Proper Duct Size - HVAC - DIY Chatroom Home Improvement Forum


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

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

Reply
 
Thread Tools Display Modes
Old 12-08-2011, 03:04 PM   #1
Newbie
 
Join Date: Dec 2011
Posts: 5
Rewards Points: 10
Default

Proper Duct Size


I have a 2,100 sq. ft. ranch that I need to run the ductwork in. It’s a long rectangle (25’ x 80’) with one room that sticks out off of the side. The furnace will be right in the middle. The hard part is that half of the length (40’) will have an attic and the other half is all vaulted ceilings with no attic. So for the section that does have an attic would it be best to run a metal duct and tap off with flexible to each bedroom? I know it makes it hard without seeing a plan, but basically there will be 40’ of duct in the attic branching off to 6 rooms (all 9’ ceilings in this area). So the attic half is 25’ x 40’. From where the furnace is there is 10’ to the right and then 30’ to the left. The main question I have is the proper duct size for the main trunk and then each branch down the trunk line. The other half of the house is a different story now. I’m not sure what to do about that. Maybe a soffit to run the ducts in?
Anyway sorry for rambling on. Any info would be greatly appreciated.
Thanks

Advertisement

fride360 is offline   Reply With Quote
Old 12-08-2011, 03:29 PM   #2
Member
 
Join Date: Feb 2010
Posts: 128
Rewards Points: 75
Default

Proper Duct Size


There's several ways to skin this cat. Without knowing a little more about your floor plan it's hard to give credible advice.

Advertisement

brandonmcginnis is offline   Reply With Quote
Old 12-09-2011, 09:25 AM   #3
Newbie
 
Join Date: Dec 2011
Posts: 5
Rewards Points: 10
Default

Proper Duct Size


That's what I figured. I have attached a link that shows the floor plan. I have decided that I wall run the ducts in the crawl space. I just need help figuring out sizes and step downs. Figuring all ceilings are 9'

http://imageshack.us/photo/my-images/249/housenw.png/
Thanks
fride360 is offline   Reply With Quote
Reply


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
?an Insulated Flexible Duct - half attached and half unattached ? tran Roofing/Siding 2 06-21-2012 07:25 PM
Proper size support beam. Jose Torres Carpentry 2 03-07-2011 05:21 PM
Duct size Davy D HVAC 0 12-16-2010 10:34 PM
What size duct i need lenexx miaisis1 HVAC 5 07-04-2010 11:12 AM
adding duct work and outlet jjrbus HVAC 17 05-30-2010 03:13 PM




Top of Page | View New Posts