An HVAC unit isn't your only option for cooling your home. Here are some alternatives depending on your circumstances.


a mini divisionit requires less infrastructure and is ideal for one or two rooms. They can cool up to 5 rooms with the same compressor and are second only to central HVAC systems in efficiency.

The advantages are that they are smaller, cheaper and quieter. Mini-Splits are the perfect combination of technology and convenience if you only have a few rooms to cool.

window air conditioner

A window air conditionerIt's a compressor and blower in one. It sits on a window frame, sucks in air, and then blows it out into the room. They are much cheaper but obviously only fit one room.

A similar alternative is a portable air conditioner, which is very similar except you can move it between rooms. Window air conditioners and portable air conditioners are the least efficient, but also the cheapest. They are suitable options for students, renters, or people without a central HVAC infrastructure.

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Final Thoughts on the Quietest Air Conditioners

I hope you now have enough information to shop for an efficient (and quiet) central air conditioner.

My absolute first choice is the Ruud EcoNet UA20 series. It has the right balance between quiet and efficient, and cost. That being said, my top picks for single and two stage air conditioners are pretty good too.

Is there one brand you prefer above all others when it comes to choosing the quietest central air conditioner? Let me know below as I would love to share it with my readers.


Which HVAC system is the most quiet? ›

Ductless 'mini split' systems like Mitsubishi home air conditioning systems are the quietest air conditioners on the market today. With an average noise level of 32 decibels, ductless systems are not only whisper quiet, they offer some of the highest SEER ratings and most efficient performance on the market.

Which type of air conditioner is quietest? ›

Split systems and central air conditioners are considered the quietest. Since these types of air conditioners are designed for quieter operation, the noise-generating components are usually located outdoors. The sound level can reach 69-72 decibels during outdoor unit operation.

How many decibels is a quiet central air conditioner? ›

So, if you're looking for a quiet AC, make sure it's within 50 to 60 dB.

Which AC noise level is best? ›

Ideally, the best sound level for an air conditioner is 10 decibels. But you can scour all stores in the world and you'll never an air conditioner that is as quiet as this one. The best choice, which is most realistic, are air conditioners with a sound level that ranges somewhere between 20 dBA to 50 dBA.

What is the quietest HVAC 2022? ›

The Midea Inverter AC is the quietest air conditioner on our list and arguably the most stylish.

Is Trane quiet? ›

Quietest Air Conditioner - Trane XV18

The Trane XV18 air conditioner has a sound level starting as low as 57 dBA - 4 dB below the competition. It includes innovative sound insulators and a unique integrated fan system with a blade-down fan design that improves airflow and reduces sound levels.

Are higher SEER AC units quieter? ›

Other Things to Consider with SEER Rating

Air conditioning units with higher SEER ratings are often much quieter than those with lower SEER ratings. That's especially true for units with variable-speed compressors because they have quieter fans and don't always operate at full capacity.

Which compressor is quietest? ›

Air Compressor Types
  • Single-piston models tend to be noisier than dual-piston (also called duplex) reciprocating air compressors.
  • Rotary screw air compressors are much quieter than reciprocating compressors. ...
  • The most exceptionally-quiet and efficient of all air compressors is the scroll air compressor.

Is Lennox a quiet air conditioner? ›

Lennox® air conditioners are amongst the quietest and most energy efficient units on the market. Delivering perfectly precise comfort control, Lennox air conditioners continually make small adjustments in fan speed and cooling output to hold your temperature exactly where you want it.

How many decibels is Lennox AC? ›

Whereas most heating and cooling systems operate at around 50 to 60 decibels, Lennox's systems average 70 decibels, with its quietest models coming in at 59 decibels. If having the quietest available system is important to you, Lennox may not be the brand to consider.

Are some AC units quieter than others? ›

Variable fan motors are usually quieter than single speed fan motors. Other factors that affect the noise level of the air handler include the location, location of blower motor (top-mounted is quieter), insulation, and cabinet construction. CONDENSING UNIT: The condensing unit also has a fan motor in it.

Are new central air units quieter? ›

Newer air conditioner models are always quieter than older versions due to new technology being manufactured. If the noise is coming from the compressor, then you will need to replace it because it has worn out. Your air conditioner could have dirty fans from gathering a lot of dust.

What brand of HVAC is the most reliable? ›

As champions of providing summertime comfort, central air conditioners are all about performance and reliability.
  • Best Air Conditioner Brands 2023.
  • American Standard.
  • Amana.
  • Lennox.
  • Frigidaire.
  • Rheem.
  • Coleman.
  • Heil.
Feb 11, 2023

What is the safest noise level? ›

The U.S. Environmental Protection Agency (EPA) and the World Health Organization (WHO) recommend maintaining environmental noises below 70 dBA over 24-hours (75 dBA over 8-hours) to prevent noise-induced hearing loss.

