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FG Heater Ductwork


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ojtv8cj 
Member - Posts: 10
Member spacespace
Joined: May 03, 2006
Location: United States
Posted: May 23, 2006 at 10:11 AM / IP Logged  
First project and what I am wanting to accomplish is reshaping a defroster plenum with a FG section.  My question is this - Instead of using fleece for the initial shape, can I just use the FG mesh?  I am going to aluminum foil and tape the plenum to use as the mold and then rivet it all together as it is a plastic to FG and it will be easier.  Any thoughts?  I will post pictures after I start it - if that will make it easier to understand.  Just doesn't have the cool factor as enclosures and amp racks tho.
Velocity Motors 
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Joined: March 08, 2002
Location: Manitoba, Canada
Posted: May 23, 2006 at 11:49 AM / IP Logged  
What's a plenum ?FG Heater Ductwork - Last Post -- posted image.
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
ojtv8cj 
Member - Posts: 10
Member spacespace
Joined: May 03, 2006
Location: United States
Posted: May 23, 2006 at 2:17 PM / IP Logged  
It is the "box" that runs from the cowl section of my Jeep to the heater box on the firewall.  The box runs from below the vent on the cowl over to the passenger side and down into the deater box to supply the defroster and heater with fresh air.  It is in the way and I have to reshape it.
primal impulse 
Member - Posts: 20
Member spacespace
Joined: May 16, 2006
Location: United States
Posted: May 23, 2006 at 5:05 PM / IP Logged  
if your gonna use your existing plenum as a basic shape, then no you do not need fleece. Just resin over the aluminum foil and add your matting. Make sure to build a few layers, making sure the shape holds up.
Hustle, Loyalty, Respect
crazyoldcougar 
Copper - Posts: 185
Copper spacespace
Joined: March 03, 2006
Location: Canada
Posted: May 23, 2006 at 10:16 PM / IP Logged  

you are going to need soomethiing to hold the fiberrrglass in its place it is curing, foam or somethiing...what does the reshaping involve? cuttiing out piecees or adding pieces?

a plenum is the main /trunk line off the heater, the one all the other heating/ cooling vents run off of...LOL in a car i am not sure if it called a plenum...but to people in the HVAC industry it is the piece of steel directly above your furnace

Fiberglass Guru.
ojtv8cj 
Member - Posts: 10
Member spacespace
Joined: May 03, 2006
Location: United States
Posted: May 24, 2006 at 8:07 AM / IP Logged  
crazyoldcougar wrote:

you are going to need soomethiing to hold the fiberrrglass in its place it is curing, foam or somethiing...what does the reshaping involve? cuttiing out piecees or adding pieces?

a plenum is the main /trunk line off the heater, the one all the other heating/ cooling vents run off of...LOL in a car i am not sure if it called a plenum...but to people in the HVAC industry it is the piece of steel directly above your furnace

I am basically rebuilding the part that turns down into the heater box to make it narrower.  So I will be cutting out a piece and then FG a section to rivet it back together in the shape that I want. I think that I got the answer that I was looking for. 

I design aeration blowers and we call them plenums!  I have no idea what the actual part would be called!! LOL  Sorry for the confusion.

toolinmaine 
Member - Posts: 26
Member spacespace
Joined: November 07, 2005
Location: United States
Posted: May 25, 2006 at 6:22 AM / IP Logged  
ok how do you pronounce plenums... is it like "FLUH NUMS" OR "PUHLEE NUMS" help me out here.
eric anderson-nosredna cire
Velocity Motors 
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Joined: March 08, 2002
Location: Manitoba, Canada
Posted: May 25, 2006 at 9:06 AM / IP Logged  
" PLEN --- NUMS " is how I was told to pronounce this. Ithe term is also used in the intake manifold for vehicles.
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
torquehead 
Copper - Posts: 144
Copper spacespace
Joined: January 15, 2006
Location: United States
Posted: May 27, 2006 at 12:33 AM / IP Logged  

OK, you asked for it!  Straight from the Yahoo Dictionary:

ple·num  FG Heater Ductwork - Last Post -- posted image.  (plFG Heater Ductwork - Last Post -- posted image.FG Heater Ductwork - Last Post -- posted image.nFG Heater Ductwork - Last Post -- posted image.m, plFG Heater Ductwork - Last Post -- posted image.nFG Heater Ductwork - Last Post -- posted image.FG Heater Ductwork - Last Post -- posted image.m) KEY  

NOUN:
pl. ple·nums or ple·na   (plFG Heater Ductwork - Last Post -- posted image.FG Heater Ductwork - Last Post -- posted image.nFG Heater Ductwork - Last Post -- posted image., plFG Heater Ductwork - Last Post -- posted image.nFG Heater Ductwork - Last Post -- posted image.FG Heater Ductwork - Last Post -- posted image.) KEY  

  1. An assembly or meeting with all members present.
  2. A condition, space, or enclosure in which air or other gas is at a pressure greater than that of the outside atmosphere.
  3. The condition of being full; fullness.
  4. A space completely filled with matter.

And of coarse......Merriam - Webster's Online Dictionary.....

Main Entry: ple·num FG Heater Ductwork - Last Post -- posted image. FG Heater Ductwork - Last Post -- posted image.

Pronunciation: 'ple-n&m, 'plE-
Function: noun
Etymology: New Latin, from Latin, neuter of plenus
1 a : a space or all space every part of which is full of matter b : an air-filled space in a structure; especially : one that receives air from a blower for distribution (as in a ventilation system)
2 : a general assembly of all members especially of a legislative body
3 : the quality or state of being full

Hey ojtv8cj, what about using thin metal flashing?  Its bendable, easily cut to shape, and when you get it into the founding symmetry your construction requires, wrap it in FG for closing the gaps as well as for overall structural integrity?


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