If you’ve reached this page, you’ll know that air conditioners can be seriously noisy.

Whether you looking to fix an existing noisy air conditioner, or want to avoid buying a loud one in the first place, we’ve got some tips to help you out.

First, we need to understand the source of noise in an air conditioner. There are two main sources: the compressor and the fan.

The compressor is responsible for pumping refrigerant around the system. The fan helps to circulate air over the evaporator coils.

In general, compressors are the noisiest part of the air conditioner.

This is because they use a lot of energy to compress refrigerant, and this energy is released as noise.

Fans are also a source of noise, but they tend to be less noisy than compressors.

There are two main types of air conditioners:

  • Central air conditioners
  • Window air conditioners

Central air conditioners

Central air conditioners are the quietest type of air conditioner. This is because they have their compressor and fan located outside of the house.

How to reduce the noise of a central air conditioner

Purchase a compressor blanket – Why not ask your HVAC engineer is you can buy a compressor sound cover. These are simple foam or metal covers that go around the compressor to help muffle the noise.

Replace an Old Unit – If you have an old unit, it might be time for an upgrade. Newer units tend to be much quieter than older units.

Make sure the coils are clean – The coils in your air conditioner can get dirty over time. This dirt can build up and cause the air conditioner to work harder and make more noise.

Check for loose parts – If any of the parts in your air conditioner are loose, they can vibrate and cause noise.

Plant bushes or shrubs – A bush or shrub is an attractive way to block the noise from your condenser unit.

Fence in your air conditioner – A fence can also be an effective way to reduce the noise from your air conditioner.

Move the air conditioner to a different location – If you have the ability to move your air conditioner, try moving it to a different location. Sometimes, a simple change in location can make a big difference in the noise level.

Window air conditioners

Window air conditioners are the loudest type of air conditioner. This is because their compressor and fan are located inside the house.

How to reduce the noise of a window air conditioner

The ways to reduce the noise on your window air conditioner will be very similar to the ways you would reduce noise for a central air conditioner.

You can try:

Keep Your Filter Clean – By keeping your filter clean, you can reduce the noise of your window air conditioner by up to 50%.

Check for loose parts – If any of the parts in your air conditioner are loose, they can vibrate and cause noise.

Plant bushes or shrubs – A bush or shrub is an attractive way to block the noise from your window air conditioner.

Look After Your Coils – The coils in your air conditioner can get dirty over time. This dirt can build up and cause the air conditioner to work harder and make more noise.

Straighten The Fins – Oftentimes, the fins on your window air conditioner will become bent. This can cause the air conditioner to make more noise.

Wipe The Fan Blades – The fan blades on your window air conditioner can get dusty over time. This dust can cause the fan to work harder and make more noise.

Which Type Of Air Conditioner Is Quietest?

Quiet Ductless Air Conditioners

So what is a ductless air conditioner? Simply put, it is an air conditioner that does not require ductwork.

Ductless air conditioners are the quietest of all the different kinds of air conditioning units. Because the compressor is outside and ducts do not run throughout the house, noise levels while operating are significantly lower.

There are two main types of ductless air conditioners: mini-split systems and single-split systems.

Mini-Split Systems

A mini-split system is made up of two main parts: an outdoor compressor/condenser and an indoor air-handling unit. The outdoor unit is usually installed on a concrete pad or other level surface near the home.

Single-Split Systems

A single-split system is made up of three main parts: an outdoor compressor/condenser, an indoor air handler, and a remote control. The outdoor unit is usually installed on a concrete pad or other level surface near the home.

The remote control allows you to operate the system without having to be in the same room as the air handler.

Ductless air conditioners are available in a variety of sizes and capacities to meet the needs of any home.

You also have single zone and multi-zone options. Single zone systems are ideal for smaller homes or single rooms, while multi-zone systems are better suited for larger homes or multiple rooms.

Related: Variable Speed Air Handler Pros And Cons (MORE PROS!!)

What Is The Quietest Portable Air Conditioner?

Quiet portable air conditioners have a noise level of between 44 and 51 decibels. Only 9.26 percent of the portable AC units researched fall within this range. The BLACK+DECKER BPT05WTBA is the most energy-efficient quiet portable air conditioner, with an EER of 9.55 and a sound rating of

The main factor to consider when purchasing a portable air conditioner is the noise level. A noisy portable air conditioner can make it difficult to concentrate, work, or sleep.

Noise levels are measured in decibels (dB). The lower the dB rating, the quieter the unit.

For reference, a quiet room has a noise level of 30 dB. A portable air conditioner with a noise level of 44 dB is about as loud as a soft whisper.

If you’re looking for a quiet portable air conditioner, be sure to check the noise level before making your purchase.

FAQs

How loud should an air conditioner be?

Residential air conditioners generate noise levels that set a limit on how loud an air conditioning device may be when used in homes. When an air conditioning unit is operating, the majority of residential AC units have decibel readings of 72-82.

What brand has the quietest air conditioner?

Frigidaire FHPH132AB1, hOmeLabs Low Noise Portable AC, Honeywell MN14CEDWW, De’Longhi Pinguino 4-in-1 (Super Quiet Small Portable AC) and Whynter ARC-102CS (Quietest 10,000 BTU Portable AC) have the quietest air conditioners.

What is the quietest air conditioner for a room?

A Ductless ‘mini split’ system is the quietest air conditioner for a room, this is because the compressor is outside and ducts do not run throughout the house, which means noise levels while operating are significantly lower.

What BTU air conditioner is most energy efficient?

The Frigidaire FHPH132AB1 is the most energy-efficient air conditioner, with an EER of 9.5 and a sound rating of 51 decibels.

About the Author

Passionate about helping households transition to sustainable energy with helpful information and resources.

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