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"It Sounds Like The House Is Vibrating" The Crushed Vibration Damper

When I turned on the furnace my client said, "It sounds like the house is vibrating."

The crushed vibration damper.

A vibration damper does just that.  It is intended to dampen, or eliminate, any furnace vibration transferring through the house via the metal duct work.

And in this house there was a noticeable vibration.

Things settle over time. 

Supports that hold up a heavy metal duct tube, like the one to the right, can sag, or come loose.

When that happens gravity takes over!

The vibration damper is a rubber membrane that separates two sections of duct work.

In the case to the right it would be on the return side of the furnace.  There would be another one over the furnace itself.

The purpose is to separate the furnace, and its vibration, from being able to transfer through the house when the unit turns on.

In this case the damper has crushed such that one section is now touching the other. 

When the furnace turns on a noticeable vibration is the result.

My recommendation:  I tell my clients to learn as much as they can about their systems and listen to things when they are operating as intended.  That way, if something goes wrong, an unusual sound may be an indicator that there is a newly-developed issue.  In this case a loud vibration was something my client was not used to, and viola!, she could identify it.  Checking around I found the source of the noise.  Sounds, and listening to sounds, is definitely a part of home maintenance.

 

 

 

Jay Markanich Real Estate Inspections, LLC  

Based in Bristow, serving all of Northern Virginia.

Office (703) 330-6388   Cell (703) 585-7560

www.jaymarinspect.com


Comment balloon 13 commentsJay Markanich • November 28 2015 01:12AM

Comments

 Good Saturday morning Jay. I hope the vibration but a smile on your face – LOL

the devil made me say it

Posted by TeamCHI - Complete Home Inspections, Inc., Home Inspectons - Nashville, TN area - 615.661.029 (Complete Home Inspections, Inc.) over 4 years ago

Good morning Jay. Call a professional and get it fixed! Enjoy your day!

Posted by Wayne Martin, Real Estate Broker - Retired (Wayne M Martin) over 4 years ago

I did Michael!  I knew the answer before I showed my client!

Wayne - lift!  Ho!  Lift!  Ho!

Posted by Jay Markanich, Home Inspector - servicing all Northern Virginia (Jay Markanich Real Estate Inspections, LLC) over 4 years ago

Yep.  I guess it doesn't sound right and it doesn't look right either.

Posted by Debbie Gartner, The Flooring Girl & Blog Stylist -Dynamo Marketers (The Flooring Girl) over 4 years ago

I noticed it before my client, Debbie, and waited to hear if she would say something.  She did!

Posted by Jay Markanich, Home Inspector - servicing all Northern Virginia (Jay Markanich Real Estate Inspections, LLC) over 4 years ago

Good morning Jay,

Reminds me of the old octopus heating units! They could have laid on the register and gotten a free massage!

Make yourself a great day.

Posted by Raymond E. Camp, Licensed Real Estate Salesperson Greater Rochester (Howard Hanna Real Estate Services) over 4 years ago

We used to talk to each other via wall registers Raymond!  And listen too...

Posted by Jay Markanich, Home Inspector - servicing all Northern Virginia (Jay Markanich Real Estate Inspections, LLC) over 4 years ago

Not to mention the loss of energy and/or drawing air from where it's located rather than the interior rooms...

Posted by Fred Hernden, CMI, Albuquerque area Master Inspector (Superior Home Inspections - Greater Albuquerque Area) over 4 years ago

Jay Markanich Way to dampen the mood  But you are correct they have a purpose.

Posted by Donald Hester, NCW Home Inspections, LLC (NCW Home Inspections, LLC) over 4 years ago

Sounds, smells and feelings.  Works on houses, cars and people.  Know how they operate when working normally, stay attentive for when they aren't.

Posted by Stephen Weakley (Nationwide Mortgage Services) over 4 years ago

Energy, schmenergy Fred.  Who cares!

I simply waited for her to notice Don.  The return was near the the hardwood floor and I heard it from another room.  I had to foxtrot over there with her so she could recognize the sound.  I'm good at ballroom dancing, by the way.

Absolutely correct Stephen.  Cars especially.  But houses make good and bad sounds when stuff is or isn't right.

 

Posted by Jay Markanich, Home Inspector - servicing all Northern Virginia (Jay Markanich Real Estate Inspections, LLC) over 4 years ago

I guess this is NOT a Beach Boys song Jay Markanich , no "good, good, good; good vibrations"

Posted by DEANNA EARLY - - ( NMLS # 268590 ), Highest Ranked Mortgage Loan Originator Virginia (American National Bank & Trust) over 4 years ago

Now there is a reference most people might not get, Deanna!  Just today the realtor and I sung the words of a Beach Boys song to the buyer, who had never heard them before!

Posted by Jay Markanich, Home Inspector - servicing all Northern Virginia (Jay Markanich Real Estate Inspections, LLC) over 4 years ago

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