What is the noise level of central air conditioners? ›

Most residential central ACs range from 50 dB (the sound of rainfall) to 80 dB (the sound of running a garbage disposal). Below are some of the quietest air conditioners on the market, from top-brand manufacturers: Lennox XC25 Variable-Speed Air Conditioner = as low as 59 dB.

What is the best time of year to buy a new HVAC system? ›

The best times to replace your HVAC system are the spring and early fall when the business is the slowest. During this time manufacturers offer specials to help sell more products and HVAC contractors are more aggressive with their pricing to help keep the dollars rolling and the crews busy.

How can I make my HVAC less noisy? ›

How to Soundproof Ductwork and Vents in Your Home
  1. Make Repairs to the vent or ductwork. ...
  2. Choose Sound Absorbing or Soundproofing Materials For Your Vents or Ductwork. ...
  3. Insulate the Ducts With Liners & Vents With Acoustic Foam. ...
  4. Cover Unused Vents to Dampen Sound.

How do I reduce the noise in my HVAC? ›

To achieve success in HVAC soundproofing, you can use either one of the following methods:
  1. Use Sound Blankets and Barrier Walls. ...
  2. Upgrade Your HVAC System. ...
  3. Avoid Noisy Ducts. ...
  4. Wrap HVAC Ducts. ...
  5. Rearrange the Room.
Nov 12, 2021

Which brand is better Carrier or Trane? ›

There is no difference in terms of basic and mid-level units of both the brands when it comes to deciding the superiority in terms of quality. However, if you are looking forward to buying a top-line model, then you must go with Trane as it has a better warranty on their compressors.

Is American Standard as good as Trane? ›

That's right, there is no difference between Trane and American Standard, they're exactly the same product! The only exception to that statement is the condensing unit top that comes on a few of the high-efficiency condenser models. Under the Trane name, these models are equipped with the DuraTuff aka All Weather top.

How quiet are Trane air conditioners? ›

Trane air conditioners feature: SEER ratings of up to 22. Sound levels as low as 57 decibels.

How much better is 16 SEER than 14 SEER? ›

A 16 SEER unit is about 13% more efficient than a 14 SEER. For every $100 you spend to cool your home with a 14 SEER, you could save $13 on your monthly bill by upgrading to the 16 SEER unit.

How much better is 20 SEER than 14 SEER? ›

A 20 SEER AC unit is 43 percent more energy efficient than a 14 SEER system, making it very eco-friendly. However, the cost difference for a 20 SEER unit vs a 14 SEER system is significant so make sure you do the math for your situation.

What HVAC system qualifies for tax credit 2023? ›

Starting January 1, 2023, you may be eligible for the new and improved 25C Energy Efficiency Home Improvement tax credit, and it's a $2,000 federal income tax credit for heat pump HVAC systems.

Is a two stage air compressor better than a single stage? ›

Uses of Single-Stage vs. Dual-Stage Air Compressors. Dual-stage air compressors produce higher air power, which makes them a better option for large-scale operations and continuous applications. However, two-stage compressors also cost more, which makes them better suited for factories and workshops than private use.

Is Lennox better than Trane? ›

Key Differences Between Lennox, Trane and Carrier

Energy Efficiency: In terms of efficiency, Lennox takes the lead with some units having a SEER rating up to 26. Maintenance and Repairs: Carrier has parts readily available and not overpriced when it comes to convenience in repairs and maintenance.

Which is better Lennox or Carrier? ›

Efficiency Comparison – Lennox (#1), Carrier (#2) and Trane (#3) That's the rankings. Lennox makes the most efficient central air conditioners in the two-stage and variable capacity levels. Carrier's most efficient model is higher than Trane's, but Trane has slightly more efficient single stage and two stage ACs.

Why is my Lennox air conditioner so loud? ›

If your Lennox air conditioner is making too much noise, it may be a good idea to have your system professionally inspected. An unusually noisy unit may indicate there are loose parts, damaged components, or other problems that can be diagnosed by an air conditioner repair service.

How many decibels is a Trane air conditioner? ›


Trane AC systems have a decibel range of 55-75, from about the level of ordinary conversation to the level of a vacuum cleaner.

Is 72 dB loud for an air conditioner? ›

Ritz says a typical low-end unit might have a noise level of about 78 to 82 decibels, but the best units are about 72 to 78 decibels. Dallas-based Lennox Industries recently introduced AC and heat pump units that come in at 68 decibels. The general sound level in the average home is about 40.

How many decibels is a Goodman air conditioner? ›

As with its air conditioners, Goodman's heat pumps run somewhat louder than similar models from other brands, with sound levels of 72 to 76 decibels. However, the higher decibels may be worth its strong warranty.

