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 10-23-2012, 08:00 PM   #16
Experienced
 
Jackofall1's Avatar
 
Join Date: Dec 2010
Location: Southern Michigan
Posts: 2,822
Rewards Points: 2,000
Default

Enlarging two 6" runs


You could always skip and the extra work with ducting and add a couple of booster fans, control them so they turn on with the furnace fan, much easier.

Mark

__________________
When its all said and done there is usually more said than done
Jackofall1 is offline   Reply With Quote
Old 10-25-2012, 10:35 AM   #17
Member
 
Join Date: Nov 2011
Location: Raleigh, NC
Posts: 70
Rewards Points: 75
Default

Enlarging two 6" runs


A booster fan seems more like a band aid than a permanent fix.

Plus for, the same amount of money or perhaps less it would be better to invest in fixing the actual problem and not rely on a solution that requires more electricity and will have to be replaced in a few years.
Rewound98 is offline   Reply With Quote
Old 01-10-2013, 02:44 PM   #18
Member
 
Join Date: Nov 2011
Location: Raleigh, NC
Posts: 70
Rewards Points: 75
Default

Enlarging two 6" runs


For a recap, I ended up replacing most of the flex and things are much better.

I ran 10" hard pipe from the plenum to a 10x7x7 wye located after it entered the soffit using a more gradual bend.

Then I ran 7" hard pipe from the wye to two 90s and reduced it to the 6" flex.

(There wasn't enough room in the soffit for 10" pipe -- otherwise I would have run further.)

I then pulled the 6" flex very tight, secured all the connections well, and insulated as needed.

Postmortem showed several holes in both flex runs and at least four feet too much flex.


Air flow is much better and temperature is more consistent with the rest of the house.

In the future I'll replace the remaining 6" flex with 7" hard pipe when we replace the ceiling in the garage and re-insulate.

Rewound98 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
Smell when boiler runs? dave12345 HVAC 13 11-11-2013 09:08 AM
insulating and insulated duct runs hummer4x4guy HVAC 4 01-09-2012 03:52 PM
a/c runs for many hours maybe return vent issues ddeennis HVAC 24 08-02-2011 05:54 PM
runs and sanding oscarMadison Painting 1 02-24-2009 06:46 AM
Remodeling upper...existing runs to the basement? wease Electrical 3 02-11-2007 11:49 AM




Top of Page | View New Posts

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