Reduce Noise Of Air Handler Through Ceiling - HVAC - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC


Thread Tools Display Modes
Old 09-13-2010, 12:50 PM   #1
Join Date: Jun 2008
Posts: 68
Rewards Points: 75

Reduce noise of air handler through ceiling

My air handler sits on the ceiling joists right above my master bedroom. It is very noisy to say the least. There are no isolation pads underneath it either. I know adding pads under it will help reduce the noise, but I want to do it right. How much quieter would it be if I hung the unit from the roof rafters instead? There are no codes in my area, this is a stick built house circa 1978 w/2x6 rafters. If the improvement is minimal, I'll go with the pads, otherwise I don't mind putting the work in to hang it.


bigburb is offline   Reply With Quote
Old 09-13-2010, 05:19 PM   #2
Hvac Pro
yuri's Avatar
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 14,705
Rewards Points: 52

Try the pads first, cheap easy fix. Check the blower wheel to see if it is off balance due to excess dirt on the blades. May have a off balance wheel from the factory and need a new one.


"Cut it twice and it is still too short".
yuri is online now   Reply With Quote
Old 09-13-2010, 08:38 PM   #3
Join Date: Sep 2010
Posts: 28
Rewards Points: 27

If you're going to stay in the house, I recommend hanging the unit with spring isolators. Don't forget to add an isolation boot between the unit and the discharge duct work too.

Is the AHU internally insulated? That will also help to reduce noise, but be mindful of heat buildup and duct area.
OldSingy is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Paint peeling off Bathroom Ceiling!!! armen30 Painting 17 12-08-2011 08:26 AM
Ceiling condensation icemand Building & Construction 1 12-15-2009 05:16 AM
Popcorn Ceiling Repair CecszaR Painting 7 08-28-2009 03:37 AM
Old ceiling replacement idsp General DIY Discussions 12 07-25-2009 10:48 AM
Blending ceiling patch with existing sheet-rock (slight texture) gmhut Painting 3 07-29-2008 11:16 AM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1