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dguidry
MMT Super Elite Member
Joined: Tue Jun 29, 2010 1:20 pm Posts: 11166 Location: Cecilia, LA
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 Need HVAC help to silence registers, return and outside fan
I'm in the process of installing a recording studio in a building with existing HVAC. I need to quiet the damn thing. For register noise I plan to pull off the registers and connect flex ducts suspended from the ceiling to run 8 feet out from the register in an S pattern to deflect the sound internally. What do I use to convert from the square register to round flex ducts?
Regarding the return, it a large square. What connector is available to convert that to flex duct or is there another solution to quiet it?
Regarding the outside fan and compressor, can I enclose it, are there noiseless fans I can substitute? Any recommendations?
Thanks
_________________ Formerly:1648 Homemade Cypress Crawfish Skiff GTR23 Performance Cam and Heads; 17x46 Gator Tail with 35GTR and Hoyt's cam;s Currently: 17x48 Gator Tail with XD40 EFI. “Wisdom is not just expertise. It is knowing how much of various areas of expertise you need to know in order to make the decisions that the world needs and that you want to do,” Columbia University President Lee Bollinger.
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Sat Jul 04, 2015 9:51 pm |
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North LA Hunter
MMT Elite Member
Joined: Mon Aug 02, 2010 8:39 pm Posts: 6976 Location: West Monroe, LA
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 Re: Need HVAC help to silence registers, return and outside
You can go to a hvac shop and get square to rounds or they can send you somewhere that can.
Are you saying that the grilles are loud and can hear the air coming out of it?
If so you need bigger flex and bigger grilles.
Also if the return air grille is near you might can hear that also. Needs a bigger grille also.
As for the condensing unit I wouldn't enclose it. That could cause many problems. That wouldn't let your unit cool as it should.
Sent from my beeper
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Sat Jul 04, 2015 9:57 pm |
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dguidry
MMT Super Elite Member
Joined: Tue Jun 29, 2010 1:20 pm Posts: 11166 Location: Cecilia, LA
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 Re: Need HVAC help to silence registers, return and outside
The noise is mostly mechanical. Just need to deflect the sound of blower through the two registers near the blower and the return. Very little noise from rest of registers farther away. Think there's something called a Z duct plelum for that.
_________________ Formerly:1648 Homemade Cypress Crawfish Skiff GTR23 Performance Cam and Heads; 17x46 Gator Tail with 35GTR and Hoyt's cam;s Currently: 17x48 Gator Tail with XD40 EFI. “Wisdom is not just expertise. It is knowing how much of various areas of expertise you need to know in order to make the decisions that the world needs and that you want to do,” Columbia University President Lee Bollinger.
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Sun Jul 05, 2015 9:06 am |
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B.M. Barrelcooker
MMT F.E.
Joined: Mon Feb 16, 2009 2:13 pm Posts: 992 Location: Aintry,Ky
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 Re: Need HVAC help to silence registers, return and outside
You gonna pay folks to sing in a can ?
Sent from my iPhone using Tapatalk
_________________ Twin aucouoin 17-48's and three 6's of the pd.
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Sun Jul 05, 2015 9:20 am |
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B.M. Barrelcooker
MMT F.E.
Joined: Mon Feb 16, 2009 2:13 pm Posts: 992 Location: Aintry,Ky
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 Re: Need HVAC help to silence registers, return and outside
http://youtu.be/YZtgZ5fHOuUSent from my iPhone using Tapatalk
_________________ Twin aucouoin 17-48's and three 6's of the pd.
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Sun Jul 05, 2015 9:23 am |
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dguidry
MMT Super Elite Member
Joined: Tue Jun 29, 2010 1:20 pm Posts: 11166 Location: Cecilia, LA
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 Re: Need HVAC help to silence registers, return and outside
_________________ Formerly:1648 Homemade Cypress Crawfish Skiff GTR23 Performance Cam and Heads; 17x46 Gator Tail with 35GTR and Hoyt's cam;s Currently: 17x48 Gator Tail with XD40 EFI. “Wisdom is not just expertise. It is knowing how much of various areas of expertise you need to know in order to make the decisions that the world needs and that you want to do,” Columbia University President Lee Bollinger.
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Sun Jul 05, 2015 10:03 am |
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msm8281
MMT Elite Member
Joined: Fri Oct 09, 2009 1:50 pm Posts: 9673 Location: New Iberia, La.
