Blog Post

Tips for a Quiet HVAC Operating System

  • By Admin
  • 10 Jan, 2019

If you don't like the noise your HVAC system generates, take measures to get rid of or reduce the noise. Keep reading to learn what you can do to make your system quieter.


Install a Quiet Unit

HVAC systems are electromechanical systems, which mean they have parts that move and generate some level of noise. The fans, motors, and even the flow of air around the system must generate some noise. However, some HVAC models are noisier than others. Therefore, if you need to install a new unit, opt for the quieter models.

Here are some technologies that result in quiet HVAC systems:

  • The use of rubber mounts to dampen the sounds from the compressor and condenser as they run.
  • The use of new fan designs that don't generate as much noise when the fan moves.
  • The use of variable-speed blower fans that automatically adjust fan speed and tend to run at quieter modes.

Most modern systems have these and other features that reduce noise. Therefore, if you have an older model that you want to replace, look for a new model with as many of these features as possible.


Install a Unit of the Right Size

If you want to install a new HVAC system, ensure you choose the right size for your home. Note that some of the factors that determine the size of the system include the local climate, the size of the home, the available insulation, and the ceiling height.

Your HVAC will be noisier if it's the wrong size. A smaller unit than your home needs will run constantly and generate noise all the time. A bigger unit that your home needs will have short stop-and-start cycles and generate a lot of noise. Engage the services of a professional technician to help you choose the right size.


Install a Sound Blanket

If you already have an HVAC system, you can reduce its sounds with a sound blanket. A sound blanket is a blanket made of fiberglass or polyester material, and when hung over a noisy part of your HVAC system, such as a duct, it will muffle the sound. Sound blankets are particularly useful if you want to silence the outside unit, which tends to generate considerable noise.

Don't forget to leave some room for air circulation when you install the sound blanket. You will starve the unit of air if you install the blanket too close to the unit. Inefficient air circulation leads to a noisy operation as the system tries to ramp up its operations.  


Maintain the HVAC

The state of your HVAC system also determines whether it runs quietly or noisily. Maintain your HVAC system if you don't want it to be too noisy. Here are some of the specific maintenance issues that may affect your HVAC's noise:

  • Loose parts generate noise due to their vibrations
  • Damaged parts, such as damaged fans or bearings, generate noise since they don't run smoothly
  • A dirty unit because it struggles to produce the heating or cooling you desire

Therefore, have a regular maintenance program for your HVAC system if you don't want it to be noisy.


Insulate the Ductwork

Damages or obstructions are not the only things that trigger noise in HVAC systems; even ductwork without any problems generates some noise due to the airflow they carry. Some of the noise also comes from the expansion and contraction of the ductwork, which is metal, due to temperature changes. Install insulation around the ductwork to silence some of the sounds.

As you can see, you don't have to suffer the noise of an HVAC system; the above and other measures can help you enjoy a quiet system. At AC Service Today, we have quiet systems and can also help you deaden the sounds from the system you currently use. Contact us for a quote on how we can help you silence your HVAC system.

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