Why is my brand new air conditioner so loud? ›

Noises that are new, have changed, or are significantly louder may be an indication of a major problem with your air conditioner, such as a failing compressor, bad blower motor bearings, or mechanical damage.

Are Goodman AC units quiet? ›

Goodman offers low-cost HVAC systems with different energy ratings starting from SEER 13 to 19. Some newer models are more efficient and have a higher SEER 19. Most Goodman's air conditioning units make a little noise but only reach up to 70 decibels when the unit is under stress.

Why is my new Trane air conditioner so loud? ›

The condenser fan motor has bearings that can wear out over time. When the bearings are worn out, they make loud noise. To check the bearings, try rotating the condenser fan motor by hand. If the motor does not turn smoothly, replace it.

Are Rheem air conditioners quiet? ›

Rheem air conditioners are the best choice for comfort, efficiency and reliability. They provide steady, dependable and economical performance year after year when properly maintained. They are quiet, long-lasting and have few service needs.

How many decibels is a Rheem air conditioner? ›

Rheem has decibel levels that can go between 65 and 70. This makes it quieter than other brands. So those of you who like a quiet home this is perfect for you.

Which is No 1 AC in world? ›

1. Samsung. These qualities have helped them to produce the best Ac in the world.

What HVAC manufacturer has the best warranty? ›

Top 5 Home Warranty Companies for HVAC Systems
  • Liberty Home Guard: Best Customer Ratings.
  • American Home Shield: Best Coverage Caps.
  • First American Home Warranty: Best Appliance Coverage.
  • Select Home Warranty: Best Value.
  • America's 1st Choice Home Club: Best for Customization.

What does 50 decibels sound like? ›

50 dB is as loud as a quiet conversation, a quiet suburb, a quiet office, or a quiet refrigerator. Notice the use of the word 'quiet' when describing this noise level? That's because all sounds between 31-60 decibels are considered quiet.

What does 70 decibels sound like? ›

70 decibels is as loud as a washing machine or a dishwasher. It is a moderate noise level. 70 dB noise is not considered harmful to human hearing. However, extended exposure to levels above 55-60 dB can be considered disturbing or become annoying.

What is the safe noise level for 8 hours? ›

These limits are based on a worker's time weighted average over an 8 hour day. With noise, OSHA's permissible exposure limit (PEL) is 90 dBA for all workers for an 8 hour day.

Are 2 stage air conditioners quieter? ›

Compared to standard single-stage air conditioners, 2-stage systems are much quieter, use less electricity, and help reduce wide temperature swings around the home. Similar to variable output systems, the longer run-time associated with the low stage also assists with furnace filter performance.

Are all HVAC systems loud? ›

An HVAC system usually won't run loudly unless there's a problem. Your HVAC system, if there's a problem, may make several different noises. You may hear a buzzing noise, a popping sound, or even clanking. When your HVAC system is making unusual sounds, you should never ignore it.

Does higher SEER mean quieter? ›

Other Things to Consider with SEER Rating

Air conditioning units with higher SEER ratings are often much quieter than those with lower SEER ratings. That's especially true for units with variable-speed compressors because they have quieter fans and don't always operate at full capacity.

Are newer HVAC quieter? ›

Newer air conditioner models are always quieter than older versions due to new technology being manufactured. If the noise is coming from the compressor, then you will need to replace it because it has worn out. Your air conditioner could have dirty fans from gathering a lot of dust.

What is the most reliable brand of HVAC? ›

As champions of providing summertime comfort, central air conditioners are all about performance and reliability.
  • Best Air Conditioner Brands 2023.
  • American Standard.
  • Amana.
  • Lennox.
  • Frigidaire.
  • Rheem.
  • Coleman.
  • Heil.
Feb 11, 2023

Is a 16 SEER better than a 14 SEER? ›

A 16 SEER unit is about 13% more efficient than a 14 SEER. For every $100 you spend to cool your home with a 14 SEER, you could save $13 on your monthly bill by upgrading to the 16 SEER unit.

What SEER is the best value? ›

A good SEER rating is typically 14 or higher.

The average efficiency rating for a central air conditioner in operation today is 16 but high energy-efficient models can have ratings as high as 23.

Why is my new HVAC system so loud? ›

Most units use isolation padding to absorb the motion noise produced by the internal parts, especially the fan. These pads can wear over time and begin to crumble and break, increasing the noise level of your air conditioning unit.

What is the quietest Lennox furnace? ›

The SLP99V gas furnace from Lennox is the quietest and most efficient furnace you can buy,* engineered to run at variable speed to drastically minimize the sound of air kicking on or off inside the home.


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