dear craig
ok my bad ... i had not thought it all the way through in regard to the
multi purpose vent exhaust
requiring natural flow to work efficiently ...

-- good thing we have this list to correct the sillies form doing stuff that
would be uncool or unsafe
thanks
yours

On Fri, Aug 8, 2008 at 12:13 PM, Bill Glenn <idahobill@gmail.com> wrote:

> On Fri, 8 Aug 2008 07:42:16 -0700, Roger Whittaker <rogerwhitt1@GMAIL.COM>
> wrote:
>
> >the flu for the fridge simply needs to be pointed away from the van
> >so sown and to the side rather than up to the side ...
> >and no holes in the side of the van
>
> I would have to disagree.  Except when manually operating the air pump to
> light the refrigerator in propane mode, the fridge is not power vented, but
> relies on natural convection.  The heat produced by any of the three modes
> of operation results in hot air flowing upward through the exhaust tube and
> exiting through the side of the van to the outside air. Since the intake
> and exhaust are open only on the ends where they penetrate the wall of the
> van, and are otherwise sealed, this same convection in the exhaust is
> responsible for drawing in fresh air through the intake.  Convection will
> not occur in an exhaust tube directed downward, with the result that the
> fridge would likely not work in any of the three modes, but particularly in
> propane mode, where, without convection in the exhaust, there would be no
> fresh air arriving through the intake for combustion to take place.
>
> Bill
>
>
> This flow of air will not occur if the venting is routed downward, and
> without it, the fridge will not work in any mode.  Further, this same
> convection in the exhaust also results in fresh air being drawn in for
> combustion when operating on propane.  If you think the Dometic is hard to
> light now  Interfere with this design and risk the fridge not working
>

--
roger w
There are two kinds of jobs in the world:
Picking up garbage and telling people things.
Successful people do both, with the same good attitude. (riw)
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