How To make Furnace quieter

As folks who own homes, we know how vexing and disturbing a loud furnace can be. A constant clattering, buzzing, or pounding may hinder our focus, sleep, or even communication.

Since we have had our own share of a raucous furnace, we decided to delve into the topic and discovered various ways to make it less noisy.

We will discuss what we discovered and provide some guidance on how to reduce furnace noise in this article. Our solutions are easy to execute and can help you have a more peaceful ambience, whether you own or rent a home.

Keep reading to find out How To Make Furnace quieter and enhance your life’s quality.

How To make Furnace Quieter

How To make Furnace Quieter

Identify the Source of the Noise

Different types of furnace noises

  • Squealing noises: this may indicate a problem with the blower belt or bearings.
  • Rattling noises: may indicate loose screws or other components.
  • Grinding noises: may indicate a problem with the blower wheel or motor bearings.
  • Humming or buzzing noises: may indicate a problem with the transformer or capacitor.
  • Booming or popping noises: may indicate a problem with the burner or heat exchanger.

How to identify the source of the noise

  • Hear the noise: Listen to the furnace when it’s on to find where the noise is coming from.
  • Look for loose parts: Check for screws, bolts, or panels that may be causing rattling sounds.
  • Examine the blower belt: A high-pitched squeal may mean the blower belt is worn.
  • Check the blower motor: A grinding noise may indicate an issue with the motor bearings or wheel.
  • Inspect the burner: Booming or popping sounds could be from a problem with the burner or heat exchanger.
  • Check the ductwork: Whistling or whooshing sounds might mean there’s a problem with the ducts.
  • Call an expert: If you can’t find a noise source, it’s best to call a technician to diagnose the issue.

also read: how to make blower fan quieter

Reduce Vibration and Rattling Noises

You hear the furnace making a noise. It’s usually because things are shaking and rattling around. Screws and bolts might be loose, parts might be worn out, or insulation might be lacking.

It’s a bothersome noise, hard to tune out. Don’t fret, you can put an end to it by following easy measures. Then you can relax in a quieter, more peaceful home.

Tighten Loose Screws and Bolts

Tighten Loose Screws and Bolts

To stop furnace shakes and noises, fix loose screws and bolts. Furnaces shake and jiggle, making material loosen over time. This shake then produces rattles that reach all corners of the home.

To mend this, grab a wrench or a socket set. Identify which screws or bolts are loose and tighten them until they’re secure. Don’t go overtighten them, or you’ll break the furnace.

Replace Worn Out Parts

If tightening screws and bolts doesn’t fix it, change the parts that are worn. The furnace parts can get old and break, causing louder shaking and sounds.

Some parts that can wear down include the blower wheel, belt, and bearings. If you think you know which part is making the noise, get an HVAC expert to figure it out and swap the bad part.

Add Insulation to Dampen Vibration

To make the furnace-less noisy, one good trick is to add insulation. This stuff helps to stop vibrations and soak up sound, making the furnace more peaceful.

There are different kinds of insulation like fibreglass, foam, and rubber. But you need to choose the right one for your furnace that can handle high heat.

Clean Air Ducts and Vents

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Dirty air ducts and vents can cause noisy airflow. Dirt, dust, and debris can clog them up, making your furnace work too hard, and that causes more noise. You can reduce this type of noise by cleaning your air ducts and vents often.

You can hire professionals to clean your air ducts, or you can do it yourself with a vacuum cleaner that has a brush attachment. Remember to turn off the furnace before you start cleaning.

Replace Air Filters

Air filters that are old and blocked can make your furnace noisy by slowing down the air. As filters gather dirt, they can make your furnace work harder and louder. You can reduce the noise by changing your filters often. The frequency of changes relies on the filter type and how much you use your furnace.

note: Experts suggest changing the filter every 1-3 months, but you should read the manufacturer’s instructions for exact recommendations.

