First Furnace Install - Need Some Help Getting Started - HVAC - Page 2 - DIY Chatroom Home Improvement Forum

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


Thread Tools Display Modes
Old 10-05-2008, 08:45 AM   #16
Old Guy!
Join Date: Oct 2008
Posts: 1
Rewards Points: 10

Originally Posted by hvaclover View Post
I'll email the moderators and tell them to expect him

IP noted

ROTFLMAO! Fancy meeting you here!

Oh yea, we're ready and waiting! LOL


Last edited by HeyBob; 10-05-2008 at 08:49 AM.
HeyBob is offline   Reply With Quote
Old 10-05-2008, 09:19 AM   #17
oops, did I do that!
Join Date: May 2008
Location: mid michigan
Posts: 290
Rewards Points: 250

A plenum is usualy the first piece of metal on the outlet of the furnace, the trunkline is any ductwork that follows.

If you are using a horizontal built up air handler, you may not need a plenum, the main trunk screws directly on the air handler discharge opening.

Establishing a consistent pressure and smooth, uniform flow is what needs to be focused on, plenums are sized for and used to establish both, so that distribution of the air can be predictable.

Last edited by 8 Ball; 10-05-2008 at 09:57 AM.
8 Ball is offline   Reply With Quote
Old 10-11-2008, 11:55 AM   #18
An old Tradesmen
Join Date: Oct 2008
Location: Somewhere
Posts: 32,954
Rewards Points: 7,274

6" flex, will give you a high static pressure, if you try to move 100 CFM through it.

You may be looking a duct sizers that are intended for use for sheet metal.

You may be confusing static pressure and friction rate.

They are not the same thing, and that misconception, has harmed more furnaces then not.


beenthere 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
Heil Furnace Burner Problem timothyr HVAC 79 02-12-2014 07:01 PM
How to install an expansion tank in my hot water furnace? DanBress HVAC 18 10-08-2008 03:57 PM
furnace install michael cook HVAC 7 03-13-2007 07:49 PM
Could installing a furnace to the floor joists cause the floor to slope? JKL HVAC 5 01-03-2007 09:23 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1