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Posted by on June 21, 2007, 11:47 pm
>
> >I have a 2000 Sq ft house in Texas. ( 5 YO)
> >The front two bedrooms are either hot in Summer or cold in winter(face
> >west). I have ONE return in the back corner of the house with a 18 inch
hose
> >feeding my 5 ton air handler. When the fan kicks on it will about suck
the
> >hat off you head!
> > It was suggested that I need a return in the front to balance it out.
> >So i must build a plenum. (because it doesnt have one, now the hose just
> >goes straight into air handler)
> >Questions are this:
> > What material do i build the plenum out of?
> > Should I down size the return ducts to say 14 or 12 inch since now there
> >will be 2?
> >
> >thanks in advance
> >
> >
> You can build it out of cardboard and duct tape. Just paint it up real
> well with mastic. Use bubble gum to caulk the corners.
> 2 - 6 inch returns should be more than enough. You gotta keep that
> velocity up, you know.
> Bubba
It will last longer if you use the double thick cardboard.
Ducky brand of duct tape holds up better too.
The 2-6" returns are probably ok, but you might go with 4-4" returns as they
are easier to work with and you can purchase a 4" hole saw to make your
holes!
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