Install Duct Silencers or Soundproofing Material

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To make the air duct quieter, try cleaning the ducts and replacing the filters. If that doesn’t work, you can install duct silencers or soundproofing material. These will make the air move slower and absorb sound waves, which reduces noise.

You can pick from a bunch of silencers and soundproofing materials, but Kinetics In-Joist Duct Silencers are best for stopping sound from going both ways through your ducts. You should ask an HVAC expert to help you choose best one for your furnace and ducts.

Clean Burners and Heat Exchangers

Clogged burners and heat exchangers make a loud noise. As time goes by, they gather dirt, dust, and waste, which blocks the air and lowers your furnace’s efficiency. To avoid this, make a cleaning schedule and stick to it.

Kill the furnace and let it chill before you commence scrubbing the burners and heaters. Take off the panels and use a gentle brush to clean them.

Clean the area around them too with a vacuum to remove any debris. Be sure to follow the maker’s directions for a safe and efficient clean.

Adjust the Burner Flames

High or low flames make noise, pop or bang. To change them, turn off the furnace and wait until cools. Take off panels and find burners. Flames must be steady and blue. If they’re yellow or flicker, adjust them.

To adjust, use a screwdriver on burners. Turn the screws right to lower the flames, and left to make them higher. Watch flames as you adjust, don’t do too much.

Install a Soundproofing Enclosure

If your burners are loud and adjusting them doesn’t work, try putting a soundproof box around your furnace. This box is made of materials that soak up noise and can cut the sound by half.

But before you go ahead, talk to an expert to set it up correctly and safely. Pick a box that suits your furnace and meets safety rules.

note: Were you aware that a loud furnace can harm your health? Research in the International Journal of Environmental Research and Public Health suggests that being around noisy surroundings can cause anxiety, insomnia, and heart complications. You can better your life and health by making your furnace quieter.

Regular Maintenance to Prevent Furnace Noise

To keep your furnace running well and stop it from making noise, you must maintain it often. Not doing so can cause dust, dirt, and other junk to pile up, which can lead to various issues, like strange furnace noises.

We will show you how to prevent furnace noise by doing things like sticking to a maintenance schedule, frequently changing air filters, and clearing the space around the furnace.

Schedule Regular Maintenance

Regular maintenance stops furnace noise. It’s a big step. It keeps your furnace working well and catches small problems early. You should get a professional to check your furnace once a year. They’ll clean and inspect it, and fix anything that needs fixing before it becomes a bigger problem.

Change Air Filters Regularly

Good air filters make the furnace go well. They stop dust, dirt, and junk from gathering up, which can hurt the furnace and make weird sounds. To stop this, you must switch your air filters often.

Usually, experts say to do this every three months. But if you own pets, live in a dusty spot, or someone in your house has allergies or breathing problems, you may need to switch them more.

Keep the Area Around the Furnace Clear

Clear the space around your furnace to avoid danger and allow good airflow. Remove anything that could block the air, like clutter, boxes, or other stuff. And keep enough room around the furnace so you can get to it easily when you need to do maintenance.


A loud furnace can be bothersome and disturb your calm home. But, with the tips in this article, you can make your furnace quieter and enjoy a comfier living space.

You can find the source of the noise, reduce vibration and rattling, and cut down airflow and duct noises. regular maintenance, changing air filters, and clearing the area around the furnace can prevent furnace noise and keep your system working well.

Why wait? Take action now and use these methods to make your furnace quieter. Don’t let a noisy furnace ruin your life and prevent you from enjoying your peaceful home. With the right approach, you can guarantee that your furnace runs efficiently and quietly.

So, let’s get started. Read on and find out how you can make your furnace quieter today!

About Author

this is john Andrew from Australia, I am an architect I have worked for the home improvement company Bunnings. I am a home improvement specialist as well as a part-time blogger. Where I will keep giving you tips on soundproofing, you follow our blog.

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