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 Re: Need HVAC help to silence registers, return and outside
Turn the air off when they rap. A lil heat never hurt anyone.
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Sun Jul 05, 2015 10:19 am |
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North LA Hunter
MMT Elite Member
Joined: Mon Aug 02, 2010 8:39 pm Posts: 6976 Location: West Monroe, LA
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 Re: Need HVAC help to silence registers, return and outside
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Sun Jul 05, 2015 4:10 pm |
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Rooterpig
MMT Pro Member
Joined: Sat May 19, 2012 6:48 am Posts: 125 Location: East central Florida.
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 Re: Need HVAC help to silence registers, return and outside
Why don't you just text your buddy o-bummer, and let him know it's for you and it's rap... I am sure he will have it done by Wednesday. 
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Mon Jul 06, 2015 1:45 pm |
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Trousertrout
MMT 1000 Club
Joined: Tue Oct 18, 2011 3:18 pm Posts: 1060 Location: Ohio-The land of few ducks
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 Re: Need HVAC help to silence registers, return and outside
Only sure way to do it is to line the interior of the main trunk with 1/2" insulation. The flex lines will help. Also replace the blower belt if it has one. That is what most of the mechanical noise comes from
_________________ 23 swomp/ 1542 tracker
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Mon Jul 06, 2015 2:14 pm |
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dguidry
MMT Super Elite Member
Joined: Tue Jun 29, 2010 1:20 pm Posts: 11166 Location: Cecilia, LA
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 Re: Need HVAC help to silence registers, return and outside
_________________ Formerly:1648 Homemade Cypress Crawfish Skiff GTR23 Performance Cam and Heads; 17x46 Gator Tail with 35GTR and Hoyt's cam;s Currently: 17x48 Gator Tail with XD40 EFI. “Wisdom is not just expertise. It is knowing how much of various areas of expertise you need to know in order to make the decisions that the world needs and that you want to do,” Columbia University President Lee Bollinger.
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Mon Jul 06, 2015 2:24 pm |
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Terraboat
MMT Pro Member
Joined: Sun Jan 18, 2015 10:46 am Posts: 288 Location: Northwest Louisiana
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 Re: Need HVAC help to silence registers, return and outside
If larger and different duct designs don't do it, thre make white noise (not for your studio though) and active noise canceling systems ( but they can be pricey). Maybe you can get lucky and they will install one at the wrong studio for free.....
_________________ 2014 PD 18x54 SBX w/ 36 EFI PD E5
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Mon Jul 06, 2015 3:18 pm |
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dguidry
MMT Super Elite Member
Joined: Tue Jun 29, 2010 1:20 pm Posts: 11166 Location: Cecilia, LA
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 Re: Need HVAC help to silence registers, return and outside
_________________ Formerly:1648 Homemade Cypress Crawfish Skiff GTR23 Performance Cam and Heads; 17x46 Gator Tail with 35GTR and Hoyt's cam;s Currently: 17x48 Gator Tail with XD40 EFI. “Wisdom is not just expertise. It is knowing how much of various areas of expertise you need to know in order to make the decisions that the world needs and that you want to do,” Columbia University President Lee Bollinger.
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Mon Jul 06, 2015 3:28 pm |
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msm8281
MMT Elite Member
Joined: Fri Oct 09, 2009 1:50 pm Posts: 9673 Location: New Iberia, La.
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 Re: Need HVAC help to silence registers, return and outside
Noise is noise. You shouldn't segregate and discriminate[FACE WITH TEARS OF JOY]
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Mon Jul 06, 2015 3:35 pm |
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North LA Hunter
MMT Elite Member
Joined: Mon Aug 02, 2010 8:39 pm Posts: 6976 Location: West Monroe, LA
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 Re: Need HVAC help to silence registers, return and outside
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Mon Jul 06, 2015 5:40 pm |
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Terraboat
MMT Pro Member
Joined: Sun Jan 18, 2015 10:46 am Posts: 288 Location: Northwest Louisiana
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 Re: Need HVAC help to silence registers, return and outside
Go big or go home. Don't have a studio where you have to rig stuff. Do it right to start with and have pride in it. You will be embarrassed to be an established lawyer and have to turn off AC to work.
_________________ 2014 PD 18x54 SBX w/ 36 EFI PD E5
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Mon Jul 06, 2015 9:16 pm |
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