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

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 11-07-2010, 11:06 AM   #16
Member
 
Join Date: Oct 2010
Location: GA
Posts: 163
Share |
Default

Planning on New duct work..any feedback...


thanks again beenthere

kilosos2 is offline   Reply With Quote
Old 01-17-2011, 08:41 PM   #17
Member
 
Join Date: Oct 2010
Location: GA
Posts: 163
Default

Planning on New duct work..any feedback...


Hey Beenthere and DIY community.

I made some changes this past weekend on the ductwork downstairs. After I started opening some of the ceiling I really saw what was going on with my ductwork. LOL I had one 6" duct off the plenum that feed a distribution box and split into a 8" and 6" . No wonder I had crappy air pressure from those vents. Anyways I fixed it by making it a 8" duct from plenum feeding into a 8x6x6 wye. I insulated the wye also. I placed dampers also on the 8" duct although I didn't need to balance much. The other 6" duct run I just made it feed into a new 8x8 drop box with a 3 way vent. That 6" also has a damper installed at the start off collar. Everything came out very nice.

Anyways I wanted to ask beenthere there is one 10" duct that makes a run into family room. I first thought that 10" was being cramped by 2x4( as I originally post about it here on diychatroom) but it is not and it makes a nice clear run without much sag and maybe just 2 turns. The 10" connects into a triangle distribution box and then it feeds the a 4" , 6" and 8". Is it a good idea to make a ductboard trunkline in replacement of the triangle distribution box? After I made the ductwork changes this past weekend my family rooms air pressure also increased. The 8" has good pressure, the 6" is ok but kinda low and the 4" is crappy still. I was wondering if getting rid of the triangle distribution box would help. I also think the ducts need to be sealed with mastic. Do you think it will be a good idea?

Last edited by kilosos2; 01-17-2011 at 08:46 PM.
kilosos2 is offline   Reply With Quote
Old 01-18-2011, 04:28 AM   #18
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,416
Default

Planning on New duct work..any feedback...


It won't hurt. Those triangle wedges are crappy for air flow. They're very turbulent inside and the air doesn't get forced out the way some people say it does. Just too much turbulence inside of them.

Also fix any sags you can. How long is the 10" again.
beenthere is online now   Reply With Quote
Old 01-18-2011, 07:39 AM   #19
Member
 
Join Date: Oct 2010
Location: GA
Posts: 163
Default

Planning on New duct work..any feedback...


Ok I will remove that triangle box and make a 10x8 ductboard trunkline maybe about 4 ft long.k I will also just seal up the ducts. The 10" duct run is about 20 ft I think more or less. I can also just make ductboard trunkline from the plenum into the family room but that is going to require cutting into more ceiling space!! loll
kilosos2 is offline   Reply With Quote
Old 01-18-2011, 10:15 PM   #20
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,416
Default

Planning on New duct work..any feedback...


You would want a 12X8 duct. A 10X8 won't carry as much air as a 10" round.
beenthere is online now   Reply With Quote
Old 01-23-2011, 10:28 PM   #21
Member
 
Join Date: Oct 2010
Location: GA
Posts: 163
Default

Planning on New duct work..any feedback...


Hey Beenthere

I have been pondering about what to do with replacing the triangle box. I cant make a ductboard trunkline to fit on the plenum.. it seems to be too much labor/cost/cutting and finishing involved. loll The 10" duct isn't leaking at least from the plenum, I still havent opened that area in the family room to check the triangle box to see if its leaking or not. I will be cutting into it on tuesday. What do you think about using a tri wye? I found some on this website

http://bestbuyheatingandaircondition.../merchant.mvc?

I made a wye for that 8" that split 8x6x6 and it came out nice.
What combination of the tri wye would have good air flow and air pressure with a 10" duct as supply. What I was thinking of do is placing 3 ducts with 2 having 3 way vents. The 3 way will kinda of shoot off everywhere. And 1 ( a 8") duct is going to be on the wall adjacent to the vaulted ceiling (12-13 ft high ceiling) shooting down into the family area. I am going to post pics later of how the ceiling looks to give you a idea. I will also place a damper on the 10" startoff collar. Someone also told me to install at the 10" take off a scoop damper for more air pressure. I am thinking a 10x8x5x5 tri wye or a 10x7x5x5. What do you think?

Last edited by kilosos2; 01-23-2011 at 10:40 PM.
kilosos2 is offline   Reply With Quote
Old 01-24-2011, 04:46 AM   #22
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,416
Default

Planning on New duct work..any feedback...


I would probably use something more like a 10X8X6X6. And use a damper in the 8 inch to help put more air to the 6" if needed.
beenthere is online now   Reply With Quote
Old 01-24-2011, 02:19 PM   #23
Member
 
Join Date: Oct 2010
Location: GA
Posts: 163
Default

Planning on New duct work..any feedback...


Ok I am going to try that configuration. I'll let u know how it pans out. And should I try that scoop damper or no?
kilosos2 is offline   Reply With Quote
Old 01-24-2011, 03:13 PM   #24
Member
 
Join Date: Oct 2010
Location: GA
Posts: 163
Default

Planning on New duct work..any feedback...


I just ordered a 10x8x6x6 tri wye lol...ouch its $65 with shipping. Let see how this works out.
kilosos2 is offline   Reply With Quote
Old 01-24-2011, 04:20 PM   #25
Member
 
Join Date: Jan 2008
Location: N.C.
Posts: 418
Default

Planning on New duct work..any feedback...


This is what Lxxxs home improvement store sells on the shelf. I have ordered duct components through the store.

http://www.standexadp.com/catsearch.php
Earnie is offline   Reply With Quote
Old 01-24-2011, 06:51 PM   #26
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 24,416
Default

Planning on New duct work..any feedback...


Quote:
Originally Posted by kilosos2 View Post
Ok I am going to try that configuration. I'll let u know how it pans out. And should I try that scoop damper or no?
A scoop definitely won't hurt.


And those Tee's aren't cheap, but worth the money for the air flow improvement you get.
beenthere is online now   Reply With Quote
The Following User Says Thank You to beenthere For This Useful Post:
kilosos2 (01-26-2011)
Old 01-25-2011, 06:40 AM   #27
Member
 
Join Date: Oct 2010
Location: GA
Posts: 163
Default

Planning on New duct work..any feedback...


Thanks for the website Earie. They got a big selection. Ya beenthere it is worth it. I hope I receive everything by friday so I can try on the weekend. Thanks again for your guys help and guide. I really appreciate it big time.
kilosos2 is offline   Reply With Quote
Old 01-25-2011, 12:56 PM   #28
Member
 
Join Date: Jan 2008
Location: N.C.
Posts: 418
Default

Planning on New duct work..any feedback...


Thanks for your link too. You may have saved me some money.

I'll be changing out four 90 degree branches off a main trunk. Instead of using four single Wyes, looks like I can use two Tri-Wyes.
Earnie is offline   Reply With Quote
The Following User Says Thank You to Earnie For This Useful Post:
kilosos2 (01-26-2011)
Old 01-26-2011, 09:21 AM   #29
Member
 
Join Date: Oct 2010
Location: GA
Posts: 163
Default

Planning on New duct work..any feedback...


LOLL Awesome! Well good luck with that!!!!!

kilosos2 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
ECO / green options for insulating HVAC duct work ACtawk HVAC 3 10-03-2010 06:02 PM
return air duct work charter HVAC 1 09-26-2010 06:34 PM
fans and duct work kjacobs4242 HVAC 2 09-26-2010 04:15 PM
HVAC duct work is driving my family insane! Taipans HVAC 6 02-05-2009 11:01 AM
Tiger Foam On Duct Work atw58 Building & Construction 1 04-25-2008 10:25 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.